FIXED MICROWAVE SERVICES

• Citation: 47 CFR Part 101
• Sections: 99

§ 101.3 Definitions.

As used in this part:

24 GHz Service. A fixed point-to-point, point-to-multipoint, and multipoint-to-multipoint radio system in the 24.25-24.45 GHz band and in the 25.05-25.25 GHz band consisting of a fixed main (nodal) station and a number of fixed user terminals. This service may encompass any digital fixed service.

Antenna power gain. The ratio of the maximum radiation intensity to that of an isotropic (omnidirectional) radiator in the far field of its main (forward direction) lobe.

Antenna power input. The radio frequency peak or RMS power, as the case may be, supplied to the antenna from the antenna transmission line and its associated impedance matching network.

Antenna structure. The antenna, its supporting structure and anything attached to it.

Assigned frequency. The center of the frequency band assigned to a station.

Assigned frequency bandwidth. The frequency band within which the emission of a station is authorized; the width of the band equals the necessary bandwidth plus twice the absolute value of the frequency tolerance.

Authorized bandwidth. The maximum bandwidth authorized to be used by a station as specified in the station license. (See § 2.202 of this chapter)

Authorized frequency. The frequency, or frequency range, assigned to a station by the Commission and specified in the instrument of authorization.

Authorized power. The maximum power a station is permitted to use. This power is specified by the Commission in the station's authorization.

Automatic Transmitter Power Control (ATPC). ATPC is a feature of a digital microwave radio system that adjusts the transmitter output power. ATPC allows the transmitter to operate at less than maximum power for most of the time. In a radio employing ATPC, the transmit power is reduced during normal operation conditions. When the receiver detects a reduction in signal level, a control signal is sent to the far end transmitter, instructing it to increase the power output to compensate for the signal reduction. The power output is limited to the licensed (maximum) transmit power. Guidelines for use of ATPC are set forth in the TIA Telecommunications Systems Bulletin TSB 10, “Interference Criteria for Microwave Systems (TSB 10).”

Bandwidth occupied by an emission. The band of frequencies comprising 99 percent of the total radiated power extended to include any discrete frequency on which the power is at least 0.25 percent of the total radiated power.

Bit rate. The rate of transmission of information in binary (two state) form in bits per unit time.

Carrier. In a frequency stabilized system, the sinusoidal component of a modulated wave whose frequency is independent of the modulating wave; or the output of a transmitter when the modulating wave is made zero; or a wave generated at a point in the transmitting system and subsequently modulated by the signal; or a wave generated locally at the receiving terminal which when combined with the side bands in a suitable detector, produces the modulating wave.

Carrier frequency. The output of a transmitter when the modulating wave is made zero.

Central office. A landline termination center used for switching and interconnection of public message communication circuits.

Common carrier fixed point-to-point microwave service. A common carrier public radio service rendered on microwave frequencies by fixed and temporary fixed stations between points that lie within the United States or between points to its possessions or to points in Canada or Mexico.

Communication common carrier. Any person engaged in rendering communication service for hire to the public.

Contiguous United States. For the 3700-4200 MHz band, the contiguous United States consists of the contiguous 48 states and the District of Columbia as defined by Partial Economic Areas Nos. 1-41, 43-211, 213-263, 265-297, 299-359, and 361-411, which includes areas within 12 nautical miles of the U.S. Gulf coastline ( see § 27.6(m) of this chapter). In this context, the rest of the United States includes the Honolulu, Anchorage, Kodiak, Fairbanks, Juneau, Puerto Rico, Guam-Northern Mariana Islands, U.S. Virgin Islands, American Samoa, and the Gulf of Mexico PEAs (Nos. 42, 212, 264, 298, 360, 412-416).

Control point. An operating position at which an operator responsible for the operation of the transmitter is stationed and which is under the control and supervision of the licensee.

Control station. A fixed station, the transmissions of which are used to control automatically the emissions or operations of a radio station, or a remote base station transmitter.

Coordination area. The area associated with a station outside of which another station sharing the same or adjacent frequency band neither causes nor is subject to interfering emissions greater than a permissible level.

Coordination contour. The line enclosing the coordination area.

Coordination distance. The distance on a given azimuth from a station beyond which another station neither causes nor is subject to interfering emissions greater than a permissible level.

Digital Electronic Message Nodal Station. A fixed point-to-multipoint radio station in a Digital Electronic Message Service providing two-way communication with Digital Electronic Message User Stations.

Digital Electronic Message Service. A two-way end-to-end fixed radio service utilizing digital termination systems for the exchange of digital information in the frequency bands 10,550-10,680 MHz, 18,820-18,920 MHz, and 19,160-19,260 MHz. This service may also make use of point-to-point microwave facilities, satellite facilities or other communications media to interconnect digital termination systems to comprise a network.

Digital Electronic Message User Station. Any one of the fixed microwave radio stations located at users' premises, lying within the coverage area of a Digital Electronic Message Nodal Station, and providing two-way digital communications with the Digital Electronic Message Nodal Station.

Digital modulation. The process by which some characteristic (frequency, phase, amplitude or combinations thereof) of a carrier frequency is varied in accordance with a digital signal, e.g., one consisting of coded pulses or states.

Drop point. A term used in the point-to-point microwave radio service to designate a terminal point where service is rendered to a subscriber.

Earth station. A station located either on the Earth's surface or within the major portion of Earth's atmosphere and intended for communication:

(1) With one or more space stations; or

(2) With one or more stations of the same kind by means of one or more reflecting satellites or other objects in space.

Effective Radiated Power (ERP). The product of the power supplied to the antenna and its gain relative to a half-wave dipole in a given direction.

Equivalent Isotropically Radiated Power (EIRP). The product of the power supplied to the antenna and the antenna gain in a given direction relative to an isotropic antenna.

Exchange. A unit of a communication company or companies for the administration of communication service in a specified area, which usually embraces a city, town, or village and its environs, and consisting of one or more central offices, together with the associated plant, used in furnishing communication service in that area.

Exchange area. The geographic area included within the boundaries of an exchange.

Fixed satellite earth station. An earth station intended to be used at a specified fixed point.

Fixed relay station. A fixed station associated with one or more stations, established to receive radio signals directed to it and to retransmit them automatically on a fixed service frequency.

Fixed service. A radio communications service between specified fixed points.

Fixed station. A station in the fixed service.

Frequency tolerance. The maximum permissible departure by the center frequency of the frequency band occupied by an emission from the assigned frequency or, by the characteristic frequency of an emission from the reference frequency.

Note:

The frequency tolerance is expressed as a percentage or in Hertzs.

General communication. Two-way voice communication, through a base station, between:

(1) A common carrier land mobile or airborne station and a landline telephone station connected to a public message landline telephone system;

(2) Two common carrier land mobile stations;

(3) Two common carrier airborne stations;

(4) A common carrier land mobile station and a common carrier airborne station.

Harmful interference. Interference that endangers the functioning of a radionavigation service or of other safety services or seriously degrades, obstructs or repeatedly interrupts a radiocommunication service operating in accordance with these regulations.

Internodal link. A point-to-point communications link used to provide communications between nodal stations or to interconnect nodal stations to other communications media.

Landing area. A landing area means any locality, either of land or water, including airports and intermediate landing fields, which is used, or approved for use for the landing and take-off of aircraft, whether or not facilities are provided for the shelter, servicing, or repair of aircraft, or for receiving or discharging passengers or cargo.

Local Multipoint Distribution Service Backbone Link. A point-to-point radio service link in a Local Multipoint Distribution Service System that is used to interconnect Local Multipoint Distribution Service Hub Stations with each other or with the public switched telephone network.

Local Multipoint Distribution Service Hub Station. A fixed point-to-point or point-to-multipoint radio station in a Local Multipoint Distribution Service System that provides one-way or two-way communication with Local Multipoint Distribution Service Subscriber Stations.

Local Multipoint Distribution Service Subscriber Station. Any one of the fixed microwave radio stations located at users' premises, lying within the coverage area of a Local Multipoint Distribution Service Hub Station, capable of receiving one-way communications from or providing two-way communications with the Local Multipoint Distribution Service Hub Station.

Local Multipoint Distribution Service System. A fixed point-to-point or point-to-multipoint radio system consisting of Local Multipoint Distribution Service Hub Stations and their associated Local Multipoint Distribution Service Subscriber Stations.

Local television transmission service. A public radio communication service for the transmission of television material and related communications.

Long haul system. A microwave system licensed under this part in which the longest radio circuit of tandem radio paths exceeds 402 kilometers.

Master station. A station in a multiple address radio system that controls, activates or interrogates four or more remote stations. Master stations performing such functions may also receive transmissions from remote stations.

Message center. The point at which messages from members of the public are accepted by the carrier for transmission to the addressee.

Microwave frequencies. As used in this part, this term refers to frequencies of 890 MHz and above.

Microwave link. A link is defined as a simplex communications circuit between two points utilizing a single frequency/polarization assignment. A duplex communications circuit would require two links, one link in each direction.

Miscellaneous common carriers. Communications common carriers that are not engaged in the business of providing either a public landline message telephone service or public message telegraph service.

Mobile earth station. An earth station intended to be used while in motion or during halts at unspecified points.

Mobile service. A radio communication service between mobile and land stations or between mobile stations.

Mobile station. A station in the mobile service intended to be used while in motion or during halts at unspecified points.

Multichannel Video Distribution and Data Service (MVDDS). A fixed microwave service licensed in the 12.2-12.7 GHz band that provides various wireless services. Mobile and aeronautical operations are prohibited.

Multiple address system (MAS). A point-to-multipoint or point-to-point radio communications system used for either one-way or two-way transmissions that operates in the 928/952/956 MHz, the 928/959 MHz or the 932/941 MHz bands in accordance with § 101.147.

National Spatial Reference System. The National Spatial Reference System (NSRS) is the name given to all Geodetic Control information contained in the National Geodetic Survey (NGS) Data Base. This includes: A, B, First, Second, and Third Order horizontal and vertical control observed by NGS as well as data submitted by other agencies (i.e., USGS, BLM, States, Counties, Cities, and private surveying organizations).

Necessary bandwidth. For a given class of emission, the width of the frequency band that is just sufficient to ensure the transmission of information at the rate and with the quality required under specified conditions. The necessary bandwidth may be calculated using the formulas in § 2.202 of this chapter.

Nodal station. The central or controlling stations in a microwave radio system operating on point-to-multipoint or multipoint-to-multipoint frequencies with one or more user stations or internodal links.

Occupied bandwidth. The width of a frequency bandwidth such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified percentage, B/2 of the total mean power of a given emission. Unless otherwise specified by the CCIR for the appropriate class of emission, the value of B/2 should be taken as 0.5%.

Note:

The percentage of the total power outside the occupied bandwidth is represented by B.

Operational fixed station. A private fixed station not open to public correspondence.

Passive repeater. A re-radiation device associated with a transmitting/receiving antenna system that re-directs intercepted radiofrequency energy. For example, it may consist of reflector(s) or back-to-back parabolic or horn antennas.

Path length. The total distance of a path from the transmit to the receive antenna, inclusive of all passive repeaters, if any.

Payload capacity. The bit rate available for transmission of data over a radiocommunication system, excluding overhead data generated by the system.

Periscope antenna system. An antenna system which involves the use of a passive reflector to deflect radiation from or to a directional transmitting or receiving antenna which is oriented vertically or near vertically.

Prior coordination. A bilateral process conducted prior to filing applications which includes the distribution of the technical parameters of a proposed radio system to potentially affected parties for their evaluation and timely response.

Private carrier. An entity licensed in the private service and authorized to provide communications service to other private service eligibles on a commercial basis.

Private line service. A service whereby facilities for communication between two or more designated points are set aside for the exclusive use or availability for use of a particular customer and authorized users during stated periods of time.

Private operational fixed point-to-point microwave service. A private radio service rendered by fixed and temporary fixed stations on microwave frequencies for the exclusive use or availability for use of the licensee or other eligible entities for communication between two or more designated points. Service may be provided between points within the United States, points within United States possessions, or between the United States and points in Canada or Mexico.

Public correspondence. Any telecommunication which the offices and stations must, by reason of their being at the disposal of the public, accept for transmission.

Public message service. A service whereby facilities are offered to the public for communication between all points served by a carrier or by interconnected carriers on a non-exclusive message by message basis, contemplating a separate connection for each occasion of use.

Radio station. A separate transmitter or a group of transmitters under simultaneous common control, including the accessory equipment required for carrying on a radiocommunication service.

Radiocommunication. Telecommunication by means of radio waves.

Rated power output. The maximum radio frequency power output capability (peak or average power) of a transmitter, under optimum conditions of adjustment and operation, specified by its manufacturer.

Record communication. Any transmission of intelligence which is reduced to visual record form at the point of reception.

Reference frequency. A frequency having a fixed and specified position with respect to the assigned frequency. The displacement of this frequency with respect to the assigned frequency has the same absolute value and sign that the displacement of the characteristic frequency has with respect to the centre of the frequency band occupied by the emission.

Relay station. A fixed station used for the reception and retransmission of the signals of another station or stations.

Remote station. A fixed station in a multiple address radio system that transmits one-way to one or more central receive sites, controls a master station, or is controlled, activated or interrogated by, and may respond to, a master station.

Repeater station. A fixed station established for the automatic retransmission of radiocommunications received from one or more mobile stations and directed to a specified location; for public mobile radio operations, a fixed station that automatically retransmits the mobile communications and/or transmitter information about the base station, along a fixed point-to-point link between the base station and the central station.

Secondary operations. Radio communications which may not cause interference to operations authorized on a primary basis and which are not protected from interference from these primary operations.

Short haul system. A microwave system licensed under this part in which the longest radio circuit of tandem radio paths does not exceed 402 kilometers.

Signal booster. A device at a fixed location which automatically receives, amplifies, and retransmits on a one-way or two-way basis, the signals received from base, fixed, mobile, and portable stations, with no change in frequency or authorized bandwidth. A signal booster may be either narrowband (Class A), in which case the booster amplifies only those discrete frequencies intended to be retransmitted, or broadband (Class B), in which case all signals within the passband of the signal booster filter are amplified.

Signaling communication. One-way communications from a base station to a mobile or fixed receiver, or to multi-point mobile or fixed receivers by audible or subaudible means, for the purpose of actuating a signaling device in the receiver(s) or communicating information to the receiver(s), whether or not the information is to be retained in record form.

Standby transmitter. A transmitter installed and maintained for use in lieu of the main transmitter only during periods when the main transmitter is out of service for maintenance or repair.

Symbol rate. Modulation rate in bauds. This rate may be higher than the transmitted bit rate as in the case of coded pulses or lower as in the case of multilevel transmission.

Telegraphy. A form of telecommunication which is concerned in any process providing transmission and reproduction at a distance of documentary matter, such as written or printed matter or fixed images, or the reproduction at a distance of any kind of information in such a form. Unless otherwise specified, telegraphy means a form of telecommunication for the transmission of written matter by the use of signal code.

Telemetering. The use of telecommunication for automatic indicating or recording measurements at a distance from the measuring instrument.

Telephony. A form of telecommunication set up for the transmission of speech, or in some cases, other sounds.

Television. A form of telecommunication for transmission of transient images of fixed or moving objects.

Temporary fixed station. A station established in a non-permanent mode (temporary) at a specified location for a short period of time, ranging up to one year. Temporary-fixed operations are itinerant in nature, and are not to be confused with mobile-type operations.

Universal Licensing System (ULS). The consolidated database, application filing system and processing system for all Wireless Telecommunications Services. The ULS offers Wireless Telecommunications Bureau (WTB) applicants and the general public electronic filing of all applications requests, and full public access to all WTB licensing data.

User or subscriber station. The station(s) in a microwave radio system operating at the users' premises on point-to-multipoint or multipoint-to-multipoint frequencies and communicating with one or more nodal stations.

Video entertainment material. The transmission of a video signal (e.g., United States Standard Monochrome or National Television Systems Committee 525-line television) and an associated audio signal which is designed primarily to amuse or entertain, such as movies and games.

§ 101.4 Transition plan.

(a) All systems subject to parts 21 and 94 of this chapter in effect as of July 31, 1996, which are licensed or which are proposed in an application on file, as of July 31, 1996, are subject to the requirements under part 21 or part 94 of this chapter as contained in the CFR edition revised as of October 1, 1995 and amended in the Federal Register through July 31, 1996, as applicable, indefinitely.

(b) For purposes of this section, a “system” shall include:

(1) The originally licensed system;

(2) Any modification to the original system involving a change in antenna azimuth, antenna beam width, channel loading, emission, station location, antenna height, authorized power, or authorized frequencies;

(3) Additional links constructed to complete an integrated communications network; or

(4) Operationally connecting new facilities and/or frequencies.

(c) All radio frequency devices authorized pursuant to part 2 of this chapter as being in compliance with applicable part 21 or part 94 of this chapter in effect as of July 31, 1996, requirements can be used indefinitely with systems licensed under this part 101.

§ 101.5 Station authorization required.

(a) [Reserved]

(b) A separate application form must be filed electronically via ULS for each Digital Electronic Message Service (DEMS) Nodal Station. No license is required for a DEMS User Station or for a Multiple Address System (MAS) remote or mobile station. Authority for a DEMS Nodal Station licensee to serve a specific number of user stations to be licensed in the name of the carrier must be requested on FCC Form 601 filed for the DEMS Nodal Station. Authority for any number of MAS remotes and authority to serve MAS mobiles (to the extent this part permits such operation) within a specified area will be included in the authority for the MAS fixed master stations.

(c) [Reserved]

(d) For stations authorized under subpart H (Private Operational Fixed Point-to-Point Microwave Service), subpart I (Common Carrier Fixed Point-to-Point Microwave Service), and subpart L of this part (Local Multipoint Distribution Service), construction of new or modified stations may be initiated prior to grant of an authorization. As a condition to commencing construction under this paragraph (d), the Commission may, at any time and without hearing or notice, prohibit such construction for any reason. Any construction conducted under this paragraph is at the applicant's sole risk.

§ 101.7 Eligibility for station license.

(a) A station license may not be granted to or held by a foreign government or by a representative of a foreign government.

(b) In the Common Carrier service, a station license may not be granted or held by:

(1) Any alien or the representative of any alien;

(2) Any corporation organized under the laws of any foreign government;

(3) Any corporation of which more than one-fifth of the capital stock is owned of record or voted by: Aliens or their representatives; a foreign government or representatives thereof; or any corporation organized under the laws of a foreign country; or

(4) Any corporation directly or indirectly controlled by any other corporation of which more than one-fourth of the capital stock is owned of record or voted by aliens or their representatives, or by a foreign government or representative thereof, or by any corporation organized under the laws of a foreign government, if the Commission finds that the public interest will be served by the refusal or revocation of such license.

§ 101.21 Technical content of applications.

Applications, except FCC Form 175, must contain all technical information required by the application form and any additional information necessary to fully describe the proposed facilities and to demonstrate compliance with all technical requirements of the rules governing the radio service involved (see subparts C, F, G, I, J, and L of this part, as appropriate). The following paragraphs describe a number of technical requirements.

(a)-(d) [Reserved]

(e) Each application in the Private Operational Fixed Point-to-Point Microwave Service and the Common Carrier Fixed Point-to-Point Microwave Service must include the following information:

Applicant's name and address.

Transmitting station name.

Transmitting station coordinates.

Frequencies and polarizations to be added, changed or deleted.

Transmitting equipment, its stability, effective isotropic radiated power, emission designator, and type of modulation (digital).

Transmitting antenna(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer.

Transmitting antenna center line height(s) above ground level and ground elevation above mean sea level.

Receiving station name.

Receiving station coordinates.

Receiving antenna(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer.

Receiving antenna center line height(s) above ground level and ground elevation above mean sea level.

Path azimuth and distance.

Note:

The position location of antenna sites shall be determined to an accuracy of no less than ±1 second in the horizontal dimensions (latitude and longitude) and ±1 meter in the vertical dimension (ground elevation) with respect to the National Spacial Reference System.

(f) All applicants for regular authorization must, before filing an application, major amendments to a pending application, or modifications to a license, prior coordinate the proposed frequency usage with existing users in the area and other applicants with previously filed applications in accordance with the procedures in § 101.103. In those frequency bands shared with the communication-satellite service, an applicant for a new station, for new points of communication, for the initial frequency assignment in a shared band for which coordination has not been previously effected, or for authority to modify the emission or radiation characteristics of an existing station in a manner that may increase the likelihood of harmful interference, must ascertain in advance whether the station(s) involved lie within the great circle coordination distance contours of an existing Earth station or one for which an application has been accepted for filing, and must coordinate his proposal with each such Earth station operator or applicant. For each potential interference path, the applicant must perform the computations required to determine that the expected level of interference to or from the terrestrial station does not exceed the maximum permissible interference power level in accordance with the technical standards and requirements of § 25.251 of this chapter. The Commission may, in the course of examining any application, require the submission of additional showings, complete with pertinent data and calculations in accordance with part 25 of this chapter, showing that harmful interference will not likely result from the proposed operation. (Technical characteristics of the Earth stations on file and coordination contour maps for those Earth stations will be kept on file for public inspection in the offices of the Commission's Space Bureau in Washington, DC.)

(g) Each application in the Local Multipoint Distribution Service and 24 GHz Service must contain all technical information required by FCC Form 601 and any other applicable form or associated Public Notices and by any applicable rules in this part.

§ 101.31 Temporary and conditional authorizations.

(a) Operation at temporary locations. (1) Authorizations may be issued upon proper application for rendition of temporary service to subscribers under the following conditions:

(i) When a fixed station, authorized to operate at temporary locations, is to remain at a single location for more than 6 months, an application for a station authorization designating that single location as the permanent location shall be filed at least 90 days prior to the expiration of the 6 month period;

(ii) The station shall be used only for rendition of communication service at a remote point where the provision of wire facilities is not practicable within the required time frame; and

(iii) The antenna structure height employed at any location shall not exceed the criteria set forth in § 17.7 of this chapter unless, in each instance, authorization for use of a specific maximum antenna structure height for each location has been obtained from the Commission prior to erection of the antenna. See § 101.125.

(2) Applications for authorizations to operate stations at temporary locations under the provisions of this section shall be made upon FCC Form 601. Blanket applications may be submitted for the required number of transmitters. An application for authority to operate a fixed station at temporary locations must specify the precise geographic area within which the operation will be confined. The area specified must be defined as a radius of operation about a specific coordinate (latitude/longitude), or as a county, or as a State. Exception to this specific requirement may be made for exceptionally large areas, such as the continental United States. Sufficient data must be submitted to show the need for the proposed area of operation.

(3) Operations in the 17.8-19.7 GHz band for any services and in the 17.7-17.8 GHz band for MVPD operations are prohibited in the areas defined in § 1.924 of this chapter. Operations proposed in the areas defined in § 1.924 of this chapter may not commence without prior specific notification to, and authorization from, the Commission.

(b) Conditional authorization. (1) An applicant for a new point-to-point microwave radio station(s) or a modification of an existing station(s) in the 952.95-956.15 and 956.55-959.75 MHz band segments; the 3700-4200, 5925-6425, 6525-6875, and 6875-7125 MHz bands; the 10.550-10.680, 10.700-11.700, 12.700-13.150, 13.200-13.250, 17.700-18.300, and 19.300-19.700 GHz bands; and the 21.800-22.000 and 23.000-23.200 GHz band segments (see § 101.147(s)(8) for specific service usage) may operate the proposed station(s) during the pendency of its applications(s) upon the filing of a properly completed formal application(s) that complies with subpart B of this part, if the applicant certifies that the following conditions are satisfied:

(i) The frequency coordination procedures of § 101.103 have been successfully completed;

(ii) The antenna structure(s) has been previously studied by the Federal Aviation Administration and determined to pose no hazard to aviation safety as required by subpart B of part 17 of this chapter; or the antenna or tower structure does not exceed 6.1 meters above ground level or above an existing man-made structure (other than an antenna structure), if the antenna or tower has not been previously studied by the Federal Aviation Administration and cleared by the FCC;

(iii) The grant of the application(s) does not require a waiver of the Commission's rules:

(iv) The applicant has determined that the facility(ies) will not significantly affect the environment as defined in § 1.1307 of this chapter;

(v) The station site does not lie within 56.3 kilometers of any international border, within areas identified in §§ 1.924(a) through (d) of this chapter unless the affected entity consents in writing to conditional operation or, if for any services on frequencies in the 17.8-19.7 GHz band and for MVPD operations in the 17.7-17.8 GHz band, within any of the areas identified in § 1.924 of this chapter;

(vi) If operated on frequencies in the 10.6-10.68 GHz band, the station site does not lie within any of the following regions:

Name of region

Dimensions = radius in kilometers

Center-point

Kitt Peak, Arizona

60

N31-57-22; W111-36-42

Big Pine, California

60

N37-13-54; W118-16-34

Vandenburg AFB, California

75

N34-43-00; W120-34-00

Denver, Colorado

150

N39-43-00; W104-46-00

Washington, DC

150

N38-48-00; W76-52-00

Eglin AFB, Florida

50

N30-29-00; W86-32-00

Mauna Kea, Hawaii

60

N19-48-16; W155-27-29

North Liberty, Iowa

60

N41-46-17; W91-34-26

Maryland Point, Maryland

60

N38-22-26; W77-14-00

Hancock, New Hampshire

60

N42-56-01; W71-59-12

Los Alamos, New Mexico

60

N35-46-30; W106-14-42

Pie Town, New Mexico

60

N34-18-04; W108-07-07

Socorro, New Mexico

160

N34-04-43; W107-37-04

WSMR, New Mexico

75

N32-23-00; W106-29-00

Minot AFB, North Dakota

80

N48-15-00; W101-17-00

Arecibo, Puerto Rico

160

N18-20-37; W66-45-11

Fort Davis, Texas

60

N30-38-06; W103-56-39

St. Croix, Virgin Islands

60

N17-45-31; W64-35-03

Brewster, Washington

60

N48-07-53; W119-40-55

Green Bank, West Virginia

160

N38-25-59; W79-50-24

Note: Coordinates are referenced to North American Datum 1983 (NAD83).

(vii) With respect to the 21.8-22.1 GHz and 23.0-23.3 GHz band, the filed application(s) does not propose to operate on a frequency pair centered on other than 21.825/23.025 GHz, 21.875/23.075 GHz, 21.925/23.125 GHz, 21.975/23.175 GHz, 22.025/23.225 GHz or 22.075/23.275 GHz and does not propose to operate with an E.I.R.P. greater than 55 dBm. The center frequencies are shifted from the center frequencies listed above for certain bandwidths as follows: add 0.005 GHz for 20 MHz bandwidth channels, add 0.010 GHz for 30 megahertz bandwidth channels, and subtract 0.005 GHz for 40 MHz bandwidth channels. See specific channel listings in § 101.147(s).

(viii) The filed application(s) is consistent with the proposal that was coordinated pursuant to § 101.103.

(2) Conditional authority ceases immediately if the application(s) is returned by the Commission because it is not acceptable for filing.

(3) Conditional authorization does not prejudice any action the Commission may take on the subject application(s). Conditional authority is accepted with the express understanding that such authority may be modified or cancelled by the Commission at any time without hearing if, in the Commission's discretion, the need for such action arises. An applicant operating pursuant to this conditional authority assumes all risks associated with such operation, the termination or modification of the conditional authority, or the subsequent dismissal or denial of its applications(s).

§ 101.55 Considerations involving transfer or assignment applications.

(a) Except as provided for in paragraph (d) of this section, licenses not authorized pursuant to competitive bidding procedures may not be assigned or transferred prior to the completion of construction of the facility.

(b) [Reserved]

(c) At its discretion, the Commission may require the submission of an affirmative, factual showing (supported by affidavits of a person or persons with personal knowledge thereof) to demonstrate that the proposed assignor or transferor has not acquired an authorization or operated a station for the principal purpose of profitable sale rather than public service. This showing may include, for example, a demonstration that the proposed assignment or transfer is due to changed circumstances (described in detail) affecting the licensee subsequent to the acquisition of the license, or that the proposed transfer of radio facilities is incidental to a sale of other facilities or merger of interests.

(d) If a proposed transfer of radio facilities is incidental to a sale or other facilities or merger of interests, the showing specified under paragraph (c) of this section shall be submitted and include an additional exhibit that:

(1) Discloses complete details as to the sale of facilities or merger of interests;

(2) Segregates clearly by an itemized accounting, the amount of consideration involved in the sale of facilities or merger of interests; and

(3) Demonstrates that the amount of consideration assignable to the facilities or business interests involved represents their fair market value at the time of the transaction.

§ 101.61 Certain modifications not requiring prior authorization in the Local Multipoint Distribution Service and 24 GHz Service

In the Local Multipoint Distribution Service (LMDS) licensees may add, remove, or relocate facilities within the area authorized by the license without prior authorization. Upon request by an incumbent licensee or the Commission, an LMDS licensee shall furnish the technical parameters, location and coordinates of the completion of the addition, removal, relocation or modification of any of its facilities within the BTA. The LMDS licensee must provide such information within ten (10) days of receiving a written request. This section also applies to 24 GHz licensees that are licensed according to Economic Areas.

§ 101.63 Period of construction; certification of completion of construction.

Link to an amendment published at 89 FR 33258, Apr. 29, 2024.

(a) Each Station, except in Multichannel Video Distribution and Data Service, Local Multipoint Distribution Service, and the 24 GHz Service, authorized under this part must be in operation within 18 months from the initial date of grant.

(b) For the 70 GHz, 80 GHz, and 90 GHz bands, the 12-month construction period will commence on the date of each registration of each individual link; adding links will not change the overall renewal period of the license.

(c) Failure to timely begin operation means the authorization cancels automatically.

(d) The frequencies associated with all point-to-multipoint authorizations which have cancelled automatically or otherwise been recovered by the Commission will again be made available for reassignment on a date and under terms set forth by Public Notice. See § 101.1331(d) for treatment of MAS incumbent site-by-site licenses recovered in EAs.

(e)-(f) [Reserved]

(g) MVPD licensees which have both analog and digital emissions designators specified on the license and which already have, or may transition from analog to digital operations, or a combination of both, meet their completion of construction requirements and do not automatically surrender their license provided they are using either set of emissions. If the licensee has completed the transition to digital, the license can remove the unused analog emission designators the next time a modification or renewal application is filed.

§ 101.65 Termination of station authorizations.

In addition to the provisions of § 1.953 of this chapter, a site-based license will be automatically terminated in whole or in part without further notice to the licensee upon the voluntary removal or alteration of the facilities, so as to render the station not operational for a period of 30 days or more. A licensee is subject to this provision commencing on the date it is required to be providing service or operating under § 101.63. This provision is inapplicable to blanket authorizations to operate fixed stations at temporary locations pursuant to the provisions of § 101.31(a)(2). See § 101.305 for additional rules regarding temporary and permanent discontinuation of service.

§ 101.67 License period.

Licenses for stations authorized under this part will be issued for a period not to exceed 10 years. Unless otherwise specified by the Commission, the expiration of regular licenses shall be on the date (month and day) selected by licensees in the year of expiration.

§ 101.95 Provisions for grandfathered licensees in the 18.30-19.30 GHz band.

(a) FSS licensees may require the incumbent to cease operations, provided that the FSS licensee turns on a system within interference range of the incumbent, as determined by TIA Bulletin 10-F or any standard successor. FSS licensee notification to the affected FS licensee must be in writing and must provide the incumbent with no less than six months to vacate the spectrum. After the six-month notice period has expired, the FS licensee must relinquish its license to the Commission, unless it has entered into an agreement with the affected FSS licensee that allows it to continue to operate on a mutually agreed upon basis.

(b) If the parties cannot agree on a schedule or an alternative arrangement, requests for extension will be accepted and reviewed on a case-by-case basis. The Commission will grant such extensions only if the incumbent can demonstrate that:

(1) It cannot relocate within the six-month period (e.g., because no alternative spectrum or other reasonable option is available); and

(2) The public interest would be harmed if the incumbent is forced to terminate operations (e.g., if public safety communications services would be disrupted).

§ 101.101 Frequency availability.

Frequency band (MHz)

Radio service

Common carrier (Part 101)

Private radio (Part 101)

Broadcast auxiliary (Part 74)

Other (parts 15, 21, 22, 24, 25, 27, 74, 78 & 100)

Notes

928-929

MAS

MAS

PRS

932.0-932.5

MAS

MAS

PRS

932.5-935.0

CC

OFS

(1).

941.0-941.5

MAS

MAS

PRS

941.5-944.0

CC

OFS

Aural BAS

(1).

952-958

OFS/MAS

PRS

958-960

MAS

OFS

1850-1990

OFS

PCS

2110-2130

CC

PET

2130-2150

OFS

PET

2160-2180

CC

ET

2180-2200

OFS

PET

2450-2500

CC

OFS

TV BAS

ISM

F/M/TF

2650-2690

OFS

MDS/ITFS

3700-4200

CC LTTS

OFS

SAT, ET

(2).

5925-6425

CC LTTS

OFS

SAT

6425-6525

LTTS

OFS

TV BAS

CARS

M.

6525-6875

CC

OFS

6875-7125

CC

OFS

TV BAS

CARS

10,550-10,680

CC

OFS DEMS

10,700-11,700

CC

OFS

SAT

12,200-12,700

MVDDS

MVDDS, POFS

DBS, NGSO FSS

12,700-13,250

CC LTTS

OFS

TV BAS

CARS

F/M/TF.

17,700-18,580

CC

OFS

TV BAS

SAT CARS

17,700-18,300

CC

OFS

TV BAS

CARS

18,300-18,580

CC

OFS

TV BAS

CARS SAT

18,580-18,820

CC

OFS

Aural BAS

SAT

18,820-18,920

CC

OFS

SAT

18,920-19,160

CC

OFS

Aural BAS

SAT

19,160-19,260

CC

OFS

SAT

19,260-19,700

CC

OFS

TV BAS

CARS SAT

21,200-23,600

CC LTTS

OFS

TF.

24,250-25,250

CC

OFS

29,100-29,250

LMDS

LMDS

SAT

31,000-31,300

CC LMDS LTTS

OFS LMDS

F/M/TF.

71,000-76,000

CC

OFS

25

F/M/TF

81,000-86,000

CC

OFS

25

F/M/TF

92,000-95,000

CC

OFS

15

F/M/TF.

BAS: Broadcast Auxiliary Service—(Part 74)

CARS: Cable Television Relay Service—(Part 78)

CC: Common Carrier Fixed Point-to-Point Microwave Service—(Part 101, Subparts C & I)

DBS: Direct Broadcast Satellite—(Part 100)

DEMS: Digital Electronic Message Service—(Part 101, Subpart G)

ISM: Industrial, Scientific & Medical—(Part 18)

ITFS: Instructional Television Fixed Service—(Part 74)

LTTS: Local Television Transmission Service—(Part 101, Subpart J)

MAS: Multiple Address System—(Part 101)

MDS: Multipoint Distribution Service—(Part 21)

OFS: Private Operational Fixed Point-to-Point Microwave Service—(Part 101, Subparts C & H)

PCS: Personal Communications Service—(Part 24)

PET: Emerging Technologies (per ET Dkt. No. 92-9, not yet assigned)

PRS: Paging and Radiotelephone Service—(Part 22, Subpart E)

SAT: Fixed Satellite Service—(Part 25)

Notes:

F—Fixed

M—Mobile

TF—Temporary Fixed

(1)—Applications for frequencies in the 932.5-935/941.5-944 MHz bands may be filed initially during a one-week period to be announced by public notice. After these applications have been processed, the Commission will announce by public notice a filing date for remaining frequencies. From this filing date forward, applications will be processed on a daily first-come, first-served basis.

(2) Frequencies in this band are shared with stations in the fixed satellite service outside the contiguous United States. Applications for new permanent or temporary facilities in these bands will not be accepted for locations in the contiguous United States. Licensees, as of April 19, 2018, of existing permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band. Such licensees may seek reimbursement of their reasonable costs based on the “comparable facilities” standard used for the transition of microwave links out of other bands, see § 101.73(d) of this chapter (defining comparable facilities as facilities possessing certain characteristics in terms of throughput, reliability and operating costs) subject to the demonstration requirements and reimbursement administrative provisions administrative provisions in part 27, subpart O, of this chapter.

§ 101.103 Frequency coordination procedures.

(a) Assignment of frequencies will be made only in such a manner as to facilitate the rendition of communication service on an interference-free basis in each service area. Unless otherwise indicated, each frequency available for use by stations in these services will be assigned exclusively to a single applicant in any service area. All applicants for, and licensees of, stations in these services must cooperate in the selection and use of the frequencies assigned in order to minimize interference and thereby obtain the most effective use of the authorized facilities. In the event harmful interference occurs or appears likely to occur between two or more radio systems and such interference cannot be resolved between the licensees thereof, the Commission may specify a time sharing arrangement for the stations involved or may, after notice and opportunity for hearing, require the licensees to make such changes in operating techniques or equipment as it may deem necessary to avoid such interference.

(b)(1) Operations in the bands 31,000-31,075 MHz and 31,225-31,300 MHz licensed prior to March 11, 1997, were licensed on an unprotected basis and are subject to harmful interference from similarly licensed operations in that band.

(i) Operations licensed in the Local Mulitpoint Distribution Service and those operations licensed prior to March 11, 1997, except in the Local Television Transmission Service, operating in these bands are equally protected against harmful interference from each other.

(ii) In the case of operations licensed prior to March 11, 1997, except in the Local Television Transmission Service, that are licensed on a point-to-radius basis, LMDS licensees shall be subject to the protection requirement established in this section in the case of existing links operated by such licensees, and in the case of links added by such licensees in the future in accordance with the terms of their point-to-radius licenses.

(iii) An LMDS licensee may not initiate operations within the point-to-radius area licensed to an operator (other than an operator in the Local Television Transmission Service) prior to March 11, 1997, even if such operator has not initiated operations to the fullest extent of the license. An LMDS licensee, however, may initiate operations at the border of such operator's license area without prior coordination if the LMDS licensee's operations would not cause harmful interference to the other operator's existing operations.

(iv) An operator (other than an operator in the Local Television Transmission Service) licensed on a point-to-radius basis prior to March 11, 1997, may add additional stations within its license area. Such operator shall coordinate with any affected LMDS licensee if its new operations might cause harmful interference to the existing operations of such LMDS licensee.

(v) Operations licensed prior to March 11, 1997, on a point-to-point basis may not be extended or otherwise modified through the addition of point-to-point links. Such operations shall be limited to the use of frequency pairs licensed as of March 11, 1997. Operations licensed in the Local Television Transmission Service as of March 11, 1997, may continue to operate, but such operators may not expand existing operations nor initiate new operations.

(2) Operations in the 31,075-31,225 MHz band licensed prior to March 11, 1997, shall receive no protection against harmful interference from authorized operations in the Local Multipoint Distribution Service in that band.

(3) Non-LMDS operations in the entire 31,000-31,300 MHz band licensed after March 11, 1997, based on applications refiled no later than June 26, 1998 are unprotected with respect to each other and subject to harmful interference from each other.

(i) Such operations and any operations licensed prior to March 11, 1997, in the band are unprotected with respect to each other and subject to harmful interference from each other.

(ii) Such operations are licensed on a secondary basis to LMDS operations licensed in the band, may not cause interference to LMDS operations, and are not protected from interference from LMDS operations.

(iii) Such operations licensed on a point-to-point basis may not be extended or otherwise modified through the addition of point-to-point links. Such operations licensed on a point-to-radius basis may add additional stations within the licensed area.

(c) Frequency diversity transmission will not be authorized in these services in the absence of a factual showing that the required communications cannot practically be achieved by other means. Where frequency diversity is deemed to be justified on a protection channel basis, it will be limited to one protection channel for the bands 3,700-4,200, 5925-6425, and 6525-6875 MHz, and a ratio of one protection channel for three working channels for the bands 10,550-10,680 and 10,700-11,700 MHz. In the bands 3,700-4,200, 5,925-6,425, and 6525-6875 MHz, no frequency diversity protection channel will be authorized unless there is a minimum of three working channels, except that where a substantial showing is made that a total of three working channels will be required within three years, a protection channel may be authorized simultaneously with the first working channel. A protection channel authorized under such exception will be subject to termination if applications for the third working channel are not filed within three years of the grant date of the applications for the first working channel. Where equipment employing digital modulation techniques with cross-polarized operation on the same frequency is used, the protection channel authorized under the above conditions may be considered to consist of both polarizations of the protection frequency where such is shown to be necessary.

(d) Frequency coordination. For each frequency authorized under this part, the following frequency usage coordination procedures will apply:

(1) General requirements. Proposed frequency usage must be prior coordinated with existing licensees, permittees and applicants in the area, and other applicants with previously filed applications, whose facilities could affect or be affected by the new proposal in terms of frequency interference on active channels, applied-for channels, or channels coordinated for future growth. Coordination must be completed prior to filing an application for regular authorization, or a major amendment to a pending application, or any major modification to a license. In coordinating frequency usage with stations in the fixed satellite service, applicants must also comply with the requirements of § 101.21(f). In engineering a system or modification thereto, the applicant must, by appropriate studies and analyses, select sites, transmitters, antennas and frequencies that will avoid interference in excess of permissible levels to other users. All applicants and licensees must cooperate fully and make reasonable efforts to resolve technical problems and conflicts that may inhibit the most effective and efficient use of the radio spectrum; however, the party being coordinated with is not obligated to suggest changes or re-engineer a proposal in cases involving conflicts. Applicants should make every reasonable effort to avoid blocking the growth of systems as prior coordinated. The applicant must identify in the application all entities with which the technical proposal was coordinated. In the event that technical problems are not resolved, an explanation must be submitted with the application. Where technical problems are resolved by an agreement or operating arrangement between the parties that would require special procedures be taken to reduce the likelihood of interference in excess of permissible levels (such as the use of artificial site shielding) or would result in a reduction of quality or capacity of either system, the details thereof may be contained in the application.

(2) Coordination procedure guidelines are as follows:

(i) Coordination involves two separate elements: notification and response. Both or either may be oral or in written form. To be acceptable for filing, all applications and major technical amendments must certify that coordination, including response, has been completed. The names of the licensees, permittees and applicants with which coordination was accomplished must be specified. If such notice and/or response is oral, the party providing such notice or response must supply written documentation of the communication upon request;

(ii) Notification must include relevant technical details of the proposal. At minimum, this should include, as applicable, the following:

Applicant's name and address.

Transmitting station name.

Transmitting station coordinates.

Frequencies and polarizations to be added, changed or deleted.

Transmitting equipment type, its stability, actual output power, emission designator, and type of modulation(s) (loading). Notification shall indicate if modulations lower than the values listed in the table to § 101.141(a)(3) of the Commission's rules will be used.

Transmitting antenna type(s), model, gain and, if required, a radiation pattern provided or certified by the manufacturer.

Transmitting antenna center line height(s) above ground level and ground elevation above mean sea level.

Receiving station name.

Receiving station coordinates.

Receiving antenna type(s), model, gain, and, if required, a radiation pattern provided or certified by the manufacturer.

Receiving antenna center line height(s) above ground level and ground elevation above mean sea level.

Path azimuth and distance.

Estimated transmitter transmission line loss expressed in dB.

Estimated receiver transmission line loss expressed in dB.

For a system utilizing ATPC, maximum transmit power, coordinated transmit power, and nominal transmit power.

Note:

The position location of antenna sites shall be determined to an accuracy of no less than ±1 second in the horizontal dimensions (latitude and longitude) and ±1 meter in the vertical dimension (ground elevation) with respect to the National Spatial Reference System.

(iii) For transmitters employing digital modulation techniques, the notification should clearly identify the type of modulation. Upon request, additional details of the operating characteristics of the equipment must also be furnished;

(iv) Response to notification should be made as quickly as possible, even if no technical problems are anticipated. Any response to notification indicating potential interference must specify the technical details and must be provided to the applicant, in writing, within the 30-day notification period. Every reasonable effort should be made by all applicants, permittees and licensees to eliminate all problems and conflicts. If no response to notification is received within 30 days, the applicant will be deemed to have made reasonable efforts to coordinate and may file its application without a response;

(v) The 30-day notification period is calculated from the date of receipt by the applicant, permittee, or licensee being notified. If notification is by mail, this date may be ascertained by:

(A) The return receipt on certified mail;

(B) The enclosure of a card to be dated and returned by the recipient; or

(C) A conservative estimate of the time required for the mail to reach its destination. In the last case, the estimated date when the 30-day period would expire should be stated in the notification.

(vi) An expedited prior coordination period (less than 30 days) may be requested when deemed necessary by a notifying party. The coordination notice should be identified as “expedited” and the requested response date should be clearly indicated. However, circumstances preventing a timely response from the receiving party should be accommodated accordingly. It is the responsibility of the notifying party to receive written concurrence (or verbal, with written to follow) from affected parties or their coordination representatives.

(vii) All technical problems that come to light during coordination must be resolved unless a statement is included with the application to the effect that the applicant is unable or unwilling to resolve the conflict and briefly the reason therefor;

(viii) Where a number of technical changes become necessary for a system during the course of coordination, an attempt should be made to minimize the number of separate notifications for these changes. Where the changes are incorporated into a completely revised notice, the items that were changed from the previous notice should be identified. When changes are not numerous or complex, the party receiving the changed notification should make an effort to respond in less than 30 days. When the notifying party believes a shorter response time is reasonable and appropriate, it may be helpful for that party to so indicate in the notice and perhaps suggest a response date;

(ix) If, after coordination is successfully completed, it is determined that a subsequent change could have no impact on some parties receiving the original notification, these parties must be notified of the change and of the coordinator's opinion that no response is required;

(x) Applicants, permittees and licensees should supply to all other applicants, permittees and licensees within their areas of operations, the name, address and telephone number of their coordination representatives. Upon request from coordinating applicants, permittees and licensees, data and information concerning existing or proposed facilities and future growth plans in the area of interest should be furnished unless such request is unreasonable or would impose a significant burden in compilation;

(xi) Parties should keep other parties with whom they are coordinating advised of changes in plans for facilities previously coordinated. If applications have not been filed 6 months after coordination was initiated, parties may assume that such frequency use is no longer desired unless a second notification has been received within 10 days of the end of the 6 month period. Renewal notifications are to be sent to all originally notified parties, even if coordination has not been successfully completed with those parties; and

(xii) Any frequency reserved by a licensee for future use in the bands subject to this part must be released for use by another licensee, permittee or applicant upon a showing by the latter that it requires an additional frequency and cannot coordinate one that is not reserved for future use.

(e) Where frequency conflicts arise between co-pending applications in the Private Operational Fixed Point-to-Point Microwave, Common Carrier Fixed Point-to-Point Microwave and Local Television Transmission Services, it is the obligation of the later filing applicant to amend his application to remove the conflict, unless it can make a showing that the conflict cannot be reasonably eliminated. Where a frequency conflict is not resolved and no showing is submitted as to why the conflict cannot be resolved, the Commission may grant the first filed application and dismiss the later filed application(s) after giving the later filing applicant(s) 30 days to respond to the proposed action.

(f)(1) Coordination and information sharing between MVDDS and NGSO FSS licensees in the 12.2 GHz to 12.7 GHz band. Prior to the construction or addition of an MVDDS transmitting antenna in this frequency band, the MVDDS licensee shall provide notice of intent to construct the proposed antenna site to NGSO FSS licensees operating in the 12.2-12.7 GHz frequency band and maintain an Internet web site of all existing transmitting sites and transmitting antennas that are scheduled for operation within one year including the “in service” dates. In addition to the location of a proposed new transmitting antenna, MVDDS licensees shall provide to the NGSO FSS licensees a technical description of the operating characteristics of the proposed transmission facility. At a minimum, the following information must be included in each notification:

(i) Name of MVDDS licensee;

(ii) Geographic location (including NAD83 coordinates) of proposed MVDDS transmitting antenna;

(iii) Maximum EIRP per 24 MHz;

(iv) Height above average terrain of the transmitting antenna;

(v) Type of antenna to be utilized;

(vi) Main beam azimuth and altitude orientation for the proposed transmitting antenna;

(vii) Theoretically modeled antenna radiation pattern;

(viii) Type(s) of emissions, and;

(ix) Description of the proposed service area.

(2) If the proposed MVDDS antenna site does not meet the minimum spacing requirements on the date of original notification or on subsequent annual anniversary dates of non-operation as set forth in § 101.129, then the MVDDS licensee shall not construct the proposed transmission facility unless all NGSO FSS licensees having active subscribers within the minimum separation distance agree to a shorter spacing. Nothing in this section shall preclude MVDDS and NGSO FSS licensees from agreeing to accept the siting of new MVDDS transmitting antennas that do no meet the minimum distance set forth in § 101.129. Incumbent point-to-point licensees' (those not licensed as MVDDS) facilities are to be operated in the band 12,200-12,700 MHz following the procedures, technical standards, and requirements of § 101.105 in order to protect stations providing Direct Broadcast Satellite Service.

(g) Licensees operating in Basic Trading Areas authorized in the Local Multipoint Distribution Service. (1) When the transmitting facilities in a Basic Trading Area (BTA) are to be operated in the bands 29,100-29,250 MHz and 31,000-31,300 MHz and the facilities are located within 20 kilometers of the boundaries of a BTA, each licensee must complete the frequency coordination process of paragraph (d)(2) of this section with respect to neighboring BTA licensees that may be affected by its operations prior to initiating service. In addition, all licensed transmitting facilities operating in the bands 31,000-31,075 MHz and 31,225-31,300 MHz and located within 20 kilometers of neighboring facilities must complete the frequency coordination process of paragraph (d)(2) of this section with respect to such authorized operations before initiating service.

(2) Response to notification should be made as quickly as possible, even if no technical problems are anticipated. Any response to notification indicating potential interference must specify the technical details and must be provided to the applicant, either electronically or in writing, within the 30-day notification period. Every reasonable effort should be made by all licensees to eliminate all problems and conflicts. If no response to notification is received within 30 days, the licensee will be deemed to have made reasonable efforts to coordinate and commence operation without a response. The beginning of the 30-day period is determined pursuant to paragraph (d)(2)(v) of this section.

(h) Special requirements for operations in the band 29,100-29,250 MHz. (1)(i) Local Multipoint Distribution Service (LMDS) receive stations operating on frequencies in the 29,100-29,250 MHz band within a radius of 75 nautical miles of the geographic coordinates provided by a non-GSO-MSS licensee pursuant to § 101.113(c)(2) or (c)(3)(i) (the “feeder link earth station complex protection zone”) shall accept any interference caused to them by such earth station complexes and shall not claim protection from such earth station complexes.

(ii) LMDS licensees operating on frequencies in the 29,100-29,250 MHz band outside a feeder link earth station complex protection zone shall cooperate fully and make reasonable efforts to resolve technical problems with the non-GSO MSS licensee to the extent that transmissions from the non-GSO MSS operator's feeder link earth station complex interfere with an LMDS receive station.

(2) No more than 15 days after the release of a public notice announcing the commencement of LMDS auctions, feeder link earth station complexes to be licensed pursuant to § 25.257 of this chapter shall be specified by a set of geographic coordinates in accordance with the following requirements: no feeder link earth station complex may be located in the top eight (8) metropolitan statistical areas (MSAs), ranked by population, as defined by the Office of Management and Budget as of June 1993, using estimated populations as of December 1992; two (2) complexes may be located in MSAs 9 through 25, one of which must be Phoenix, AZ (for a complex at Chandler, AZ); two (2) complexes may be located in MSAs 26 to 50; three (3) complexes may be located in MSAs 51 to 100, one of which must be Honolulu, Hawaii (for a complex at Waimea); and the three (3) remaining complexes must be located at least 75 nautical miles from the borders of the 100 largest MSAs or in any MSA not included in the 100 largest MSAs. Any location allotted for one range of MSAs may be taken from an MSA below that range.

(3)(i) Any non-GSO MSS licensee may at any time specify sets of geographic coordinates for feeder link earth station complexes with each earth station contained therein to be located at least 75 nautical miles from the border of the 100 largest MSAs.

(ii) For purposes of paragraph (h)(3)(i) of this section, non-GSO MSS feeder link earth station complexes shall be entitled to accommodation only if the affected non-GSO MSS licensee preapplies to the Commission for a feeder link earth station complex or certifies to the Commission within sixty days of receiving a copy of an LMDS application that it intends to file an application for a feeder link earth station complex within six months of the date of receipt of the LMDS application.

(iii) If said non-GSO MSS licensee application is filed later than six months after certification of the Commission, the LMDS and non-GSO MSS entities shall still cooperate fully and make reasonable efforts to resolve technical problems, but the LMDS licensee shall not be obligated to re-engineer its proposal or make changes to its system.

(4) LMDS licensees or applicants proposing to operate hub stations on frequencies in the 29,100-29,250 MHz band at locations outside of the 100 largest MSAs or within a distance of 150 nautical miles from a set of geographic coordinates specified under paragraphs (h)(2) or (h)(3)(i) of this section shall serve copies of their applications on all non-GSO MSS applicants, permittees or licensees meeting the criteria specified in § 25.257(a). Non-GSO MSS licensees or applicants shall serve copies of their feeder link earth station applications, after the LMDS auction, on any LMDS applicant or licensee within a distance of 150 nautical miles from the geographic coordinates that it specified under § 101.113(c)(2) or (c)(3)(i). Any necessary coordination shall commence upon notification by the party receiving an application to the party who filed the application. The results of any such coordination shall be reported to the Commission within sixty days. The non-GSO MSS earth station licensee shall also provide all such LMDS licensees with a copy of its channel plan.

§ 101.105 Interference protection criteria.

(a) The interference protection criteria for fixed stations subject to this part are as follows:

(1) To long-haul analog systems, employing frequency modulated radio and frequency division multiplexing to provide multiple voice channels, the allowable interference level per exposure:

(i) Due to co-channel sideband-to-sideband interference must not exceed 5 pwpO (Picowatts of absolute noise power psophometrically weighted (pwpO), appearing in an equivalent voice band channel of 300-3400 Hz); or

(ii) Due to co-channel carrier-beat interference must not exceed 50 pwpO.

(2) To short-haul analog systems employing frequency modulated radio and frequency division multiplexing to provide multiple voice channels, the allowable interference level per exposure:

(i) Due to co-channel sideband-to-sideband interference must not exceed 25 pwpO except in the 952-960 MHz band interference into single link fixed relay and control stations must not exceed 250 pwpO per exposure; or

(ii) Due to co-channel carrier-beat interference must not exceed 50 pwpO except in the 952-960 MHz band interference into single link fixed relay and control stations must not exceed 1000 pwpO per exposure.

(3) FM-TV. In analog systems employing frequency modulated radio that is modulated by a standard, television (visual) signal, the allowable interference level per exposure may not exceed the levels which would apply to long-haul or short-haul FM-FDM systems, as outlined in paragraphs (b) (1) and (2) of this section, having a 600-1200 voice channel capacity.

(4) 12.2-12.7 GHz band. (i) To accommodate co-primary NGSO FSS earth stations in the 12.2-12.7 GHz band, the PFD of an MVDDS transmitting system must not exceed −135 dBW/m

2 in any 4 kHz band at a reference point at the surface of the earth at a distance greater than 3 kilometers from the MVDDS transmitting antenna.

(ii) To accommodate co-primary Direct Broadcast Satellite Service earth stations, an MVDDS transmitting system must not exceed the EPFD levels specified in paragraph (a)(4)(ii)(B) of this section at any DBS subscriber location in accordance with the procedures listed in § 101.1440 of this part.

(A) Definition of equivalent power flux density: The equivalent power flux density (EPFD) is the power flux density produced at a direct broadcast service (DBS) receive earth station, taking into account shielding effects and the off-axis discrimination of the receiving antenna assumed to be pointing at the appropriate DBS satellite(s) from the transmitting antenna of a multichannel video distribution and data service (MVDDS) transmit station. The EPFD in dBW/m

2 in the reference bandwidth is calculated using the following formula:

Where:

P out = Total output power of the MVDDS transmitter (watts) into antenna

Gm ( θ m , φ m = Gain of the MVDDS antenna in the direction of the DBS earth station

G e ( θ e , φ e = Gain of the earth station in the direction of the MVDDS antenna

I = Interference scaling factor for the earth station (1 dB for MVDDS transmitters employing the modulation discussed in Section 3.1.5 of the MITRE Report ( i.e., a QPSK modulated signal passed through a square-root raised cosine filter). For other modulation and filtering schemes, the interference scaling factor can be measured using the procedures described in Appendix A of the MITRE Report available at http://www.fcc.gov/oet/info/mitrereport/mitrereport_4_01.pdf ).

G e, max = Maximum gain of the DBS earth station

d = the distance between the MVDDS transmitting antenna and the DBS earth station (meters)

(B) Regional equivalent power flux density levels:

( 1 ) −168.4 dBW/m

2 /4kHz in the Eastern region consisting of the District of Columbia and the following states: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, West Virginia, Kentucky, Tennessee, North Carolina, South Carolina, Georgia, Alabama, Mississippi, Louisiana, and Florida;

( 2 ) −169.8 dBW/m

2 /4kHz in the Midwestern region consisting of the following states: Ohio, Michigan, Indiana, Wisconsin, Illinois, Minnesota, Iowa, Missouri, Arkansas, South Dakota, Nebraska, Kansas, Oklahoma, and Texas;

( 3 ) −171.0 dBW/m

2 /4kHz in the Southwestern region consisting of the following states: Wyoming, Colorado, New Mexico, Utah, Arizona, Nevada, and California (south of 37° North Latitude);

( 4 ) −172.1 dBW/m

2 /4kHz in the Northwestern region consisting of the following states: Washington, Oregon, California (north of 37° North Latitude), Idaho, Montana, North Dakota, Alaska, and Hawaii.

(iii) Except for public safety entities, harmful interference protection from MVDDS stations to incumbent point-to-point 12 GHz fixed stations is not required. Incumbent point-to-point private operational fixed 12 GHz stations, except for public safety entities, are required to protect MVDDS stations under the process described in § 101.103(d) of this part.

(5) 71,000-76,000 MHz; 81,000-86,000 MHz. In these bands the following interference criteria shall apply:

(i) For receivers employing digital modulation: based upon manufacturer data and following TSB 10-F or other generally acceptable good engineering practice, for each potential case of interference a threshold-to-interference ratio (T/I) shall be determined that would cause 1.0 dB of degradation to the static threshold of the protected receiver. For the range of carrier power levels (C) between the clear-air (unfaded) value and the fully-faded static threshold value, in no case shall interference cause C/I to be less than the T/I so determined unless it can be shown that the availability of the affected receiver would still be acceptable despite the interference.

(ii) For receivers employing analog modulation: manufacturer data or industry criteria will specify a baseband signal-to-noise requirement (S/N) of the receiver that will result in acceptable signal quality for continuous operation. Following TSB 10-F or other generally acceptable good engineering practice, for each potential case of interference a C/I objective shall be calculated to ensure that this S/N will not be degraded by more than 1.0 dB. For the range of carrier power levels (C) between the clear-air (unfaded) value and the fully-faded threshold value, in no case shall interference cause the C/I to be less than the objective so determined unless it can be shown that the signal quality and availability of the affected receiver would still be acceptable despite the interference.

(6) 92,000-94,000 MHz; 94,100-95,000 MHz. In these bands prior links shall be protected to a threshold-to-interference ratio (T/I) level of 1.0 dB of degradation to the static threshold of the protected receiver. Any new link shall not decrease a previous link's desired-to-undesired (D/U) signal ratio below a minimum of 36 dB, unless the earlier link's licensee agrees to accept a lower D/U.

(7) All stations operating under this part must protect the radio quiet zones as required by § 1.924 of this chapter. Stations authorized by competitive bidding are cautioned that they must receive the appropriate approvals directly from the relevant quiet zone entity prior to operating.

(b) In addition to the requirements of paragraph (a) of this section the adjacent channel interference protection criteria to be afforded, regardless of system length, or type of modulation, multiplexing, or frequency band, must be such that the interfering signal does not produce more than 1.0 dB degradation of the practical threshold of the protected receiver. The “practical threshold” of the protected receiver can be based upon the definition in TSB 10, referenced in paragraph (c) of this section, or upon alternative generally acceptable good engineering standards.

(c) Applying the criteria. (1) Guidelines for applying the interference protection criteria for fixed stations subject to this part are specified in the Telecommunications Industry Association's Telecommunications Systems Bulletin TSB 10, “Interference Criteria for Microwave Systems” (TSB 10). Other procedures that follow generally acceptable good engineering practices are also acceptable to the Commission.

(2) If TSB 10 guidelines cannot be used, the following interference protection criteria may be used by calculating the ratio in dB between the desired (carrier signal) and the undesired (interfering) signal (C/I ratio) appearing at the input to the receiver under investigation (victim receiver). Except as provided in § 101.147 where the applicant's proposed facilities are of a type not included in paragraphs (a) and (b) of this section or where the development of the carrier-to-interference (C/I) ratio is not covered by generally acceptable procedures, or where the applicant does not wish to develop the carrier-to-interference ratio, the applicant must, in the absence of criteria or a developed C/I ratio, employ the following C/I protection ratios:

(i) Co-Channel Interference. Both side band and carrier-beat, applicable to all bands; the existing or previously authorized system must be afforded a carrier to interfering signal protection ratio of at least 90 dB, except in the 952-960 MHz band where it must be 75dB, and in the 71,000-76,000 MHz and 81,000-86,000 MHz bands where the criteria in paragraph (a)(5) of this section applies, and in the 92,000-94,000 MHz and 94,100-95,000 MHz bands, where the criteria in paragraph (a)(6) of this section applies; or

(ii) Adjacent Channel Interference. Applicable to all bands; the existing or previously authorized system must be afforded a carrier to interfering signal protection ratio of at least 56 dB, except in the 71,000-76,000 MHz and 81,000-86,000 MHz bands where the criteria in paragraph (a)(5) of this section applies, and in the 92,000-94,000 MHz and 94,100-95,000 MHz bands, where the criteria in paragraph (a)(6) of this section applies.

(3) Applicants for frequencies listed in § 101.147(b)(1) through (4) must make the following showings that protection criteria have been met over the entire service area of existing systems. Such showings may be made by the applicant or may be satisfied by a statement from a frequency coordinator.

(i) For site-based multiple address stations in the 928-929/952-960 MHz and the 932-932.5/941-941.5 MHz bands, a statement that the proposed system complies with the following co-channel separations from all existing stations and pending applications:

Fixed-to-fixed—145 km;

Fixed-to-mobile—113 km;

Mobile-to-mobile—81 km

Note to paragraph ( c )(3)( i ):

Multiple address systems employing only remote stations will be treated as mobile for the purposes of determining the appropriate separation. For mobile operation, the mileage is measured from the reference point specified on the license application. For fixed operation on subfrequencies in accordance with § 101.147 the mileage also is measured from the reference point specified on the license application.

(ii) In cases where the geographic separation standard in paragraph (c)(3)(i) of this section is not followed, an engineering analysis must be submitted to show the coordination of the proposed assignment with existing systems located closer than those standards. The engineering analyses will include:

(A) Specification of the interference criteria and system parameters used in the interference study;

(B) Nominal service areas of each system included in the interference analysis;

(C) Modified service areas resulting from the proposed system. The propagation models used to establish the service boundary limits must be specified and any special terrain features considered in computing the interference impact should be described; and

(D) A statement that all parties affected have agreed to the engineering analysis and will accept the calculated levels of interference.

(iii) MAS EA licensees shall provide protection in accordance with § 101.1333.

(4) Multiple address systems operating on subfrequencies in accordance with § 101.147 that propose to operate master stations at unspecified locations must define the operating area by a radius about a geographical coordinate and describe how interference to co-channel users will be controlled.

(5) Multiple address frequencies in the 956.25-956.45 MHz bands may be assigned for use by mobile master stations on a primary basis. Multiple address frequencies in the 941.0-941.5 MHz bands that are licensed on a site-by-site basis and the 952 MHz bands may be assigned for use by primary mobile master stations on a case-by-case basis if the 956.25-956.45 MHz frequencies are unavailable. Multiple address mobile (master and remote) operation is permitted on frequencies licensed by geographic area subject to the interference protection criteria set forth in § 101.1333, i.e., adjacent channel site-based licensees and co-channel operations in adjacent EAs. Mobile operation in the 959.85-960 MHz band is not permitted.

(6) Each application for new or modified nodal station on channels numbered 4A, 4B, 7, 9, and 19/20 in the 10.6 GHz band must demonstrate that all existing co-channel stations are at least 56 kilometers from the proposed nodal station site. Applicants for these channels must certify that all licensees and applicants for stations on the adjacent channels within 56 kilometers of the proposed nodal station have been notified of the proposed station and do not object. Alternatively, or if one of the affected adjacent channel interests does object, the applicant may show that all affected adjacent channel parties are provided a C/I protection ratio of 0 dB. An applicant proposing to operate at an AAT greater than 91 meters must reduce its EIRP in accordance with the following table; however, in no case may EIRP exceed 70 dBm on the 10.6 GHz channels:

AAT (meters)

EIRP dBm

Above 300

+ 38

251 to 300

41

201 to 250

43

151 to 200

49

101 to 150

55

100 and below

85

(7) Each application for new or modified nodal station on channels numbered 21, 22, 23, and 24 in the 10.6 GHz band must include an analysis of the potential for harmful interference to all other licensed and previously applied for co-channel and adjacent channel stations located within 80 kilometers of the location of the proposed station. The criteria contained in § 101.103(d)(2) must be used in this analysis. Applicants must certify that copies of this analysis have been served on all parties which might reasonably be expected to receive interference above the levels set out in § 101.103(d)(2) within 5 days of the date the subject application is filed with the Commission.

(8) If the potential interference will exceed the prescribed limits, a statement shall be submitted with the application for new or modified stations to the effect that all parties have agreed to accept the higher level of interference.

(d) Effective August 1, 1985, when a fixed station that conforms to the technical standards of this subpart (or, in the case of the 12,200-12,700 MHz band, for an incumbent non-MVDDS station or a direct broadcast satellite station) receives or will receive interference in excess of the levels specified in this section as a result of an existing licensee's use of non-conforming equipment authorized between July 20, 1961 and July 1, 1976, and the interference would not result if the interfering station's equipment complied with the current technical standards, the licensee of the non-conforming station must take whatever steps are necessary to correct the situation up to the point of installing equipment which fully conforms to the technical standards of this subpart. In such cases, if the engineering analysis demonstrates that:

(1) The conforming station would receive interference from a non-conforming station in excess of the levels specified in this section; and

(2) The interference would be eliminated if the non-conforming equipment were replaced with equipment which complies with the standards of this subpart, the licensee (or prospective licensee) of the station which would receive interference must provide written notice of the potential interference to both the non-conforming licensee and the Commission's office in Gettysburg, PA. The non-conforming licensee must make all required equipment changes within 180 days from the date of official Commission notice informing the licensee that it must upgrade its equipment, unless an alternative solution has been agreed to by all parties involved in the interference situation. If a non-conforming licensee fails to make all required changes within the specified period of time, the Commission may require the licensee to suspend operation until the changes are completed.

(e) Interference dispute resolution procedures. Should a licensee licensed under this part receive harmful interference from another licensee licensed under this chapter, the parties involved shall comply with the dispute resolution procedures set forth herein:

(1) The licensee experiencing the harmful interference shall notify the licensee believed to be causing the harmful interference and shall supply information describing its problem and supporting its claim;

(2) Upon receipt of the harmful interference notice, the licensee alleged to be causing the harmful interference shall respond immediately and make every reasonable effort to identify and resolve the conflict; and

(3) Licensees are encouraged to resolve the harmful interference prior to contacting the Commission.

§ 101.107 Frequency tolerance.

(a) The carrier frequency of each transmitter authorized in these services must be maintained within the following percentage of the reference frequency except as otherwise provided in paragraph (b) of this section or in the applicable subpart of this part (unless otherwise specified in the instrument of station authorization the reference frequency will be deemed to be the assigned frequency):

Frequency (MHz)

Frequency tolerance (percent)

928 to 929 5

0.0005

932 to 932.5

0.00015

932.5 to 935

0.00025

941 to 941.5

0.00015

941.5 to 944

0.00025

952 to 960 5

0.0005

1,850 to 1,990

0.002

2,110 to 2,200

0.001

2,450 to 2,500 1

0.001

3,700 to 4,200 1

0.005

5,925 to 6,875 1

0.005

6,875 to 7,125 1

0.005

10,550 to 11,700 1 2

0.005

11,700 to 12,200 1

0.005

12,200 to 13,250 4

0.005

14,200 to 14,400

0.03

17,700 to 18,820 3

0.003

18,820 to 18,920 3

0.001

928 to 929 5

0.0005

18,920 to 19,700 3

0.003

19,700 to 27,500 4 7

0.001

29,100 to 29,250

0.001

31,000 to 31,300 6

0.001

31,300 to 40,000 4

0.03

71,000 to 76,000 8

81,000 to 86,000 8

92,000 to 95,000 8

1 Applicable only to common carrier LTTS stations. Tolerance for 2450-2500 MHz is 0.005%. Beginning Aug. 9, 1975, this tolerance will govern the marketing of LTTS equipment and the issuance of all such authorizations for new radio equipment. Until that date new equipment may be authorized with a frequency tolerance of .03% in the frequency range 2,200 to 10,500 MHz and .05% in the range 10,500 MHz to 12,200 MHz, and equipment so authorized may continue to be used for its life provided that it does not cause interference to the operation of any other licensee. Beginning March 1, 2005, new LTTS operators will not be licensed and existing LTTS licensees will not be renewed in the 11.7-12.2 GHz band.

2 See subpart G of this part for the stability requirements for transmitters used in the Digital Electronic Message Service.

3 Existing type accepted equipment with a frequency tolerance of ±0.03% may be marketed until December 1, 1988. Equipment installed and operated prior to December 1, 1988 may continue to operate after that date with a minimum frequency tolerance of ±0.03%. However, the replacement of equipment requires that the current tolerance be met.

4 Applicable to private operational fixed point-to-point microwave and stations providing MVDDS.

5 For private operational fixed point-to-point microwave systems, with a channel greater than or equal to 50 KHz bandwidth, ±0.0005%; for multiple address master stations, regardless of bandwidth, ±0.00015%; for multiple address remote stations with 12.5 KHz bandwidths, ±0.00015%; for multiple address remote stations with channels greater than 12.5 KHz bandwidth, ±0.0005%.

6 For stations authorized prior to March 11, 1997, transmitter tolerance shall not exceed 0.03%.

7 The frequency tolerance for stations authorized on or before April 1, 2005 is 0.03%. Existing licensees and pending applicants on that date may continue to operate after that date with a frequency tolerance of 0.03%, provided that it does not cause harmful interference to the operation of any other licensee. For analog systems, if the channel bandwidth is greater than 30 MHz up to 50 MHz, the frequency tolerance standard will be 0.03%; if the channel bandwidth is 30 MHz or less, then the frequency tolerance standard will be 0.003%. This analog standard is conditional provided that harmful interference is not caused to digital stations operating within the 0.001% tolerance standards. If harmful interference is caused to stations operating with the more stringent standard, the onus shall be on the operators with the less stringent parameters to develop an engineering solution to the problem. For exceptions, see § 101.147 and § 101.507.

8 Equipment authorized to be operated in the 71,000-76,000 MHz, 81,000-86,000 MHz, 92,000-94,000 MHz and 94,100-95,000 MHz bands is exempt from the frequency tolerance requirement noted in the table of paragraph (a) of this section.

(b) Heterodyne microwave radio systems may be authorized at a somewhat less restrictive frequency tolerance (up to .01 percent) to compensate for frequency shift caused by numerous repeaters between base band signal insertion. Where such relaxation is sought, applicant must provide all calculations and indicate the desired tolerance over each path. In such instances the radio transmitters and receivers used must individually be capable of complying with the tolerance specified in paragraph (a) of this section. Heterodyne operation is restricted to channel bandwidth of 10 MHz or greater.

(c) As an additional requirement in any band where the Commission makes assignments according to a specified channel plan, provisions must be made to prevent the emission included within the occupied bandwidth from radiating outside the assigned channel at a level greater than that specified in § 101.111.

§ 101.109 Bandwidth.

(a) Each authorization issued pursuant to these rules will show, as the emission designator, a symbol representing the class of emission which must be prefixed by a number specifying the necessary bandwidth. This figure does not necessarily indicate the bandwidth actually occupied by the emission at any instant. In those cases where part 2 of this chapter does not provide a formula for the computation of the necessary bandwidth, the occupied bandwidth may be used in the emission designator.

(b) Stations in this service will be authorized any type of emission, method of modulation, and transmission characteristic, consistent with efficient use of the spectrum and good engineering practice, except that Type B, damped-wave emission will not be authorized.

(c) The maximum bandwidth which will be authorized per frequency assigned is set out in the table that follows. Regardless of the maximum authorized bandwidth specified for each frequency band, the Commission reserves the right to issue a license for less than the maximum bandwidth if it appears that a lesser bandwidth would be sufficient to support an applicant's intended communications.

Frequency band (MHz)

Maximum authorized bandwidth

928 to 929

25 kHz 1 5 6

932 to 932.5, 941 to 941.5

12.5 kHz 1 5 6

932.5 to 935, 941.5 to 944

200 kHz 1

952 to 960

200 KHz 1 5 6

1,850 to 1,990

10 MHz 1

2,110 to 2,130

3.5 MHz

2,130 to 2,150

800 or 1600 KHz 1

2,150 to 2,160

10 MHz

2,160 to 2,180

3.5 MHz

2,180 to 2,200

800 or 1600 KHz 1

2,450 to 2,483.5

625 KHz 2

2,483.5 to 2,500

800 KHz

3,700 to 4,200

20 MHz

5,925 to 6,425

1 60

6,425 to 6,525

25 MHz

6,525 to 6,875

30 MHz. 1

6,875 to 7,125

25 MHz 1

10,550 to 10,680

5 MHz 1

10,700 to 11,700

1 80

12,200 to 12,700 8

500 megahertz

12,700 to 13,150

50 MHz

13,200 to 13,250

25 MHz

17,700 to 18,140

220 MHz 1

18,140 to 18,142

2 MHz

18,142 to 18,580

6 MHz

18,580 to 18,820

20 MHz 1

18,820 to 18,920

10 MHz

18,920 to 19,160

20 MHz 1

19,160 to 19,260

10 MHz

19,260 to 19,700

220 MHz 1

21,200 to 23,600

50 MHz 1 4

24,250 to 25,250

40 MHz 7

29,100 to 29,250

150 MHz

31,000 to 31,075

75 MHz

31,075 to 31,225

150 MHz

31,225 to 31,300

75 MHz

71,000 to 76,000

5000 MHz

81,000 to 86,000

5000 MHz

92,000 to 95,000

( 3 )

1 The maximum bandwidth that will be authorized for each particular frequency in this band is detailed in the appropriate frequency table in § 101.147. If contiguous channels are aggregated in the 928-928.85/952-952.85/956.25-956.45 MHz, the 928.85-929/959.85-960 MHz, or the 932-932.5/941-941.5 MHz bands, then the bandwidth may exceed that which is listed in the table.

2 1250 KHz, 1875 KHz, or 2500 KHz on a case-by-case basis.

3 To be specified in authorization. For the band 92 to 95 GHz, maximum bandwidth is licensed in one segment of 2 GHz from 92-94 GHz and one 0.9 GHz segment from 94.1 to 95 GHz, or the total of the loaded band if smaller than the assigned bandwidth.

4 For exceptions, see § 101.147(s).

5 A 12.5 kHz bandwidth applies only to frequencies listed in § 101.147(b)(1) through (4).

6 For frequencies listed in § 101.147(b)(1) through (4), consideration will be given on a case-by-case basis to authorizing bandwidths up to 50 kHz.

7 For channel block assignments in the 24,250-25,250 MHz band, the authorized bandwidth is equivalent to an unpaired channel block assignment or to either half of a symmetrical paired channel block assignment. When adjacent channels are aggregated, equipment is permitted to operate over the full channel block aggregation without restriction.

Note to footnote 7: Unwanted emissions shall be suppressed at the aggregate channel block edges based on the same roll-off rate as is specified for a single channel block in § 101.111(a)(1) or in § 101.111(a)(2)(ii) and (iii) as appropriate.

8 For incumbent private operational fixed point-to-point stations in this band (those not licensed as MVDDS), the maximum bandwidth shall be 20 MHz.

§ 101.111 Emission limitations.

(a) The mean power of emissions must be attenuated below the mean output power of the transmitter in accordance with the following schedule:

(1) When using transmissions other than those employing digital modulation techniques:

(i) On any frequency removed from the assigned frequency by more than 50 percent up to and including 100 percent of the authorized bandwidth: At least 25 decibels;

(ii) On any frequency removed from the assigned frequency by more than 100 percent up to and including 250 percent of the authorized bandwidth: At least 35 decibels;

(iii) On any frequency removed from the assigned frequency by more than 250 percent of the authorized bandwidth: At least 43 + 10 Log 10 (mean output power in watts) decibels, or 80 decibels, whichever is the lesser attenuation.

(2) When using transmissions employing digital modulation techniques (see § 101.141(b)) in situations not covered in this section:

(i) For operating frequencies below 15 GHz, in any 4 KHz band, the center frequency of which is removed from the assigned frequency by more than 50 percent up to and including 250 percent of the authorized bandwidth: As specified by the following equation but in no event less than 50 decibels:

A = 35 + 0.8(P −50) + 10 Log10 B. (Attenuation greater than 80 decibels or to an absolute power of less than −13 dBm/1MHz is not required.) where:

A = Attenuation (in decibels) below the mean output power level.

P = Percent removed from the center frequency of the transmitter bandwidth.

B = Authorized bandwidth in MHz.

Note:

MVDDS operations in the 12.2-12.7 GHz band shall use 24 megahertz for the value of B in the emission mask equation set forth in this section. The emission mask limitation shall only apply at the 12.2-12.7 GHz band edges and does not restrict MVDDS channelization bandwidth within the band.

(ii) For operating frequencies above 15 GHz, in any 1 MHz band, the center frequency of which is removed from the assigned frequency by more than 50 percent up to and including 250 percent of the authorized bandwidth: As specified by the following equation but in no event less than 11 decibels:

A = 11 + 0.4(P−50) + 10 Log 10 B. (Attenuation greater than 56 decibels or to an absolute power of less than −13 dBm/1MHz is not required.)

(iii) In any 1 MHz band, the center frequency of which is removed from the assigned frequency by more than 250 percent of the authorized bandwidth: At least 43 + 10 Log 10 (the mean output power in watts) decibels, or 80 decibels, whichever is the lesser attenuation. The authorized bandwidth includes the nominal radio frequency bandwidth of an individual transmitter/modulator in block-assigned bands. Equipment licensed prior to April 1, 2005 shall only be required to meet this standard in any 4 kHz band.

(iv) The emission mask for LMDS and the 24 GHz Service shall use the equation in paragraph (a)(2)(ii) of this section and apply it only to the band edge of each block of spectrum, but not to subchannels established by licensees. The value of P in the equation is the percentage removed from the carrier frequency and assumes that the carrier frequency is the center of the actual bandwidth used. The emission mask can be satisfied by locating a carrier of the subchannel sufficiently far from the channel edges so that the emission levels of the mask are satisfied. The LMDS or 24 GHz emission mask shall use a value B (bandwidth) of 40 MHz, for all cases even in the case where a narrower subchannel is used (for instance the actual bandwidth is 10 MHz) and the mean output power used in the calculation is the sum of the output power of a fully populated channel. For block assigned channels, the out-of-band emission limits apply only outside the assigned band of operation and not within the band.

(v) The emission mask for the 71-76 GHz, 81-86 GHz, 92-94 GHz, and 94.1-95 GHz bands used in the equation in paragraph (a)(2)(ii) of this section applies only to the edge of each channel, but not to sub-channels established by licensees. The value of P in the equation is for the percentage removed from the carrier frequency and assumes that the carrier frequency is the center of the actual bandwidth used. The value of B will always be 500 MHz. In the case where a narrower sub-channel is used within the assigned bandwidth, such sub-carrier will be located sufficiently far from the channel edges to satisfy the emission levels of the mask. The mean output power used in the calculation is the sum of the output power of a fully populated channel.

(vi)(A) In order to protect Federal Earth Exploration-Satellite Service (passive), aeronautical and maritime endpoints in motion operating in the 70 and 80 GHz bands must comply with the following limits:

( 1 ) Ground-to-air transmissions shall not exceed an unwanted emission level of -38.5 dBW per 100 MHz in any portion of the 86-92 GHz passive band;

( 2 ) Air-to-air, ship-to-shore, and aerostat-to-shore transmissions shall not exceed an unwanted emission level of −29.7 dBW per 100 MHz in any portion of the 86-92 GHz passive band.

(B) Any changes to system specifications, operations, or deployment scenarios for aeronautical or maritime end points in motion shall be pre-coordinated with NTIA and affected Federal agencies, and licensees of aeronautical or maritime end points in motion must cooperate fully with any updates to the required unwanted emission limits that may result from these modifications.

(3) For Digital Termination System channels used in the Digital Electronic Message Service (DEMS) operating in the 10,550-10,680 MHz band:

(i) In any 4 KHz band, the center frequency of which is removed from the edge of the DEMS channel by up to and including 1.125 times the DEMS subchannel bandwidth: As specified by the following equation may in no event be less than 50 + 10 log 10 N decibels:

A = 50 + 0.0333(F − 0.5B) + 10 log 10 N decibels

Where:

A = Attenuation (in decibels) below means output power level contained within the DEMS channel for a given polarization.

B = Bandwidth of DEMS channel (in KHz).

F = Absolute value of the difference between the center frequency of the 4 KHz band measured and the center frequency of the DEMS channel (in KHz).

N = Number of active subchannels of the given polarization within the DEMS channel.

(ii) In any 4 KHz band within the authorized DEMS band the center frequency of which is removed from the center frequency of the DEMS channel by more than the sum of 50% of the DEMS channel bandwidth plus 1.125 times the subchannel bandwidth: As specified by the following equation but in no event less than 80 decibels:

A = 80 + 10 log 10 N decibels

(iii) In any 4 KHz band the center frequency of which is outside the authorized DEMS band: At least 43 + 10 log 10 (mean output power in watts) decibels.

(4) For DEMS channels in the 17,700-19,700 MHz band:

(i) In any 4 KHz band, the center frequency of which is removed from the frequency of the center of the DEMS channel by more than 50 percent of the DEMS channel bandwidth up to and including 50 percent plus 500 KHz: As specified by the following equation but in no event be less than 50 + 10 log 10 N decibels:

A = 50 + 0.06(F −0.5B) + 10 log 10 N decibels

Where:

A = Attenuation (in decibels) below means output power level contained within the DEMS channel for a given polarization.

B = Bandwidth of DEMS channel (in KHz).

F = Absolute value of the difference between the center frequency of the 4 KHz band measured and the center frequency of the DEMS channel (in KHz).

N = Number of active subchannels of the given polarization within the DEMS channel.

(ii) In any 4 KHz band within the authorized DEMS band, the center frequency of which is removed from the center frequency of the DEMS channel by more than the sum of 50 percent of the channel bandwidth plus 500 KHz: As specified by the following equation but in no event less than 80 decibels:

A = 80 + 10 log 10 N decibels

(iii) In any 4 KHz band the center frequency of which is outside the authorized Digital Message Service band: At least 43 + 10 log 10 (mean output power in watts) decibels.

(5) When using transmissions employing digital modulation techniques on the 900 MHz multiple address frequencies with a 12.5 KHz bandwidth, the power of any emission must be attenuated below the unmodulated carrier power of the transmitter (P) in accordance with the following schedule:

(i) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 2.5 KHz up to and including 6.25 KHz: At least 53 log 10 (fd/2.5) decibels;

(ii) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 6.25 KHz up to and including 9.5 KHz: At least 103 log 10 (fd/3.9) decibels;

(iii) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 9.5 KHz up to and including 15 KHz: At least 157 log 10 (fd/5.3) decibels; and

(iv) On any frequency removed from the center of the authorized bandwidth by a displacement frequency greater than 15 KHz: At least 50 plus 10 log 10 (P) or 70 decibels, whichever is the lesser attenuation.

(6) When using transmissions employing digital modulation techniques on the 900 MHz multiple address frequencies with a bandwidth greater than 12.5 KHz, the power of any emission must be attenuated below the unmodulated carrier power of the transmitter (P) in accordance with the following schedule:

(i) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 5 KHz up to and including 10 KHz: At least 83 log 10 (fd/5) decibels;

(ii) On any frequency removed from the center of the authorized bandwidth by a displacement frequency (fd in KHz) of more than 10 KHz up to and including 250 percent of the authorized bandwidth: At least 116 log 10 (fd/6.1) decibels or 50 plus 10 log 10 (P) or 70 decibels, whichever is the lesser attenuation; and

(iii) On any frequency removed from the center of the authorized bandwidth by more that 250 percent of the authorized bandwidth: At least 43 plus 10 log 10 (output power in watts) decibels or 80 decibels, whichever is the lesser attenuation.

(b) When an emission outside of the authorized bandwidth causes harmful interference, the Commission may, at its discretion, require greater attenuation than specified in paragraph (a) of this section.

(c) The emission of an unmodulated carrier is prohibited except for test purposes as required for proper station and system maintenance.

(d) Interference to passive sensors. These limitations are necessary to minimize the probability of harmful interference to reception in the 10.6-10.68 GHz and 31-31.3 GHz bands onboard space stations in the Earth exploration-satellite service (passive).

(1) 10.6-10.68 GHz. (i) Fixed stations are restricted to point-to-point operations, with each station supplying not more than −3 dBW of transmitter power to the antenna, producing not more than 40 dBW of EIRP, and radiating at an antenna main beam elevation angle of 20° or less. Licensees holding a valid authorization on August 6, 2015 to operate in this band may continue to operate as authorized, subject to proper license renewal. Licensees are urged to:

(A) Limit the maximum transmitter power supplied to the antenna to −15 dBW; and

(B) Employ automatic transmitter power control (ATPC).

(ii) The maximum transmitter power supplied to the antenna of stations using ATPC may be increased by a value corresponding to the ATPC range, up to a maximum of −3 dBW.

(2) 31-31.3 GHz. For fixed stations authorized after August 6, 2018, the unwanted emissions power in any 100 MHz of the 31.3-31.5 GHz band shall be limited to −38 dBW (−38 dBW/100 MHz), as measured at the input to the antenna.

§ 101.113 Transmitter power limitations.

(a) On any authorized frequency, the average power delivered to an antenna in this service must be the minimum amount of power necessary to carry out the communications desired. Application of this principle includes, but is not to be limited to, requiring a licensee who replaces one or more of its antennas with larger antennas to reduce its antenna input power by an amount appropriate to compensate for the increased primary lobe gain of the replacement antenna(s). In no event shall the average equivalent isotropically radiated power (EIRP), as referenced to an isotropic radiator, exceed the values specified below. In cases of harmful interference, the Commission may, after notice and opportunity for hearing, order a change in the effective radiated power of this station. Further, the output power of a transmitter on any authorized frequency in this service may not exceed the following:

Frequency band (MHz)

Maximum allowable EIRP 1 2

Fixed 1 2 (dBW)

Mobile (dBW)

928.0-929.0(2)

+ 17

932.0-932.5(2)

+ 17

932.5-935.0

+ 40

941.0-941.5(2)

+ 30

+ 14

941.5-944.0

+ 40

952.0-960.0(2)

+ 40

+ 14

1,850-1,990

+ 45

2,110-2,150

+ 45

2,150-2,180 3

+ 45

2,180-2,200

+ 45

2,450-2,500

+ 45

2,500-2,686

2,686-2,690

+ 45

3,700-4,200

+ 55

5,925-6,425

+ 55

6,425-6,525

+ 35

6,525-6,875

+ 55

6,875-7,125

+ 55

10,550 to 10,600 5

+ 55

10,600 to 10,680 5

+ 40

10,700-11,700

+ 55

12,200-12,700 11

+ 50

12,700-13,200 4

+ 50

13,200-13,250 4

+ 55

14,200-14,400 12

+ 45

17,700-18,600

+ 55

18,600-18,800 6

+ 35

18,800-19,700

5 + 55

21,200-23,600 10

+ 55

24,250-25,250

5 + 55

29,100-29,250

( 7 )

31,000 to 31,075 8 9

30 dBW/MHz

30 dBW/MHz

31,075 to 31,225 8 9

30 dBW/MHz

30 dBW/MHz

31,225 to 31,300 8 9

30 dBW/MHz

30 dBW/MHz

71,000-76,000 13 14

+55

+55

81,000-86,000 13 14

+55

+55

92,000-95,000

+ 55

+ 55

1 Per polarization.

2 For multiple address operations, see § 101.147. Remote alarm units that are part of a multiple address central station projection system are authorized a maximum of 2 watts.

3 When an omnidirectional antenna is authorized in the 2150-2160 MHz band, the maximum power shall be 60 dBm.

4 Also see § 101.145.

5 The output power of a DEMS System nodal transmitter shall not exceed 0.5 watt per 250 kHz. The output power of a DEMS System user transmitter shall not exceed 0.04 watt per 250 kHz. The transmitter power in terms of the watts specified is the peak envelope power of the emission measured at the associated antenna input port. The operating power shall not exceed the authorized power by more than 10 percent of the authorized power in watts at any time. Frequencies from 10,600-10,680 MHz are subject to footnote US265 in the Table of Frequency Allocations in § 2.106 of the Commission's Rules. Stations authorized prior to April 1, 2003 to exceed the 40 dBW limit may continue to operate at their authorized output power level indefinitely, provided that neither end point of the relevant link is relocated.

6 Maximum power delivered to the antenna shall not exceed −3 dBw.

7 See § 101.113(c).

8 For stations authorized prior to March 11, 1997, and for non-Local Multipoint Distribution Service stations authorized pursuant to applications refiled no later than June 26, 1998, the transmitter output power shall not exceed 0.050 watt.

9 For subscriber transceivers authorized in these bands, the EIRP shall not exceed 55 dBw or 42 dBw/MHz.

10 See § 101.147(s).

11 The EIRP for MVDDS stations is limited to 14.0 dBm per 24 MHz (−16.0 dBW per 24 MHz). Incumbent point-to-point stations may use up to + 50 dBW except for low power systems which were licensed under § 101.147(q).

12 Beginning March 1, 2005, no new LTTS operators will be licensed and no existing LTTS licensees will be renewed in the 14.2-14.4 GHz band.

13 The maximum transmitter power is limited to 3 watts (5 dBW) unless a proportional reduction in maximum authorized EIRP is required under § 101.115. The maximum transmitter power spectral density is limited to 150 mW per 100 MHz.

(b) The power of transmitters that use Automatic Transmitter Power Control shall not exceed the power input or output specified in the instrument of station authorization. The power of non-ATPC transmitters shall be maintained as near as practicable to the power input or output specified in the instrument of station authorization.

(c)(1) Transmitter power limitations. Point-to-point stations in the 29.1-29.25 GHz band for the LMDS backbone between LMDS hubs shall be limited to a maximum allowable e.i.r.p. density per carrier of 23 dBW/MHz in any one megahertz in clear air, and may exceed this limit by employment of adaptive power control in cases where link propagation attenuation exceeds the clear air value due to precipitation and only to the extent that the link is impaired.

(2) Hub transmitter EIRP spectral area, density limit. LMDS applicants shall demonstrate that, under clear air operating conditions, the maximum aggregate of LMDS transmitting hub stations in a Basic Trading Area in the 29.1-29.25 GHz band will not transmit a co-frequency hub-to-subscriber e.i.r.p. spectral area density in any azimuthal direction in excess of X dBW/(MHz-km

2 ) when averaged over any 4.375 MHz band, where X is defined in Table 1. Individual hub stations may exceed their clear air e.i.r.p.s by employment of adaptive power control in cases where link propagation attenuation exceeds the clear air value and only to the extent that the link is impaired.

(i) The e.i.r.p. aggregate spectral area density is calculated as follows:

where:

N = number of co-frequency hubs in BTA.

A = Area of BTA in km

2 .

pi = spectral power density into antenna of i-th hub (in W/MHz).

gi = gain of i-th hub antenna at zero degree elevation angle.

Each pi and gi are in the same 1 MHz within the designated frequency band.

(ii) The climate zones in Table 1 are defined for different geographic locations within the US as shown in Appendix 28 of the ITU Radio Regulations.

Table 1 1

Climate zone

e.i.r.p. Spectral Density (Clear Air) (dBW/MHz-km 2 ) 2

1

−23

2

−25

3,4,5

−26

1 LMDS system licensees in two or more BTAs may individually or collectively deviate from the spectral area density computed above by averaging the power over any 200 km by 400 km area, provided that the aggregate interference to the satellite receiver is no greater than if the spectral area density were as specified in Table 1. A showing to the Commission comparing both methods of computation is required and copies shall be served on any affected non-GSO 20/30 GHz MSS providers.

2 See § 21.1007(c)(i) for the population density of the BTA.

(3) Hub transmitter e.i.r.p. spectral area density limit at elevation angles above the horizon. LMDS applicants shall demonstrate that, under clear air operating conditions, the maximum aggregate of LMDS transmitting hub stations in a Basic Trading Area in the 29.1-29.25 GHz band will not transmit a co-frequency hub-to-subscriber e.i.r.p. spectral area density in any azimuthal direction in excess of X dBW/(MHz-km

2 ) when averaged over any 4.375 MHz band where X is defined in Table 2. Individual hub stations may exceed their clear air e.i.r.p.s by employment of adaptive power control in cases where link propagation attenuation exceeds the clear air value and only to the extent that the link is impaired.

(i) The e.i.r.p. aggregate spectral area density is calculated as follows:

where:

N = number of co-frequency hubs in BTA.

A = Area of BTA in km

2 .

e.i.r.p. (ai) = equivalent isotropic radiated spectral power density of the i-th hub (in W/MHz) at elevation angle a where a is the angle in degrees of elevation above horizon. e.i.r.p.(0°) is the hub e.i.r.p. area density at the horizon used in Section 101.113c(2). The nominal antenna pattern will be used for elevation angles between 0° and 8°, and average levels will be used for angles beyond 8°, where average levels will be calculated by sampling the antenna patterns in each 1° interval between 8° and 9015, dividing by 83.

Table 2

Elevation angle (a)

Relative e.i.r.p. density (dBW/MHz-km 2 )

0° ≤a ≤4.0°

e.i.r.p.(a) = e.i.r.p.(0°) + 20 log (sinΠ x)(1/Π x) where x = (a + 1)/7.5°.

4.0° <a ≤7.7°

e.i.r.p.(a) = e.i.r.p.(0°) - 3.85a + 7.7.

a >7.7°

e.i.r.p.(a) = e.i.r.p.(0°) - 22.

(ii) LMDS system licensees in two or more BTAs may individually or collectively deviate from the spectral area density computed above by averaging the power over any 200 km by 400 km area, provided that the aggregate interference to the satellite receiver is no greater than if the spectral area density were as specified in Table 1. A showing to the Commission comparing both methods of computation is required and copies shall be served on any affected non-GSO MSS providers.

(4) Power reduction techniques. LMDS hub transmitters shall employ methods to reduce average power levels received by non-geostationary mobile satellite receivers, to the extent necessary to comply with paragraphs (c)(1) and (c)(2) of this section, by employing the methods set forth below:

(i) Alternate polarizations. LMDS hub transmitters in the LMDS service area may employ both vertical and horizontal linear polarizations such that 50 percent (plus or minus 10 percent) of the hub transmitters shall employ vertical polarization and 50 percent (plus or minus 10 percent) shall employ horizontal polarization.

(ii) Frequency interleaving. LMDS hub transmitters in the LMDS service area may employ frequency interleaving such that 50 percent (plus or minus 10 percent) of the hub transmitters shall employ channel center frequencies which are different by one-half the channel bandwidth of the other 50 percent (plus or minus 10 percent) of the hub transmitters.

(iii) Alternative methods. As alternatives to paragraphs (c)(4)(i) and (c)(4)(ii) of this section, LMDS operators may employ such other methods as may be shown to achieve equivalent reductions in average power density received by non-GSO MSS satellite receivers.

§ 101.115 Directional antennas.

Link to an amendment published at 89 FR 33259, Apr. 29, 2024.

(a) Unless otherwise authorized upon specific request by the applicant, each station authorized under the rules of this part must employ a directional antenna adjusted with the center of the major lobe of radiation in the horizontal plane directed toward the receiving station with which it communicates: provided, however, where a station communicates with more than one point, a multi- or omni-directional antenna may be authorized if necessary. New Periscope antenna systems will not, under ordinary circumstances, be authorized.

(b) Fixed stations (other than temporary fixed stations and DEMS nodal stations) operating at 932.5 MHz or higher must employ transmitting and receiving antennas (excluding second receiving antennas for operations such as space diversity) meeting the appropriate performance Standard A indicated below, except that in areas not subject to frequency congestion, antennas meeting performance Standard B may be used, subject to the requirements set forth in paragraph (d) of this section. For frequencies with a Standard B1 and a Standard B2, in order to comply with Standard B an antenna must fully meet either Standard B1 or Standard B2. Licensees shall comply with the antenna standards table shown in this paragraph in the following manner:

(1) With either the maximum beamwidth to 3 dB points requirement or with the minimum antenna gain requirement; and

(2) With the minimum radiation suppression to angle requirement.

Antenna Standards

Frequency (MHz)

Category

Maximum beamwidth to 3 dB points 1 (included angle in degrees)

Minimum antenna gain (dbi)

Minimum radiation suppression to angle in degrees from centerline of main beam in decibels

5° to10°

10° to 15°

15° to 20°

20° to 30°

30° to 100°

100° to 140°

140° to 180°

932.5 to 935

A

14.0

n/a

n/a

6

11

14

17

20

24

B

20.0

n/a

n/a

n/a

6

10

13

15

20

941.5 to 944

A

14.0

n/a

n/a

6

11

14

17

20

24

B

20.0

n/a

n/a

n/a

6

10

13

15

20

952 to 960 2 3

A

14.0

n/a

n/a

6

11

14

17

20

24

B

20.0

n/a

n/a

n/a

6

10

13

15

20

1,850 to 2,500 4

A

5.0

n/a

12

18

22

25

29

33

39

B

8.0

n/a

5

18

20

20

25

28

36

3,700 to 4,200

A

2.7

36

23

29

33

36

42

55

55

B

2.7

36

20

24

28

32

32

32

32

B

2.2

38

21

25

29

32

35

39

45

5,925 to 6,425 5

A

2.2

38

25

29

33

36

42

55

55

B1

2.2

38

21

25

29

32

35

39

45

B2

4.1

32

15

20

23

28

29

60

60

6,525 to 6,875 5

A

2.2

38

25

29

33

36

42

55

55

B1

2.2

38

21

25

29

32

35

39

45

B2

4.1

32

15

20

23

28

29

60

60

6,875 to 7,125

A

2.2

38

25

29

33

36

42

55

55

B1

2.2

38

21

25

29

32

35

39

45

B2

4.1

32

15

20

23

28

29

60

60

10,550 to 10,680 7

A

3.5

33.5

18

24

28

32

35

55

55

B

3.5

33.5

17

24

28

32

35

40

45

10,565 to 10,615

n/a

360

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

10,630 to 10,680 8

n/a

3.5

34

20

24

28

32

35

36

36

10,700-11,700 5

A

2.2

38

25

29

33

36

42

55

55

B

3.5

33.5

17

24

28

32

35

40

45

12,200 to 13,250 9

A

1.0

n/a

23

28

35

39

41

42

50

B

2.0

n/a

20

25

28

30

32

37

47

17,700 to 18,820

A

2.2

38

25

29

33

36

42

55

55

B1

2.2

38

20

24

28

32

35

36

36

B2

3.3

33.5

18

22

29

31

35

55

55

18,920 to 19,700 10

A

2.2

38

25

29

33

36

42

55

55

B1

2.2

38

20

24

28

32

35

36

36

B2

3.3

33.5

18

22

29

31

35

55

55

21,200 to 23,600 7 11

A

3.3

33.5

18

26

26

33

33

55

55

B1

3.3

33.5

17

24

24

29

29

40

50

B2

4.5

30.5

14

19

22

24

29

52

52

24,250 to 25,250 10

A

2.8

38

25

29

33

36

42

55

60

B

2.8

38

20

24

28

32

35

36

45

31,000 to 31,300 12 13

n/a

4.0

38

n/a

n/a

n/a

n/a

n/a

n/a

n/a

B

n/a

38

20

24

28

32

35

36

36

71,000 to 76,000 (co-polar) 14

N/A

2.2

38

22

28

32

35

37

55

55

71,000 to 76,000 (cross-polar) 14

N/A

2.2

38

35

35

40

42

47

55

55

81,000 to 86,000 (co-polar) 14

N/A

2.2

38

22

28

32

35

37

55

55

81,000 to 86,000 (cross-polar) 14

N/A

2.2

38

35

35

40

42

47

55

55

92,000 to 95,000

N/A

0.6

50.0

36

40

45

50

55

55

55

1 If a licensee chooses to show compliance using maximum beamwidth to 3 dB points, the beamwidth limit shall apply in both the azimuth and the elevation planes.

2 Except for Multiple Address System frequencies listed in §§ 101.147(b)(1) through (b)(4), where omnidirectional antennas may be used.

3 Antennas used at outlying stations as part of a central protection alarm system need conform to only the following 2 standards:

(i) The minimum on-beam forward gain must be at least 10 dBi, and

(ii) The minimum front-to-back ratio must be at least 20 dB.

4 Omnidirectional antennas may be authorized in the band 2150-2160 MHz.

5 These antenna standards apply to all point-to-point stations authorized after June 1, 1997. Existing licensees and pending applicants on that date are grandfathered and need not comply with these standards.

6 These antenna standards apply to all point-to-point stations authorized on or before June 1, 1997.

7 For stations authorized or pending on April 1, 2003, the minimum radiation suppression for Category B is 35dB in the 10,550-10,680 MHz band and 36 dB in the 21,200-23,600 MHz band for discrimination angles from 100° to 180°.

8 These antenna standards apply only to DEMS User Stations licensed, in operation, or applied for prior to July 15, 1993.

9 Except for Temporary-fixed operations in the band 13200-13250 MHz with output powers less than 250 mW and as provided in § 101.147(q), and except for antennas in the MVDDS service in the band 12.2-12.7 GHz.

10 DEMS User Station antennas in this band must meet performance Standard B and have a minimum antenna gain of 34 dBi. The maximum beamwidth requirement does not apply to DEMS User Stations. DEMS Nodal Stations need not comply with these standards. Stations authorized to operate in the 24,250-25,250 MHz band do not have to meet these standards, however, the Commission may require the use of higher performance antennas where interference problems can be resolved by the use of such antennas.

11 Except as provided in § 101.147(s).

12 The minimum front-to-back ratio shall be 38 dBi.

13 Mobile, except aeronautical mobile, stations need not comply with these standards.

14 Antenna gain less than 50 dBi (but greater than or equal to 38 dBi) is permitted only with a proportional reduction in maximum authorized EIRP in a ratio of 2 dB of power per 1 dB of gain, so that the maximum allowable EIRP (in dBW) for antennas of less than 50 dBi gain becomes +55-2(50-G), where G is the antenna gain in dBi. In addition, antennas in these bands must meet the following additional standard for minimum radiation suppression: At angles of less than 5 degrees from the centerline of main beam, cross-polar discrimination must be at least 21 dB.

(c) The Commission shall require the replacement of any antenna or periscope antenna system of a permanent fixed station operating at 932.5 MHz or higher that does not meet performance Standard A specified in paragraph (c) of this section, at the expense of the licensee operating such antenna, upon a showing that said antenna causes or is likely to cause interference to (or receive interference from) any other authorized or applied for station whereas a higher performance antenna is not likely to involve such interference. Antenna performance is expected to meet the standards of paragraph (c) of this section for parallel polarization. For cases of potential interference, an antenna will not be considered to meet Standard A unless the parallel polarization performance for the discrimination angle involved meets the requirements, even if the cross-polarization performance controls the interference.

(d) In cases where passive reflectors are employed in conjunction with transmitting antenna systems, the foregoing paragraphs of this section also will be applicable. However, in such instances, the center of the major lobe of radiation from the antenna normally must be directed at the passive reflector, and the center of the major lobe of radiation from the passive reflector directed toward the receiving station with which it communicates.

(e) Periscope antennas used at an electric power facility plant area will be excluded from the requirements of paragraph (c) of this section on a case-by-case basis where technical considerations or safety preclude the use of other types of antenna systems.

(f) In the 10,700-11,700 MHz band, a fixed station may employ transmitting and receiving antennas meeting performance standard B in any area. If a Fixed Service or Fixed Satellite Service licensee or applicant makes a showing that it is likely to receive interference from such fixed station and that such interference would not exist if the fixed station used an antenna meeting performance standard A, the fixed station licensee must modify its use. Specifically, the fixed station licensee must either substitute an antenna meeting performance standard A or operate its system with an EIRP reduced so as not to radiate, in the direction of the other licensee, an EIRP in excess of that which would be radiated by a station using a Category A antenna and operating with the maximum EIRP allowed by the rules. A licensee or prior applicant using an antenna that does not meet performance Standard A may object to a prior coordination notice based on interference only if such interference would be predicted to exist if the licensee or prior applicant used an antenna meeting performance standard A.

(g) In the event harmful interference is caused to the operation of other stations, the Commission may, after notice and opportunity for hearing, order changes to be made in the height, orientation, gain and radiation pattern of the antenna system.

§ 101.117 Antenna polarization.

Except as set forth herein, stations operating in the radio services included in this part are not limited as to the type of polarization of the radiated signal that may be employed. However, in the event interference in excess of permissible levels is caused to the operation of other stations as a result of employing other than linear polarization, the Commission may order a licensee to change its system polarization to mitigate the interference. No change in polarization may be made without prior authorization from the Commission. Unless otherwise allowed, only linear polarization (horizontal and vertical) shall be used. For LMDS systems, unless otherwise authorized, system operators are permitted to use any polarization within its service area, but only vertical and/or horizontal polarization for antennas located within 20 kilometers of the outermost edge of their service area.

§ 101.125 Temporary fixed antenna height restrictions.

The overall antenna structure heights employed by mobile stations in the Local Television Transmission Service and by stations authorized to operate at temporary fixed locations may not exceed the height criteria set forth in § 17.7 of this chapter, unless in each instance, authorization for use of a specific maximum antenna height (above ground and above mean sea level) for each location has been obtained from the Commission prior to erection of the antenna. Requests for such authorization must show the inclusive dates of the proposed operation. (Complete information as to rules concerning the construction, marking and lighting of antenna structures is contained in part 17 of this chapter.)

§ 101.129 Transmitter location.

(a) The applicant must determine, prior to filing an application for a radio station authorization, that the antenna site specified therein is adequate to render the service proposed. In cases of questionable antenna locations, it is desirable to conduct propagation tests to indicate the field intensity which may be expected in the principal areas or at the fixed points of communication to be served, particularly where severe shadow problems may be expected. In considering applications proposing the use of such locations, the Commission may require site survey tests to be made pursuant to an experimental license under part 5 of this chapter. In such cases, propagation tests should be conducted in accordance with recognized engineering methods and should be made with a transmitting antenna simulating, as near as possible, the proposed antenna installation. Full data obtained from such surveys and its analysis, including a description of the methods used and the name, address and qualifications of the engineer making the survey, must be supplied to the Commission.

(b) In the 12.2-12.7 GHz band, licensees must not locate MVDDS transmitting antennas within 10 km of any qualifying NGSO FSS receiver unless mutual agreement is obtained between the MVDDS and NGSO FSS licensees. Such agreements must be retained by the licensees and made available for inspection by interested parties upon request.

(1) A qualifying NGSO FSS receiver, for the purposes of this section, is deemed to be one that is in regular use by an NGSO FSS subscriber for normal reception purposes in the 12.2-12.7 GHz band and not one for monitoring or testing purposes. In addition, qualifying receivers must either be in operation on the date or already be under construction and then operating within thirty days of the date that the MVDDS licensee notifies the NGSO FSS licensee of its intent to construct a new MVDDS transmitting antenna at a specified location.

(2) Except as provided in paragraph (b)(3) of this section, the 10 kilometer spacing requirement for each MVDDS transmitting antenna site shall not apply with respect to NGSO FSS receivers that might be installed or become operational (except for those under construction and operating within thirty days as specified in paragraph (b)(1) of this section) subsequent to the original date that the MVDDS licensee provided notice of its intention to construct a given transmission facility.

(3) In the event that a proposed MVDDS transmitting antenna for which notice has been duly given to the NGSO FSS licensees has not been placed in normal operation within one calendar year of the date of notice, then the MVDDS licensee loses the benefit of the original notice. Upon such anniversary, the MVDDS licensee must re-determine compliance with the minimum 10 kilometer spacing requirement based upon locations of qualifying NGSO FSS receivers on that anniversary date. A new determination of compliance with the spacing requirement shall be made for each succeeding anniversary of non-operation for each proposed MVDDS transmission site or additional antenna. This provision contemplates that failure to commence normal operation at a given MVDDS transmitting antenna site within one year of the date of NGSO FSS notification may require successive relocations of the proposed transmitter site in order to meet the minimum spacing distance as determined on each anniversary of non-operation.

§ 101.131 Transmitter construction and installation.

(a) The equipment at the operating and transmitting positions must be so installed and protected that it is not accessible to, or capable of being operated by, persons other than those duly authorized by the licensee.

(b) In any case where the maximum modulating frequency of a transmitter is prescribed by the Commission, the transmitter must be equipped with a low-pass or band-pass modulation filter of suitable performance characteristics. In those cases where a modulation limiter is employed, the modulation filter must be installed between the transmitter stage in which limiting is effected and the modulated stage of the transmitter.

(c) Each transmitter employed in these services must be equipped with an appropriately labeled pilot lamp or meter which will provide continuous visual indication at the transmitter when its control circuits have been placed in a condition to activate the transmitter. In addition, facilities must be provided at each transmitter to permit the transmitter to be turned on and off independently of any remote control circuits associated therewith.

(d) At each transmitter control point the following facilities must be installed:

(1) A carrier operated device which will provide continuous visual indication when the transmitter is radiating, or, in lieu thereof, a pilot lamp or meter which will provide continuous visual indication when the transmitter control circuits have been placed in a condition to activate the transmitter; and

(2) Facilities which will permit the operator to turn transmitter carrier on and off at will.

(e) Transmitter control circuits from any control point must be so installed that grounding or shorting any line in the control circuit will not cause the transmitter to radiate: provided, however, That this provision will not be applicable to control circuits of stations which normally operate with continuous radiation or to control circuits which are under the effective operational control of responsible operating personnel 24 hours per day.

§ 101.133 Limitations on use of transmitters.

(a) Transmitters licensed for operation in Common Carrier services may be concurrently licensed or used for non-common carrier communication purposes. Mobile units may be concurrently licensed or used for non-common carrier communication purposes provided that the transmitter is certificated for use in each service.

(b) Private operational fixed point-to-point microwave stations authorized in this service may communicate with associated operational-fixed stations and fixed receivers and with units of associated stations in the mobile service licensed under Private Radio Service rule parts. In addition, intercommunication is permitted with other licensed stations and with U.S. Government stations in those cases which require cooperation or coordination of activities or when cooperative use arrangements in accordance with § 101.135 are contemplated; provided, however, that where communication is desired with stations authorized to operate under the authority of a foreign jurisdiction, prior approval of this Commission must be obtained; And provided further, That the authority under which such other stations operate does not prohibit the intercommunication.

(c) Two or more persons or governmental entities eligible for private operational fixed point-to-point microwave licenses may use the same transmitting equipment under the following terms and conditions:

(1) Each licensee complies with the general operating requirements set out in this part;

(2) Each licensee is eligible for the frequency(ies) on which the facility operates; and

(3) Each licensee must have the ability to access the transmitter(s) that it is authorized to operate under the multiple licensing arrangement.

(d) LMDS subscriber transmissions. LMDS licensees shall not operate transmitters from subscriber locations in the 29.1-29.25 GHz band.

(e) Existing private operational fixed wireless licensees applying to become common carrier wireless licensees shall comply with all provisions of the Communications Act and the Commission's rules. Applicants must take all required filings, including FCC Form 601, and receive all necessary Commission approval prior to operating as a common carrier wireless licensee. The regulatory fee associated with FCC wireless application Form 601 is waived for applicants who are existing private operational fixed licensees seeking common carrier status, provided that such licensees have also complied with all other discontinuance requirements of Title II of the Act. Applicants are responsible for all other Commission regulatory fees.

§ 101.135 Shared use of radio stations and the offering of private carrier service.

Licensees of Private Operational Fixed Point-to-Point Microwave radio stations may share the use of their facilities on a non-profit basis or may offer service on a for-profit private carrier basis, subject to the following conditions and limitations:

(a) Persons or governmental entities licensed to operate radio systems pursuant to subpart H of this part on any of the private radio frequencies set out in § 101.101 may share such systems with, or provide private carrier service to, any eligible entity for licensing under this part, regardless of individual eligibility restrictions, provided that the communications being carried are permissible under § 101.603.

(b) The licensee must maintain access to and control over all facilities authorized under its license;

(c) All sharing and private carrier arrangements must be conducted pursuant to a written agreement to be kept as part of the station records; and

(d) The licensee must keep an up-to-date list of system sharers and private carrier subscribers and the basis of their eligibility under this part. Such records must be kept current and must be made available upon request for inspection by the Commission.

(e) Applicants licensed in the MAS frequencies after June 2, 2000, shall not provide service to others on a for-profit private carrier basis in the 928-928.85/952-952.85/956.25-956.45 MHz bands and the 932.25-932.5/941.25-941.5 MHz bands.

§ 101.137 Interconnection of private operational fixed point-to-point microwave stations.

Private operational fixed point-to-point microwave stations may be interconnected with facilities of common carriers subject to applicable tariffs.

§ 101.139 Authorization of transmitters.

(a) Unless specified otherwise, transmitters used in the private operational fixed and common carrier fixed point-to-point microwave and point-to-multipoint services under this part must be a type that has been approved for compliance under Supplier's Declaration of Conformity.

Note 1 to paragraph ( a ):

The verification procedure has been replaced by Supplier's Declaration of Conformity. Equipment previously authorized under subpart J of part 2 of this chapter may remain in use. See § 2.950 of this chapter.

(b) Any transmitter to be produced for use under the rules of this part may be approved under the equipment authorization procedures set forth in part 2 of this chapter.

(c) Certification for an individual transmitter may also be requested by an applicant for a station authorization, pursuant to the procedures set forth in part 2 of this chapter.

(d) A transmitter presently shown on an instrument of authorization, which operates on an assigned frequency in the 890-940 MHz band and has not received a grant of certification, may continue to be used by the licensee without certification provided such transmitter continues otherwise to comply with the applicable requirements of this chapter.

(e) Certification or Supplier's Declaration of Conformity is not required for portable transmitters operating with peak output power not greater than 250 mW. If operation of such equipment causes harmful interference the FCC may, at its discretion, require the licensee to take such corrective action as is necessary to eliminate the interference.

(f) After July 15, 1996, the manufacturer (except for export) or importation of equipment employing digital modulation techniques in the 3700-4200, 5925-6425, 6525-6875, 10,550-10,680 and 10,700-11,700 MHz bands must meet the minimum payload capacity requirements of § 101.141.

(g) After April 1, 2005, the manufacture (except for export) or importation of equipment for operation in the 21,200-23,600 MHz band must meet:

(1) The 0.001% frequency tolerance requirement for digital systems in § 101.107(a) or the 0.03-0.003% frequency tolerance for analog systems; and

(2) For equipment employing digital modulation techniques, the minimum bit rate requirements of § 101.141(a).

(h) 71,000-76,000 MHz; 81,000-86,000 MHz. For equipment employing digital modulation techniques, the minimum bit rate requirement is 0.125 bit per second per Hz.

(i) 92,000-94,000 MHz; 94,100-95,000 MHz. For equipment employing digital modulation techniques, the minimum bit rate requirement is 1.0 bit per second per Hz.

§ 101.141 Microwave modulation.

(a) Microwave transmitters employing digital modulation techniques and operating below 25.25 GHz (except for MVDDS stations in the 12,200-12,700 MHz band) must, with appropriate multiplex equipment, comply with the following additional requirements:

(1) The bit rate, in bits per second, must be equal to or greater than the bandwidth specified by the emission designator in Hertz (e.g., to be acceptable, equipment transmitting at a 20 Mb/s rate must not require a bandwidth of greater than 20 MHz), except the bandwidth used to calculate the minimum rate may not include any authorized guard band.

(i) Stations authorized prior to December 1, 1988 may install equipment after that date with no minimum bit rate. Equipment applied for or authorized prior to April 1, 2005 in the 21.2-23.6 GHz band may be installed with no minimum bit rate.

(ii) However, any digital equipment applied for after April 1, 2005 and equipment replacing existing equipment in the 21.2-23.6 GHz band must meet the bit rate standard.

(2) Equipment to be used for voice transmission placed in service, authorized, or applied for on or before June 1, 1997 in the 2110 to 2130 and 2160 to 2180 MHz bands must be capable of satisfactory operation within the authorized bandwidth to encode at least 96 voice channels. Equipment placed in service, authorized, or applied for on or before June 1, 1997 in the 3700-4200, 5925-6425 (30 MHz bandwidth), and 10,700-11,700 MHz (30 and 40 MHz bandwidths) bands must be capable of satisfactory operation within the authorized bandwidth to encode at least 1152 voice channels. These required loading levels may be reduced by a factor of 1/N provided that N transmitters may be operated satisfactorily, over the same radio path, within an authorized bandwidth less than, or equal to, the maximum authorizable bandwidth (e.g., the 1152 channel requirement may be reduced to 576 if two transmitters can be satisfactorily operated over the same path within the maximum bandwidth). Where certificated equipment is designed to operate on the same frequency in a cross polarized configuration to meet the above capacity requirements, the Commission will require, at the time additional transmitters are authorized, that both polarizations of a frequency be used before a new frequency assignment is made, unless a single transmitter installation was found to be justified by the Commission at the time it authorized the first transmitter.

(3)(i) Except as noted in paragraph (a)(7) of this section, the payload capacity of equipment shall meet the following minimum efficiency standards:

Frequency

Emission bandwidth ≤5 MHz

Emission bandwidth >5 MHz and ≤20 MHz

Emission bandwidth >20 MHz

3,700-10,550 MHz

2.4 bits/second/Hertz

4.4 bits/second/Hertz

4.4 bits/second/Hertz.

10,550-13,250 MHz

2.4 bits/second/Hertz

4.4 bits/second/Hertz

3.0 bits/second/Hertz.

(ii) Traffic loading payload shall exceed 50 percent of payload capacity within 30 months of licensing. During anomalous signal fading, licensees subject to the capacity and loading requirements may adjust to a modulation specified in their authorization if such modulation is necessary to allow licensees to maintain communications, even if the modulation will not comply with the capacity and loading requirements specified in this paragraph. Links that must comply with the capacity and loading requirements that use equipment capable of adjusting modulation must be designed using generally accepted multipath fading and rain fading models to meet the specified capacity and loading requirements at least 99.95% of the time, in the aggregate of both directions in a two-way link.

(4) If a transmitter is authorized to operate in a bandwidth that is not listed in paragraph (a)(3) of this section, it must meet the minimum payload capacity and traffic loading requirements of the next largest channel bandwidth listed in the table; e.g., if the authorized bandwidth is 3.5 MHz, the minimum payload capacity must be 12.3 Mbits/s.

(5) Transmitters carrying digital motion video motion material are exempt from the requirements specified in paragraphs (a)(2) and (a)(3) of this section, provided that at least 50 percent of the payload is digital video motion material and the minimum bit rate specified in paragraph (a)(1) of this section is met. In the 6, 10, and 11 GHz bands, concatenation of multiple contiguous channels is permitted for channels of equal bandwidth on center frequencies, provided no other channels are available and the minimum payload capacity requirements are met.

(6) Digital systems using bandwidths of 10 MHz or larger will be considered 50 percent loaded when at least 50 percent of their total capacity is being used. For purposes of this subsection, a Fixed Service channel is being used if it is attached to a communications system that is capable of providing data to it at a rate that is sufficient to occupy at least 50 percent of the payload capacity of the Fixed Service channel, after header compression is applied.

(7) Equipment placed in service after June 1, 1997 and prior to October 5, 2012 may comply with the provisions of § 101.141(a)(3) in effect as of the date the equipment was placed in service.

(b) For purposes of compliance with the emission limitation requirements of § 101.111(a)(2) and the requirements of paragraph (a) of this section, digital modulation techniques are considered as being employed when digital modulation occupies 50 percent or more to the total peak frequency deviation of a transmitted radio frequency carrier. The total peak frequency deviation will be determined by adding the deviation produced by the digital modulation signal and the deviation produced by any frequency division multiplex (FDM) modulation used. The deviation (D) produced by the FDM signal must be determined in accordance with § 2.202(f) of this chapter.

(c) Analog Modulation. Except for video transmission, an application for an initial working channel for a given route will not be accepted for filing where the anticipated loading (within five years for voice, or other period subject to reasonable projection) is less than the minimum specified for the following frequency bands. Absent extraordinary circumstances, applications proposing additional frequencies over existing routes will not be granted unless it is shown that the traffic load will shortly exhaust the capacity of the existing equipment. Where no construction of radio facilities is requested, licensees must submit this evidence with their filing of any necessary authority required pursuant to section 214 of the Communications Act and part 63 of this chapter.

Frequency band (MHz)

Minimum number of voice channels (4 KHz or equivalent)

3700 to 4200 (20 MHz bandwidth)

900

5925 to 6425 (10 MHz bandwidth)

300

5925 to 6425 (20 MHz bandwidth)

600

5925 to 6425 (30 MHz bandwidth)

900

6525 to 6875 (10 MHz bandwidth)

300

10,700 to 11,700 (10 MHz bandwidth)

300

10,700 to 11,700 (20 MHz bandwidth)

600

10,700 to 11,700 (30 MHz bandwidth)

900

10,700 to 11,700 (40 MHz bandwidth)

900

§ 101.143 Minimum path length requirements.

(a) The distance between end points of a fixed link in the private operational fixed point-to-point and the common carrier fixed point-to-point microwave services must equal or exceed the value set forth in the table below or the EIRP must be reduced in accordance with the equation set forth below:

Frequency band (MHz)

Minimum path length (km)

Below 1,850

N/A

1,850 to 7,125

17

10,550 to 13,250

5

Above 17,700

N/A

(b) For paths shorter than those specified in the table in paragraph (a) of this section, the EIRP shall not exceed the value derived from the following equation:

EIRP = MAXEIRP-40*log(A/B) dBW

Where: EIRP = The new maximum EIRP (equivalent isotropically radiated power) in dBW. MAXEIRP = Maximum EIRP as set forth in the Table in Section 101.113(a).

A = Minimum path length from the Table above for the frequency band in kilometers.

B = The actual path length in kilometers.

Note to paragraph ( b ):

For transmitters using Automatic Transmitter Power Control, EIRP corresponds to the maximum transmitter power available, not the coordinated transmit power or the nominal transmit power.

(c) Upon an appropriate technical showing, applicants and licensees unable to meet the minimum path length requirement may be granted an exception to these requirements.

Note to paragraph ( c ):

Links authorized prior to April 1, 1987, need not comply with this requirement.

§ 101.145 Interference to geostationary-satellites.

These limitations are necessary to minimize the probability of harmful interference to reception in the bands 2655-2690 MHz, 5925-7075 MHz, and 12.7-13.25 GHz on board geostationary-space stations in the fixed-satellite service.

(a) Stations authorized prior to July 1, 1976 in the band 2655-2690 MHz, which exceed the power levels in paragraphs (b) and (c) of this section are permitted to operate indefinitely, provided that the operation of such stations does not result in harmful interference to reception in these bands on board geostationary space stations.

(b) 2655 to 2690 MHz and 5925 to 7075 MHz. No directional transmitting antenna utilized by a fixed station operating in these bands with EIRP greater than 35 dBW may be aimed within 2 degrees of the geostationary-satellite orbit, taking into account atmospheric refraction. However, exception may be made in unusual circumstances upon a showing that there is no reasonable alternative to the transmission path proposed. If there is no evidence that such exception would cause possible harmful interference to an authorized satellite system, said transmission path may be authorized on waiver basis where the maximum value of the equivalent isotropically radiated power (EIRP) does not exceed:

(1) + 47 dBW for any antenna beam directed within 0.5 degrees of the stationary satellite orbit; or

(2) + 47 to + 55 dBW, on a linear decibel scale (8 dB per degree) for any antenna beam directed between 0.5 degrees and 1.5 degrees of the stationary orbit.

(c) 12.7 to 13.25 GHz. No directional transmitting antenna utilized by a fixed station operating in this band with EIRP greater than 45 dBW may be aimed within 1.5 degrees of the geostationary-satellite orbit, taking into account atmospheric refraction.

(d) Methods for calculating the azimuths to be avoided may be found in: CCIR Report No. 393 (Green Books), New Delhi, 1970; in “Radio-Relay Antenna Pointing for controlled Interference With Geostationary-Satellites” by C. W. Lundgren and A. S. May, Bell System Technical Journal, Vol. 48, No. 10, pp. 3387-3422, December 1969; and in “Geostationary Orbit Avoidance Computer Program” by Richard G. Gould, Common Carrier Bureau Report CC-7201, FCC, Washington, DC, 1972. This latter report is available through the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22151, in printed form (PB-211 500) or source card deck (PB-211 501).

§ 101.147 Frequency assignments.

(a) Frequencies in the following bands are available for assignment for fixed microwave services.

928.0-929.0 MHz (28)

932.0-932.5 MHz (27)

932.5-935 MHz (17)

941.0-941.5 MHz (27)

941.5-944 MHz (17) (18)

952.0-960.0 MHz (28)

1,850-1,990 MHz (20) (22)

2,110-2,130 MHz (1) (3) (7) (20) (23)

2,130-2,150 MHz (20) (22)

2,160-2,180 MHz (1) (2) (20) (23)

2,180-2,200 MHz (20) (22)

2,450-2,500 MHz (12)

2,650-2,690 MHz

3,700-4,200 MHz (8) (14) (25)

5,925-6,425 MHz (6) (14) (25)

6,425-6,525 MHz (24)

6,525-6.875 MHz (14) (33)

6,875-7,125 MHz (10) (34)

10,550-10,680 MHz (19)

10,700-11,700 MHz (8) (9) (19) (25)

11,700-12,200 MHz (24)

12,200-12,700 MHz (31)

12,700-13,200 (22), (34)

13,200-13,250 MHz (4) (24) (25)

14,200-14,400 MHz (24)

17,700-18,300 MHz (5) (10) (15)

19,300-19,700 MHz (5) (10) (15)

21,200-22,000 MHz (4) (11) (12) (13) (24) (25) (26)

22,000-23,600 MHz (4) (11) (12) (24) (25) (26)

24,250-25,250 MHz

29,100-29,250 MHz (5) (16)

31,000-31,300 MHz (16)

42,000-42,500 MHz

71,000-76,000 MHz (5) (17)

81,000-86,000 MHz (5) (17)

92,000-94,000 MHz (17)

94,100-95,000 MHz (17)

Notes

(1) Frequencies in this band are shared with control and repeater stations in the Public Mobile Services and with stations in the International Fixed Public Radio communication Services located south of 25°30′ north latitude in the State of Florida and U. S. possessions in the Caribbean area. Additionally, the band 2160-2162 MHz is shared with stations in the Multipoint Distribution Service.

(2) Except upon showing that no alternative frequencies are available, no new assignments will be made in the band 2160-2162 MHz for stations located within 80.5 kilometers (50 miles) of the coordinates of the cities listed in § 21.901(c) of this chapter.

(3) Television transmission in this band is not authorized and radio frequency channel widths may not exceed 3.5 MHz.

(4) Frequencies in this band are shared with fixed and mobile stations licensed in other services.

(5) Frequencies in this band are shared with stations in the fixed-satellite service.

(6) These frequencies are not available for assignment to mobile earth stations.

(7) Frequencies in the band 2110-2120 MHz may be authorized on a case-by-case basis to Government or non-Government space research earth stations for telecommand purposes in connection with deep space research.

(8) This frequency band is shared with station(s) in the Local Television Transmission Service for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, for permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band. This frequency band is also shared in the U.S. Possessions in the Caribbean area, with stations in the International Fixed Public Radiocommunications Services.

(9) The band segments 10.95-11.2 and 11.45-11.7 GHz are shared with space stations (space to earth) in the fixed-satellite service.

(10) This band is co-equally shared with stations in the fixed services under parts 74, 78 and 101 of this chapter.

(11) Frequencies in this band are shared with Government stations.

(12) Frequencies in this band are available for assignment to the common carrier and private-operational fixed point-to-point microwave services.

(13) Frequencies in this band are shared with stations in the earth exploration satellite service (space to earth).

(14) Frequencies in this band are shared with stations in the fixed satellite service. For 3,700-4,200 MHz, frequencies are only available for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, of permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz.

(15) Stations licensed as of September 9, 1983 to use frequencies in the 17.7-19.7 GHz band may, upon proper application, continue to be authorized for such operation.

(16) As of June 30, 1997, frequencies in these bands are available for assignment only to LMDS radio stations, except for non-LMDS radio stations authorized pursuant to applications refiled no later than June 26, 1998.

(17) Frequencies in these bands are shared with Government fixed stations and stations in the Private Operational Fixed Point-to-Point Microwave Service (part 101).

(18) Frequencies in the 942 to 944 MHz band are also shared with broadcast auxiliary stations.

(19) Frequencies in this band are shared with stations in the private-operational fixed point-to-point microwave service.

(20) New facilities in these bands will be licensed only on a secondary basis. Facilities licensed or applied for before January 16, 1992, are permitted to make minor modifications in accordance with § 101.81 and retain their primary status.

(21) Any authorization of additional stations to use the 2160-2162 MHz band for Multipoint Distribution Service applied for after January 16, 1992, will be secondary to use of the band for emerging technology services.

(22) Frequencies in these bands are for the exclusive use of Private Operational Fixed Point-to-Point Microwave Service (part 101). Frequencies in the 12,700-13,200 MHz band, which were available only to stations authorized in the 12,200-12,700 MHz band as of September 9, 1983, are not available for new facilities.

(23) Frequencies in these bands are for the exclusive use of Common Carrier Fixed Point-to-Point Microwave Service (part 101).

(24) Frequencies in these bands are available for assignment to television pickup and television non-broadcast pickup stations. The maximum power for the local television transmission service in the 14.2-14.4 GHz band is + 45 dBW except that operations are not permitted within 1.5 degrees of the geostationary orbit. Beginning March 1, 2005, no new LTTS operators will be licensed and no existing LTTS licenses shall be issued in the 11.7-12.2 and 14.2-14.4 GHz bands.

(25) Frequencies in these bands are available for assignment to television STL stations. For 3,700-4,200 MHz, frequencies are only available for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. Existing licensees as of April 19, 2018, of permanent and temporary point-to-point Fixed Service links in the contiguous United States have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band.

(26) Frequencies from 21.8-22.0 GHz and 23.0-23.2 GHz may be authorized for low power, limited coverage systems subject to the provisions of paragraph (s)(8) of this section.

(27) Frequencies in the 932 to 932.5 MHz and 941 to 941.5 MHz bands are shared with Government fixed point-to-multipoint stations. Frequencies in these bands are paired with one another and are available for flexible use for transmission of the licensee's products and information services, excluding video entertainment material. 932.00625/941.00625 MHz to 932.24375/941.24375 MHz is licensed by Economic Area. 932.25625/941.25625 MHz to 932.49375/941.49375 MHz is licensed on a site-by-site basis.

(28) Licensees that obtain authorizations in the 928/952/956 MHz MAS bands subsequent to July 1, 1999 are limited to private internal services, as defined in § 101.1305. Incumbent operations in the 928/952/956 MHz MAS bands, as defined in § 101.1331(a), are subject to grandfather rights pursuant to § 101.1331. The 928.85-929.0 MHz and 959.85-960.0 MHz bands are licensed on a geographic area basis with no eligibility restrictions. The 928.0-928.85 MHz band paired with the 952.0-952.85 MHz band, in addition to unpaired frequencies in the 956.25-956.45 MHz band, are licensed on a site-by-site basis and used for terrestrial point-to-point and point-to-multipoint fixed and limited mobile operations. The 928.85-929.0 MHz band paired with the 959.85-960.0 MHz band is licensed by Economic Area and used for terrestrial point-to-point and point-to-multipoint fixed operations.

(29) Frequencies in this band are shared with stations in the Multipoint Distribution Service (part 21). These frequencies may be used for the transmission of the licensee's products and information services, excluding video entertainment material to the licensee's customers.

(30) [Reserved]

(31) This frequency band can be used for Multichannel Video Distribution and Data Service (MVDDS) shared with Direct Broadcast Satellite (DBS) Services on a co-primary non-harmful interference basis and on a co-primary basis with NGSO FSS satellite earth stations. Incumbent private operational fixed point-to-point licensees can also use these frequencies on a site by site basis.

(32) Frequencies in this band are shared with stations in the fixed-satellite service, subject to the conditions specified in footnote 15 of § 25.202(a)(1) of this chapter, see 47 CFR 47 25.202(a)(1) n.16.

(33) The coordination of a new 30 megahertz link in the 6,525-6,875 MHz band should be attempted only if it cannot be accommodated in the 5,925-6,425 MHz band.

(34) In the bands 6,875-7,125 MHz and 12,700-13,150 MHz, links shall not intersect with the service areas of television pickup stations.

(b) Frequencies normally available for assignment in this service are set forth with applicable limitations in the following tables: 928-960 MHz Multiple address system (MAS) frequencies are available for the point-to-multipoint and point-to-point transmission of a licensee's products or services, excluding video entertainment material, to a licensee's customer or for its own internal communications. The paired frequencies listed in this section are used for two-way communications between a master station and remote stations. Ancillary one-way communications on paired frequencies are permitted on a case-by-case basis. Ancillary communications between interrelated master stations are permitted on a secondary basis. The normal channel bandwidth assigned will be 12.5 kHz. EA licensees, however, may combine contiguous channels without limit or justification. Site-based licensees may combine contiguous channels up to 50 kHz, and more than 50 kHz only upon a showing of adequate justification. Any bandwidth (12.5 kHz, 25 kHz or greater) authorized in accordance with this section may be subdivided into narrower bandwidths to create additional (or sub) frequencies without the need to specify each discrete frequency within the specific bandwidth. Equipment that is used to create additional frequencies by narrowing bandwidth (whether authorized for a 12.5 kHz, 25 kHz or greater bandwidth) will be required to meet, at a minimum, the ±0.00015 percent tolerance requirement so that all subfrequencies will be within the emission mask. Systems licensed for frequencies in these MAS bands prior to August 1, 1975, may continue to operate as authorized until June 11, 1996, at which time they must comply with current MAS operations based on the 12.5 kHz channelization set forth in this paragraph. Systems licensed between August 1, 1975, and January 1, 1981, inclusive, are required to comply with the grandfathered 25 kHz standard bandwidth and channelization requirements set forth in this paragraph. Systems originally licensed after January 1, 1981, and on or before May 11, 1988, with bandwidths of 25 kHz and above, will be grandfathered indefinitely.

Note to paragraph ( b ) introductory text:

Paragraphs (b)(1) through (b)(5) and Tables 1 through 7 of this section pertain to Multiple Address System (MAS) frequencies and paragraph (b)(6) and Tables 8 through 11 of this section pertain to Point-To-Point frequencies.

(1) Frequencies listed in this paragraph are designated for private internal use and are subject to site-based licensing.

Table 1—Paired Frequencies (MHz)

[12.5 kHz bandwidth]

Remote transmit

Master transmit

928.00625

952.00625

928.01875

952.01875

928.03125

952.03125

928.04375

952.04375

928.05625

952.05625

928.06875

952.06875

928.08125

952.08125

928.09375

952.09375

928.10625

952.10625

928.11875

952.11875

928.13125

952.13125

928.14375

952.14375

928.15625

952.15625

928.16875

952.16875

928.18125

952.18125

928.19375

952.19375

928.20625

952.20625

928.21875

952.21875

928.23125

952.23125

928.24375

952.24375

928.25625

952.25625

928.26875

952.26875

928.28125

952.28125

928.29375

952.29375

928.30625

952.30625

928.31875

952.31875

928.33125

952.33125

928.34375

952.34375

Unpaired Frequencies (MHz)

[12.5 kHz bandwidth]

D

D

D

956.25625

956.33125

956.39375

956.26875

956.34375

956.40625

956.28125

956.35625

956.41875

956.29375

956.36875

956.43125

956.30625

956.38125

956.44375

956.31875

Table 2—Paired Frequencies (MHz)

[25 kHz bandwidth]

Remote transmit

Master transmit

928.0125

952.0125

928.0375

952.0375

928.0625

952.0625

928.0875

952.0875

928.1125

952.1125

928.1375

952.1375

928.1625

952.1625

928.1875

952.1875

928.2125

952.2125

928.2375

952.2375

928.2625

952.2625

928.2875

952.2875

928.3125

952.3125

928.3375

952.3375

Unpaired Frequencies (MHz)

[25 kHz bandwidth]

956.2625

956.3375

956.4125

956.2875

956.3625

956.4375

956.3125

956.3875

(2) Frequencies listed in this paragraph are designated for private internal use and are subject to site-based licensing.

Table 3—Paired Frequencies (MHz)

[12.5 kHz bandwidth]

Remote transmit

Master transmit

928.35625

952.35625

928.36875

928.36875

928.38125

952.38125

928.39375

952.39375

928.40625

952.40625

928.41875

952.41875

928.43125

952.43125

928.44375

952.44375

928.45625

952.45625

928.46875

952.46875

928.48125

952.48125

928.49375

952.49375

928.50625

952.50625

928.51875

952.51875

928.53125

952.53125

928.54375

952.54375

928.55625

952.55625

928.56875

952.56875

928.58125

952.58125

928.59375

952.59375

928.60625

952.60625

928.61875

952.61875

928.63125

952.63125

928.64375

952.64375

928.65625

952.65625

928.66875

952.66875

928.68125

952.68125

928.69375

952.69375

928.70625

952.70625

928.71875

952.71875

928.73125

952.73125

928.74375

952.74375

928.75625

952.75625

928.76875

952.76875

928.78125

952.78125

928.79375

952.79375

928.80625

952.80625

928.81875

952.81875

928.83125

952.83125

928.84375

952.84375

Table 4—Paired Frequencies (MHz)

[25 kHz bandwidth]

Remote transmit

Master transmit

928.3625

952.3625

928.3875

952.3875

928.4125

952.4125

928.4375

952.4375

928.4625

952.4625

928.4875

952.4875

928.5125

952.5125

928.5375

952.5375

928.5625

952.5625

928.5875

952.5875

928.6125

952.6125

928.6375

952.6375

928.6625

952.6625

928.6875

952.6875

928.7125

952.7125

928.7375

952.7375

928.7625

952.7625

928.7875

952.7875

928.8125

952.8125

928.8375

952.8375

(3) Frequencies listed in this paragraph are not restricted to private internal use and are licensed by geographic area. Incumbent facilities must be protected.

Table 5—Paired Frequencies (MHz)

[12.5 kHz bandwidth]

Remote transmit

Master transmit

928.85625

959.85625

928.86875

959.86875

928.88125

959.88125

928.89375

959.89375

928.90625

959.90625

928.91875

959.91875

928.93125

959.93125

928.94375

959.94375

928.95625

959.95625

928.96875

959.96875

928.98125

959.98125

928.99375

959.99375

Table 6—Paired Frequencies (MHz)

[25 kHz bandwidth]

Remote transmit

Master transmit

928.8625

959.8625

928.8875

959.8875

928.9125

959.9125

928.9375

959.9375

928.9625

959.9625

928.9875

959.9875

(4) Frequencies listed in this paragraph are licensed by either economic area or on a site-by-site basis.

Table 7—Paired Frequencies

Remote transmit

Master transmit

Licensed by Economic Area

(12.5 kHz bandwidth):

932.00625

941.00625

932.01875

941.01875

932.03125

941.03125

932.04375

941.04375

932.05625

941.05625

932.06875

941.06875

932.08125

941.08125

932.09375

941.09375

(50 kHz bandwidth):

932.12500

941.12500

(12.5 kHz bandwidth):

932.15625

941.15625

932.16875

941.16875

932.18125

941.18125

932.19375

941.19375

932.20625

941.20625

932.21875

941.21875

932.23125

941.23125

932.24375

941.24375

Reserved for public safety and private internal use. Licensed on site-by-site basis.

(12.5 kHz bandwidth):

932.25625

941.25625

932.26875

941.26875

932.28125

941.28125

932.29375

941.29375

932.30625

941.30625

932.31875

941.31875

932.33125

941.33125

932.34375

941.34375

932.35625

941.35625

932.36875

941.36875

932.38125

941.38125

932.39375

941.39375

932.40625

941.40625

932.41875

941.41875

932.43125

941.43125

Reserved for Public Safety and Federal Government Use. Licensed on site-by-site basis.

(12.5 kHz bandwidth):

932.44375

941.44375

932.45625

941.45625

932.46875

941.46875

932.48125

941.48125

932.49375

941.49375

(5) Equivalent power and antenna heights for multiple address master stations:

Antenna height (AAT) in meters

Maximum effective radiated power

Watts

dBm

Above 305

200

53

Above 274 to 305

250

54

Above 244 to 274

315

55

Above 213 to 244

400

56

Above 182 to 213

500

57

Above 152.5 to 182

630

58

152.5 and below

1,000

60

For mobile operations the maximum ERP is 25 watts (44 dBm).

(6) Fixed point-to-point frequencies.

Table 8—Paired Frequencies

[All frequencies may be used by Common Carrier Fixed Point-to-Point and Private Operational Fixed Point-to-Point Microwave Service licensees; 25 kHz bandwidth]

Transmit (receive) (MHz)

Receive (transmit) (MHz)

932.5125

941.5125

932.5375

941.5375

932.5625

941.5625

932.5875

941.5875

932.6125

941.6125

932.6375

941.6375

932.6625

941.6625

934.8375

943.8375

934.8625

943.8625

934.8875

943.8875

934.9125

943.9125

934.9375

943.9375

934.9625

943.9625

934.9875

943.9875

Table 9—Paired Frequencies

[Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave Service licensees, unless otherwise noted; 50 kHz bandwidth]

Transmit (receive) (MHz)

Receive (transmit) (MHz)

932.70 1

1 941.70

932.75 1

1 941.75

934.80 1

1 943.80

956.65

953.05

956.75

953.15

956.85

953.25

956.95

953.35

957.05

953.45

957.25

953.65

957.35

953.75

957.45

953.85

957.65

954.05

957.75

954.15

957.85

954.25

958.05

954.45

958.15

954.55

958.25

954.65

958.45

954.85

958.55

954.95

958.65

955.05

958.85

955.25

958.95

955.35

959.05

955.45

959.25

955.65

959.35

955.75

959.45

955.85

959.55

955.95

959.65

956.05

1 These frequencies also may be used by Common Carrier Fixed Point-to-Point Microwave licensees.

Table 10—Paired Frequencies

[Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave licensees, unless otherwise noted; 100 kHz bandwidth]

Transmit (receive) (MHz)

Receive (transmit) (MHz)

932.8250 1

1 941.8250

932.9250 1

1 941.9250

933.0250 1

1 942.0250

934.5250 1

1 943.5250

934.6250 1

1 943.6250

934.7250 1

1 943.7250

956.6

953.0

956.7

953.1

956.8

953.2

956.9

953.3

957.0

953.4

957.1

953.5

957.2

953.6

957.3

953.7

957.4

953.8

957.5

953.9

957.6

954.0

957.7

954.1

957.8

954.2

957.9

954.3

958.0

954.4

958.1

954.5

958.2

954.6

958.3

954.7

958.4

954.8

958.5

954.9

958.6

955.0

958.7

955.1

958.8

955.2

958.9

955.3

959.0

955.4

959.1

955.5

959.2

955.6

959.3

955.7

959.4

955.8

959.5

955.9

959.6

956.0

959.7

956.1

1 These frequencies also may be used by Common Carrier Fixed Point-to-Point Microwave licensees.

Table 11—Paired Frequencies

[Frequencies may be used only by Private Operational Fixed Point-to-Point Microwave licensees, unless otherwise noted; (200 kHz bandwidth)]

Transmit (receive) (MHz)

Receive (transmit) (MHz)

933.1750 1

1 942.1750

933.3750 1

1 942.3750

933.5750 1

1 942.5750

933.7750 1

1 942.7750

933.9750 1

1 942.9750

934.1750 1

1 943.1750

934.3750 1

1 943.3750

957.15

953.55

957.55

953.95

957.95

954.35

958.35

954.75

958.75

955.15

959.15

955.55

1 These frequencies also may be used by Common Carrier Fixed Point-to-Point Microwave licensees.

(c) 1850-1990 MHz. (1) 10 MHz maximum bandwidth.

Paired Frequencies

Transmit (receive) (MHz)

Receive (transmit) (MHz)

1855

1935

1865

1945

1875

1955

1885

1965

1895

1975

1905

1985

Unpaired Frequencies

1915 1

1925 1

1 Available for systems employing one-way transmission.

(2) 5 MHz maximum bandwidth.

Paired Frequencies

Transmit (receive) (MHz)

Receive (transmit) (MHz)

1860

1940

1870

1950

1880

1960

1890

1970

1900

1980

(d) 2130-2150 MHz; 2180-2200 MHz. 800 kHz maximum bandwidth, unless noted.

Paired Frequencies

2130-2150

2180-2200

Transmit (receive) (MHz)

Receive (transmit) (MHz)

2130.8

2180.8

2131.6

1 2181.6

2132.4

2182.4

2133.2

1 2183.2

2134.0

2184.0

2134.8

1 2184.8

2135.6

2185.6

2136.4

1 2186.4

2137.2

2187.2

2138.0

1 2188.0

2139.6

1 2189.6

2138.8

2188.8

2140.4

2190.4

2141.2

1 2191.2

2142.0

2192.0

2142.8

1 2192.8

2143.6

2193.6

2144.4

1 2194.4

2145.2

2195.2

2146.0

1 2196.0

2146.8

2196.8

2147.6

1 2197.6

2148.4

2198.4

2149.2

2199.2

1 Consideration will be given on a case-by-case basis to assigning these frequency pairs to systems employing 1600 KHz bandwidth transmissions.

(e) [Reserved]

(f) 2450-2500 MHz. (1) This band is shared with other communications services and is not subject to protection from interference from industrial, scientific, and medical devices operating on 2450 MHz.

(2) Stations licensed in this band under this part prior to March 1, 1996, are grandfathered and may continue their authorized operations. Stations licensed in the 2483.5-2500 MHz portion of the band as of July 25, 1985, and licensees whose initial applications were filed on or before July 25, 1985, are grandfathered, and may continue operations, subject only to license renewal, on a co-primary basis with with the mobile-satellite and radiodetermination-satellite services, and in the segment 2495-2500 MHz, their operations are also on a co-primary basis with part 27 fixed and mobile except aeronautical mobile service operations.

(3) 625 KHz bandwidth channels. The normal bandwidth authorized will be 625 KHz. Upon adequate justification, additional contiguous channels may be authorized to provide up to a 2500 KHz bandwidth.

Paired Frequencies

Transmit (receive) (MHz)

Receive (transmit) (MHz)

2450.3125

2467.5625

2450.9375

2468.1875

2451.5625

2468.8125

2452.1875

2469.4375

2452.8125

2470.0625

2453.4375

2470.6875

2454.0625

2471.3125

2454.6875

2471.9375

2455.3125

2472.5625

2455.9375

2473.1875

2456.5625

2473.8125

2457.1875

2474.4375

2457.8125

2475.0625

2458.4375

2475.6875

2459.0625

2476.3125

2459.6875

2476.9375

2460.3125

2477.5625

2460.9375

2478.1875

2461.5625

2478.8125

2462.1875

2479.4375

2462.8125

2480.0625

2463.4375

2480.6875

2464.0625

2481.3125

2464.6875

2481.9375

2465.3125

2482.5625

2465.9375

2483.1875

(g) [Reserved]

(h) 3,700 to 4,200 MHz outside the contiguous United States. 20 MHz maximum authorized bandwidth.

20 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

3710

3750

3730

3770

3790

3830

3810

3850

3870

3910

3890

3930

3950

3990

3970

4010

4030

4070

4050

4090

4110

4150

4130

4170

N/A

1 4190

1 This frequency may be assigned for unpaired use.

(i) 5,925 to 6,425 MHz. 60 MHz authorized bandwidth.

(1) 400 kHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5925.225

6177.100

5925.625

6177.500

5926.050

6177.925

5926.450

6178.325

5926.875

6178.750

5927.275

6179.150

5927.725

6179.600

5928.125

6180.000

5928.550

6180.425

5928.950

6180.825

5929.375

6181.250

5929.775

6181.650

6168.350

6420.225

6168.750

6420.625

6169.175

6421.050

6169.575

6421.450

6170.000

6421.875

6170.400

6422.275

6170.850

6422.725

6171.250

6423.125

6171.675

6423.550

6172.075

6423.950

6172.500

6424.375

6172.900

6424.775

(2) 800 kHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5925.425

6177.300

5926.250

6178.125

5927.075

6178.950

5927.925

6179.800

5928.750

6180.625

5929.575

6181.450

6168.550

6420.425

6169.375

6421.250

6170.200

6422.075

6171.050

6422.925

6171.875

6423.750

6172.700

6424.575

(3) 1.25 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5925.625

6177.500

5926.875

6178.750

5928.125

6180.000

5929.375

6181.250

6108.893

6360.933

6110.128

6362.168

6111.364

6363.404

6112.599

6364.639

6113.834

6365.874

6115.070

6367.110

6116.305

6368.345

6117.541

6369.581

6118.776

6370.816

6120.011

6372.051

6121.247

6373.287

6122.482

6374.522

6123.718

6375.758

6124.953

6376.993

6126.189

6378.229

6127.424

6379.464

6128.659

6380.699

6129.895

6381.935

6131.130

6383.170

6132.366

6384.406

6133.601

6385.641

6134.836

6386.876

6136.072

6388.112

6137.307

6389.347

6138.543

6390.583

6139.778

6391.818

6141.014

6393.054

6142.249

6394.289

6143.484

6395.524

6144.720

6396.760

6145.955

6397.995

6147.191

6399.231

6148.426

6400.466

6149.661

6401.701

6150.897

6402.937

6152.132

6404.172

6153.368

6405.408

6154.603

6406.643

6155.839

6407.879

6157.074

6409.114

6158.309

6410.349

6159.545

6411.585

6160.780

6412.820

6162.016

6414.056

6163.251

6415.291

6164.486

6416.526

6165.722

6417.762

6166.957

6418.997

6168.750

6420.625

6170.000

6421.875

6171.250

6423.125

6172.500

6424.375

6173.750 1

N/A

6175.000 1

N/A

6176.250 1

N/A

1 These frequencies may be assigned for unpaired use.

(4) 2.5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5926.250

6178.125

5928.750

6180.625

6109.510

6361.550

6111.981

6364.021

6114.452

6366.492

6116.923

6368.963

6119.394

6371.434

6121.865

6373.905

6124.335

6376.375

6126.806

6378.846

6129.277

6381.317

6131.748

6383.788

6134.219

6386.259

6136.690

6388.730

6139.160

6391.200

6141.631

6393.671

6144.102

6396.142

6146.573

6398.613

6149.044

6401.084

6151.515

6403.555

6153.985

6406.025

6156.456

6408.496

6158.927

6410.967

6161.398

6413.438

6163.869

6415.909

6166.340

6418.380

6169.375

6421.250

6171.875

6423.750

6175.625 1

N/A

1 This frequency may be assigned for unpaired use.

(5) 3.75 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6111.364

6363.404

6116.305

6368.345

6121.247

6373.287

6126.189

6378.229

6131.130

6383.170

6136.072

6388.112

6141.014

6393.054

6145.955

6397.995

6150.897

6402.937

6155.839

6407.879

6160.780

6412.820

6165.722

6417.762

6175.000 1

N/A

1 This frequency may be assigned for unpaired use.

(6) 5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6110.75

6362.79

6115.69

6367.73

6120.63

6372.67

6125.57

6377.61

6130.51

6382.55

6135.45

6387.49

6140.40

6392.44

6145.34

6397.38

6150.28

6402.32

6155.22

6407.26

6160.16

6412.20

6165.10

6417.14

(7) 10 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5935.32

6187.36

5945.20

6197.24

5955.08

6207.12

5964.97

6217.01

5974.85

6226.89

5984.73

6236.77

5994.62

6246.66

6004.50

6256.54

6014.38

6266.42

6024.27

6276.31

6034.15

6286.19

6044.03

6296.07

6053.92

6305.96

6063.80

6315.84

6073.68

6325.72

6083.57

6335.61

6093.45

6345.49

6103.33

6355.37

6113.22 1

1 6365.26

6123.10 1

1 6375.14

6132.98 1

1 6385.02

6142.87 1

1 6394.91

6152.75 1

1 6404.79

6162.63 1

1 6414.67

1 Alternate channels. These channels are set aside for narrow bandwidth systems and should be used only if all other channels are blocked.

(8) 30 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5945.20

6197.24

5974.85

6226.89

6004.50

6256.54

6034.15

6286.19

6063.80

6315.84

6093.45

6345.49

6123.10 1

1 6375.14

6152.75 1

1 6404.79

1 Alternate channels. These channels are set aside for narrow bandwidth systems and should be used only if all other channels are blocked.

(9) 60 MHz bandwidth channels:

1

Transmit (receive) (MHz)

Receive (transmit) (MHz)

5960.025

6212.065

6019.325

6271.365

6078.625

6330.665

6137.925

6389.965

(j) 6,425 to 6,525 MHz: Mobile. Paired and un-paired operations permitted. Use of this spectrum for direct delivery of video programs to the general public or multi-channel cable distribution is not permitted. This band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of the Commission's Rules. Stations not intended to be operated while in motion will be licensed under the provision of § 101.31. The following channel plans apply.

(1) 1 MHz maximum authorized bandwidth channels:

Transmit (or receive) (MHz)

Receive (or transmit) (MHz)

6425.5

6475.5

6450.5

6500.5

(2) 8 MHz maximum authorized bandwidth channels:

Transmit (or receive) (MHz)

Receive (or transmit) (MHz)

6430.0

6480.0

6438.0

6488.0

6446.0

6496.0

6455.0

6505.0

6463.0

6513.0

6471.0

6521.0

(3) 25 MHz maximum authorized bandwidth channels:

Transmit (or receive) (MHz)

Receive (or transmit) (MHz)

6437.5

6487.5

6462.5

6512.5

(k) 6,525 to 6,875 MHz. 10 MHz authorized bandwidth.

(1) 400 kHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6525.225

6870.225

6525.625

6870.625

6526.050

6871.050

6526.450

6871.450

6526.875

6871.875

6527.275

6872.275

6527.725

6872.725

6528.125

6873.125

6528.550

6873.550

6528.950

6873.950

6529.375

6874.375

6529.775

6874.775

(2) 800 kHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6525.425

6870.425

6526.250

6871.250

6527.075

6872.075

6527.925

6872.925

6528.750

6873.750

6529.575

6874.575

(3) 1.25 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6525.625

6870.625

6526.875

6871.875

6528.125

6873.125

6529.375

6874.375

6540.625 1

1 6718.125

6541.875 1

1 6719.375

6543.125 1

1 6713.125

6544.375 1

1 6714.375

6545.625 1

1 6715.625

6546.875 1

1 6716.875

6548.125

6728.125

6549.375

6729.375

6550.625

6730.625

6551.875

6731.875

6553.125 1

1 6723.125

6554.375 1

1 6724.375

6555.625 1

1 6725.625

6556.875 1

1 6726.875

6558.125

6738.125

6559.375

6739.375

6560.625

6740.625

6561.875

6741.875

6563.125

6733.125

6564.375

6734.375

6565.625

6735.625

6566.875

6736.875

6568.125 1

1 6720.625

6569.375 1

1 6721.875

6580.625 1

1 6868.125

6581.875 1

1 6869.375

6583.125

6743.125

6584.375

6744.375

6585.625

6745.625

6586.875

6746.875

6588.125

6748.125

6589.375

6749.375

6590.625

6750.625

6591.875

6751.875

6593.125

6753.125

6594.375

6754.375

6595.625

6755.625

6596.875

6756.875

6598.125

6758.125

6599.375

6759.375

6600.625

6760.625

6601.875

6761.875

6603.125

6763.125

6604.375

6764.375

6605.625

6765.625

6606.875

6766.875

6608.125

6768.125

6609.375

6769.375

6610.625

6770.625

6611.875

6771.875

6613.125

6773.125

6614.375

6774.375

6615.625

6775.625

6616.875

6776.875

6618.125

6778.125

6619.375

6779.375

6620.625

6780.625

6621.875

6781.875

6623.125

6783.125

6624.375

6784.375

6625.625

6785.625

6626.875

6786.875

6628.125

6788.125

6629.375

6789.375

6630.625

6790.625

6631.875

6791.875

6633.125

6793.125

6634.375

6794.375

6635.625

6795.625

6636.875

6796.875

6638.125

6798.125

6639.375

6799.375

6640.625

6800.625

6641.875

6801.875

6643.125

6803.125

6644.375

6804.375

6645.625

6805.625

6646.875

6806.875

6648.125

6808.125

6649.375

6809.375

6650.625

6810.625

6651.875

6811.875

6653.125

6813.125

6654.375

6814.375

6655.625

6815.625

6656.875

6816.875

6658.125

6818.125

6659.375

6819.375

6660.625

6820.625

6661.875

6821.875

6663.125

6823.125

6664.375

6824.375

6665.625

6825.625

6666.875

6826.875

6668.125

6828.125

6669.375

6829.375

6670.625

6830.625

6671.875

6831.875

6673.125

6833.125

6674.375

6834.375

6675.625

6835.625

6676.875

6836.875

6678.125

6838.125

6679.375

6839.375

6680.625

6840.625

6681.875

6841.875

6683.125

6843.125

6684.375

6844.375

6685.625

6845.625

6686.875

6846.875

6688.125

6848.125

6689.375

6849.375

6690.625

6850.625

6691.875

6851.875

6693.125

6853.125

6694.375

6854.375

6695.625

6855.625

6696.875

6856.875

6698.125

6858.125

6699.375

6859.375

6700.625

6860.625

6701.875

6861.875

6703.125

6863.125

6704.375

6864.375

6705.625

6865.625

6706.875

6866.875

6708.125 1

1 6710.625

6709.375 1

1 6711.875

1 These frequencies may be assigned for unpaired use.

(4) 2.5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6526.25

6871.25

6528.75

6873.75

6541.25 1

1 6718.75

6543.75 1

1 6713.75

6546.25 1

1 6716.25

6548.75

6728.75

6551.25

6731.25

6553.75 1

1 6723.75

6556.25 1

1 6726.25

6558.75

6738.75

6561.25

6741.25

6563.75

6733.75

6566.25

6736.25

6568.75 1

1 6721.25

6581.25 1

1 6868.75

6583.75

6743.75

6586.25

6746.25

6588.75

6748.75

6591.25

6751.25

6593.75

6753.75

6596.25

6756.25

6598.75

6758.75

6601.25

6761.25

6603.75

6763.75

6606.25

6766.25

6608.75

6768.75

6611.25

6771.25

6613.75

6773.75

6616.25

6776.25

6618.75

6778.75

6621.25

6781.25

6623.75

6783.75

6626.25

6786.25

6628.75

6788.75

6631.25

6791.25

6633.75

6793.75

6636.25

6796.25

6638.75

6798.75

6641.25

6801.25

6643.75

6803.75

6646.25

6806.25

6648.75

6808.75

6651.25

6811.25

6653.75

6813.75

6656.25

6816.25

6658.75

6818.75

6661.25

6821.25

6663.75

6823.75

6666.25

6826.25

6668.75

6828.75

6671.25

6831.25

6673.75

6833.75

6676.25

6836.25

6678.75

6838.75

6681.25

6841.25

6683.75

6843.75

6686.25

6846.25

6688.75

6848.75

6691.25

6851.25

6693.75

6853.75

6696.25

6856.25

6698.75

6858.75

6701.25

6861.25

6703.75

6863.75

6706.25

6866.25

6708.75 1

1 6711.25

1 These frequencies may be assigned for unpaired use.

(5) 3.75 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6545.625 1

6715.625 1

6550.625

6730.625

6555.625 1

6725.625 1

6560.625

6740.625

6565.625

6735.625

6585.625

6745.625

6590.625

6750.625

6595.625

6755.625

6600.625

6760.625

6605.625

6765.625

6610.625

6770.625

6615.625

6775.625

6620.625

6780.625

6625.625

6785.625

6630.625

6790.625

6635.625

6795.625

6640.625

6800.625

6645.625

6805.625

6650.625

6810.625

6655.625

6815.625

6660.625

6820.625

6665.625

6825.625

6670.625

6830.625

6675.625

6835.625

6680.625

6840.625

6685.625

6845.625

6690.625

6850.625

6695.625

6855.625

6700.625

6860.625

6705.625

6865.625

6710.625 1

1 6720.625

1 These frequencies may be assigned for unpaired use.

(6) 5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6545 1

1 6715

6550

6730

6555 1

1 6725

6560

6740

6565

6735

6585

6745

6590

6750

6595

6755

6600

6760

6605

6765

6610

6770

6615

6775

6620

6780

6625

6785

6630

6790

6635

6795

6640

6800

6645

6805

6650

6810

6655

6815

6660

6820

6665

6825

6670

6830

6675

6835

6680

6840

6685

6845

6690

6850

6695

6855

6700

6860

6705

6865

6710 1

1 6720

1 These frequencies may be assigned for unpaired use.

(7) 10 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6545 1

1 6715

6555 1

1 6725

6565

6735

6585

6745

6595

6755

6605

6765

6615

6775

6625

6785

6635

6795

6645

6805

6655

6815

6665

6825

6675

6835

6685

6845

6695

6855

6705

6865

6535 2

2 6575

1 These frequencies may be assigned for unpaired use.

2 Available only for emergency restoration, maintenance bypass, or other temporary-fixed purposes. Such uses are authorized on a non-interference basis to other frequencies in this band. Interference analysis required by § 101.105 does not apply to this frequency pair.

(8) 30 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6555

6725

6595

6755

6625

6785

6655

6815

6685

6845

(l) 6875 to 7125 MHz. 25 MHz authorized bandwidth.

(1) 5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6877.5

7027.5

6882.5

7032.5

6887.5

7037.5

6892.5

7042.5

6897.5

7047.5

6902.5

7052.5

6907.5

7057.5

6912.5

7062.5

6917.5

7067.5

6922.5

7072.5

6927.5

7077.5

6932.5

7082.5

6937.5

7087.5

6942.5

7092.5

6947.5

7097.5

6952.5

7102.5

6957.5

7107.5

6962.5

7112.5

6967.5

7117.5

6972.5

7122.5

(2) 8.33 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6879.165

7029.165

6887.495

7037.495

6895.825

7045.825

6904.155

7054.155

6912.485

7062.485

6920.815

7070.815

6929.145

7079.145

6937.475

7087.475

6945.805

7095.805

6954.135

7104.135

6962.465

7112.465

6970.795

7120.795

(3) 12.5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6881.25

7031.25

6893.75

7043.75

6906.25

7056.25

6918.75

7068.75

6931.25

7081.25

6943.75

7093.75

6956.25

7106.25

6968.75

7118.75

(4) 25 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

6887.5

7037.5

6912.5

7062.5

6937.5

7087.5

6962.5

7112.5

(m) 10,550 to 10,680 MHz. 5 MHz authorized bandwidth.

(1) 400 kHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10605.225

10670.225

10605.625

10670.625

10606.050

10671.050

10606.450

10671.450

10606.875

10671.875

10607.275

10672.275

10607.725

10672.725

10608.125

10673.125

10608.550

10673.550

10608.950

10673.950

10609.375

10674.375

10609.775

10674.775

10610.225

10675.225

10610.625

10675.625

10611.050

10676.050

10611.450

10676.450

10611.875

10676.875

10612.275

10677.275

10612.725

10677.725

10613.125

10678.125

10613.550

10678.550

10613.950

10678.950

10614.375

10679.375

10614.775

10679.775

(2) 800 kHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10605.425

10670.425

10606.250

10671.250

10607.075

10672.075

10607.925

10672.925

10608.750

10673.750

10609.575

10674.575

10610.425

10675.425

10611.250

10676.250

10612.075

10677.075

10612.925

10677.925

10613.750

10678.750

10614.575

10679.575

(3) 1.25 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10550.625

10615.625

10551.875

10616.875

10553.125

10618.125

10554.375

10619.375

10555.625

10620.625

10556.875

10621.875

10558.125

10623.125

10559.375

10624.375

10560.625

10625.625

10561.875

10626.875

10563.125

10628.125

10564.375

10629.375

10565.625

10630.625

10566.875

10631.875

10568.125

10633.125

10569.375

10634.375

10570.625

10635.625

10571.875

10636.875

10573.125

10638.125

10574.375

10639.375

10575.625

10640.625

10576.875

10641.875

10578.125

10643.125

10579.375

10644.375

10580.625

10645.625

10581.875

10646.875

10583.125

10648.125

10584.375

10649.375

10585.625

10650.625

10586.875

10651.875

10588.125

10653.125

10589.375

10654.375

10590.625

10655.625

10591.875

10656.875

10593.125

10658.125

10594.375

10659.375

10595.625

10660.625

10596.875

10661.875

10598.125

10663.125

10599.375

10664.375

10600.625

10665.625

10601.875

10666.875

10603.125

10668.125

10604.375

10669.375

10605.625

10670.625

10606.875

10671.875

10608.125

10673.125

10609.375

10674.375

10610.625

10675.625

10611.875

10676.875

10613.125

10678.125

10614.375

10679.375

(4) 2.5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10551.25

10616.25

10553.75

10618.75

10556.25

10621.25

10558.75

10623.75

10561.25

10626.25

10563.75

10628.75

10566.25

10631.25

10568.75

10633.75

10571.25

10636.25

10573.75

10638.75

10576.25

10641.25

10578.75

10643.75

10581.25 1

1 10646.25

10583.75 1

1 10648.75

10586.25 1

1 10651.25

10588.75 1

1 10653.75

10591.25 1

1 10656.25

10593.75 1

1 10658.75

10596.25 1

1 10661.25

10598.75 1

1 10663.75

10601.25 1

1 10666.25

10603.75 1

1 10668.75

10606.25 1

1 10671.25

10608.75 1

1 10673.75

10611.25 1

1 10676.25

10613.75 1

1 10678.75

1 These frequencies are also available for DEMS stations licensed, in operation, or applied for prior to July 15, 1993.

(5) 3.75 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10553.125

10618.125

10558.125

10623.125

10563.125

10628.125

10568.125

10633.125

10573.125

10638.125

10578.125

10643.125

10583.125

10648.125

10588.125

10653.125

10593.125

10658.125

10598.125

10663.125

10603.125

10668.125

(6) 5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10552.5

10617.5

10557.5

10622.5

10562.5

10627.5

10567.5 1

1 10632.5

10572.5 1

1 10637.5

10577.5 1

1 10642.5

10582.5 1

1 10647.5

10587.5

10652.5

10592.5

10657.5

10597.5

10662.5

10602.5

10667.5

1 These frequencies are also available for DEMS stations licensed, in operation, or applied for prior to July 15, 1993.

(n) Point-to-multipoint systems licensed, in operation, or applied for in the 10,550-10,680 MHz band prior to July 15, 1993, are permitted to use the DEMS frequencies noted above if they prior coordinate such usage with the necessary parties including 10 GHz point-to-point applicants and licensees. DEMS Nodal Stations shall use the band 10,565-10,615 MHz while DEMS User Stations shall use the band 10,630-10,680 MHz.

(o) 10,700 to 11,700 MHz. 80 MHz authorized bandwidth.

(1) 1.25 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

11130.625

11620.625

11131.875

11621.875

11133.125

11623.125

11134.375

11624.375

11135.625

11625.625

11136.875

11626.875

11138.125

11628.125

11139.375

11629.375

11140.625

11630.625

11141.875

11631.875

11143.125

11633.125

11144.375

11634.375

11145.625

11635.625

11146.875

11636.875

11148.125

11638.125

11149.375

11639.375

11150.625

11640.625

11151.875

11641.875

11153.125

11643.125

11154.375

11644.375

11155.625

11645.625

11156.875

11646.875

11158.125

11648.125

11159.375

11649.375

11160.625

11650.625

11161.875

11651.875

11163.125

11653.125

11164.375

11654.375

11165.625

11655.625

11166.875

11656.875

11168.125

11658.125

11169.375

11659.375

11170.625

11660.625

11171.875

11661.875

11173.125

11663.125

11174.375

11664.375

11175.625

11665.625

11176.875

11666.875

11178.125

11668.125

11179.375

11669.375

11180.625

11680.625

11181.875

11681.875

11183.125

11683.125

11184.375

11684.375

11185.625

11685.625

11186.875

11686.875

11188.125

11688.125

11189.375

11689.375

11190.625

11690.625

11191.875

11691.875

11193.125

11693.125

11194.375

11694.375

11195.625

11695.625

11196.875

11696.875

11198.125

11698.125

11199.375

11699.375

(2) 2.5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

11131.25

11621.25

11133.75

11623.75

11136.25

11626.25

11138.75

11628.75

11141.25

11631.25

11143.75

11633.75

11146.25

11636.25

11148.75

11638.75

11151.25

11641.25

11153.75

11643.75

11156.25

11646.25

11158.75

11648.75

11161.25

11651.25

11163.75

11653.75

11166.25

11656.25

11168.75

11658.75

11171.25

11661.25

11173.75

11663.75

11176.25

11666.25

11178.75

11668.75

11181.25

11681.25

11183.75

11683.75

11186.25

11686.25

11188.75

11688.75

11191.25

11691.25

11193.75

11693.75

11196.25

11696.25

11198.75

11698.75

(3) 3.75 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

11133.125

11623.125

11138.125

11628.125

11143.125

11633.125

11148.125

11638.125

11153.125

11643.125

11158.125

11648.125

11163.125

11653.125

11168.125

11658.125

11173.125

11663.125

11178.125

11668.125

11183.125

11683.125

11188.125

11688.125

11193.125

11693.125

11198.125

11698.125

(4) 5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

11132.5

11622.5

11137.5

11627.5

11142.5

11632.5

11147.5

11637.5

11152.5

11642.5

11157.5

11647.5

11162.5

11652.5

11167.5

11657.5

11172.5

11662.5

11177.5

11667.5

11182.5

11682.5

11187.5

11687.5

11192.5

11692.5

11197.5

11697.5

(5) 10 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10705

11205

10715

11215

10725 2

1 11675

10735

11225

10745

11235

10755

11245

10765

11255

10775

11265

10785

11275

10795

11285

10805

11295

10815

11305

10825

11315

10835

11325

10845

11335

10855

11345

10865

11355

10875

11365

10885

11375

10895

11385

10905

11395

10915

11405

10925

11415

10935

11425

10945

11435

10955

11445

10965

11455

10975

11465

10985

11475

10995

11485

11005

11495

11015

11505

11025

11515

11035

11525

11045

11535

11055

11545

11065

11555

11075

11565

11085

11575

11095

11585

11105

11595

11115

11605

11125

11615

11135 1

1 11625

11145 1

1 11635

11155 1

1 11645

11165 1

1 11655

11175 1

1 11665

11185 1

1 11685

11195 1

1 11695

1 Alternate channels. These channels are set aside for narrow bandwidth systems and should be used only if all other channels are blocked.

2 These frequencies may be assigned for unpaired use.

(6) 30 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10715

11215

10755

11245

10795

11285

10835

11325

10875

11365

10915

11405

10955

11445

10995

11485

11035

11525

11075

11565

11115

11605

11155 1

1 11645

11185 1

1 11685

1 Alternate channels. These channels are set aside for narrow bandwidth systems and should be used only if all other channels are blocked.

(7) 40 MHz bandwidth channels:

2

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10735

11225

10775

11265

10815

11305

10855

11345

10895

11385

10935

11425

10975

11465

11015

11505

11055

11545

11095

11585

11135 1

1 11625

11175 1

1 11665

1 Alternate channels. These channels are set aside for narrow bandwidth systems and should be used only if all other channels are blocked.

2 In congested areas where 40 MHz channels block most 30 MHz channels, radios authorized for 30 MHz bandwidths may use the 40 MHz channels. In uncongested areas, 30 MHz channels should be used.

(8) 80 MHz bandwidth channels:

1

Transmit (receive) (MHz)

Receive (transmit) (MHz)

10755

11245

10835

11325

10915

11405

10995

11485

11075

11565

11155

11645

(p) 12,200 to 13,150 MHz —(1) 12,000-12,700 MHz. The Commission has allocated the 12.2-12.7 GHz band for use by the Direct Broadcast Satellite Service (DBS), the Multichannel Video Distribution and Data Service (MVDDS), and the Non-Geostationary Satellite Orbit Fixed Satellite Service (NGSO FSS). MVDDS shall be licensed on a non-harmful interference co-primary basis to existing DBS operations and on a co-primary basis with NGSO FSS stations in this band. MVDDS use can be on a common carrier and/or non-common carrier basis and can use channels of any desired bandwidth up to the maximum of 500 MHz provided the EIRP does not exceed 14 dBm per 24 megahertz. Private operational fixed point-to-point microwave stations authorized after September 9, 1983, are licensed on a non-harmful interference basis to DBS and are required to make any and all adjustments necessary to prevent harmful interference to operating domestic DBS receivers. Incumbent public safety licensees shall be afforded protection from MVDDS and NGSO FSS licensees, however all other private operational fixed licensees shall be secondary to DBS, MVDDS and NGSO FSS licensees. As of May 23, 2002, the Commission no longer accepts applications for new licenses for point-to-point private operational fixed stations in this band, however, incumbent licensees and previously filed applicants may file applications for minor modifications and amendments (as defined in § 1.929 of this chapter) thereto, renewals, transfer of control, or assignment of license. Notwithstanding any other provisions, no private operational fixed point-to-point microwave stations are permitted to cause harmful interference to broadcasting-satellite stations of other countries operating in accordance with the Region 2 plan for the Broadcasting-Satellite Service established at the 1983 WARC.

(2) 12,700 to 13,150 MHz. 50 MHz authorized bandwidth.

(i) 5 MHz channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

12702.5

12927.5

12707.5

12932.5

12712.5

12937.5

12717.5

12942.5

12722.5

12947.5

12727.5

12952.5

12732.5

12957.5

12737.5

12962.5

12742.5

12967.5

12747.5

12972.5

12752.5

12977.5

12757.5

12982.5

12762.5

12987.5

12767.5

12992.5

12772.5

12997.5

12777.5

13002.5

12782.5

13007.5

12787.5

13012.5

12792.5

13017.5

12797.5

13022.5

12802.5

13027.5

12807.5

13032.5

12812.5

13037.5

12817.5

13042.5

12822.5

13047.5

12827.5

13052.5

12832.5

13057.5

12837.5

13062.5

12842.5

13067.5

12847.5

13072.5

12852.5

13077.5

12857.5

13082.5

12862.5

13087.5

12867.5

13092.5

12872.5

13097.5

12877.5

13102.5

12882.5

13107.5

12887.5

13112.5

12892.5

13117.5

12897.5

13122.5

12902.5

13127.5

12907.5

13132.5

12912.5

13137.5

12917.5

13142.5

12922.5

13147.5

(ii) 8.33 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

12704.165

12929.165

12712.495

12937.495

12720.825

12945.825

12729.155

12954.155

12737.485

12962.485

12745.815

12970.815

12754.145

12979.145

12762.475

12987.475

12770.805

12995.805

12779.135

13004.135

12787.465

13012.465

12795.795

13020.795

12804.125

13029.125

12812.455

13037.455

12820.785

13045.785

12829.115

13054.115

12837.445

13062.445

12845.775

13070.775

12854.105

13079.105

12862.435

13087.435

12870.765

13095.765

12879.095

13104.095

12887.425

13112.425

12895.755

13120.755

12904.085

13129.085

12912.415

13137.415

(iii) 12.5 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

12706.25

12931.25

12718.75

12943.75

12731.25

12956.25

12743.75

12968.75

12756.25

12981.25

12768.75

12993.75

12781.25

13006.25

12793.75

13018.75

12806.25

13031.25

12818.75

13043.75

12831.25

13056.25

12843.75

13068.75

12856.25

13081.25

12868.75

13093.75

12881.25

13106.25

12893.75

13118.75

12906.25

13131.25

12918.75

13143.75

(iv) 25 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

12712.5

12937.5

12737.5

12962.5

12762.5

12987.5

12787.5

13012.5

12812.5

13037.5

12837.5

13062.5

12862.5

13087.5

12887.5

13112.5

12912.5

13137.5

(v) 50 MHz bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

12725

12950

12775

13000

12825

13050

12875

13100

(q) Special provisions for incumbent low power, limited coverage systems in the band segments 12.2-12.7 GHz.

(1) As of May 23, 2002, the Commission no longer accepts applications for new stations in this service and incumbent stations may remain in service provided they do not cause harmful interference to any other primary services licensed in this band as described in paragraph (p) of this section. However, incumbent licensees and previously filed applicants may file applications for minor modifications and amendments (as defined in § 1.929 of this chapter) thereto, renewals, transfer of control, or assignment of license.

(2) Prior to December 8, 2000, notwithstanding any contrary provisions in this part, the frequency pairs 12.220/12.460 GHz, 12.260/12.500 GHz, 12.300/12.540 GHz and 12.340/12.580 GHz, were authorized for low power, limited coverage systems subject to the following provisions:

(i) Maximum equivalent isotropically radiated power (EIRP) shall be 55 dBm;

(ii) The rated transmitter output power shall not exceed 0.5 watts;

(iii) Frequency tolerance shall be maintained to within 0.01 percent of the assigned frequency;

(iv) Maximum beamwidth shall not exceed 4 degrees. However, the sidelobe suppression criteria contained in § 101.115 shall not apply, except that a minimum front-to-back ratio of 38 dB shall apply;

(v) Upon showing of need, a maximum bandwidth of 12 MHz may be authorized per frequency assigned;

(vi) Radio systems authorized under the provisions of this section shall have no more than three hops in tandem, except upon showing of need, but in any event the maximum tandem length shall not exceed 40 km (25 miles);

(vii) Interfering signals at the receiver antenna terminals of stations authorized under this section shall not exceed −90 dBm and −70 dBm respectively, for co-channel and adjacent channel interfering signals, and

(viii) Stations authorized under the provisions of this section shall provide the protection from interference specified in § 101.105 to stations operating in accordance with the provisions of this part.

(r) In the bands 17,700 to 19,700 and 24,250 to 25,250 MHz: Operation of stations using frequencies in these bands is permitted to the extent specified in this paragraph (r). Licensees, except 24 GHz band licensees, may use either a two-way link or one frequency of a frequency pair for a one-way link and must coordinate proposed operations pursuant to the procedures required in § 101.103. The use of the band 18.3-19.3 GHz is limited to grandfathered stations. Licensees in the fixed-satellite service may require that licensees of grandfathered stations operating in the bands 18.3-19.3 GHz cease operations in accordance with the provisions in § 101.95. (Note that stations authorized as of September 9, 1983, to use frequencies in the band 17.7-19.7 GHz may, upon proper application, continue to be authorized for such operations, consistent with the above conditions in this paragraph (r) related to the 18.3-19.3 GHz band.) Applicants for one-way spectrum from 17.7-18.3 GHz for multichannel video programming distribution are governed by paragraph (r)(6) of this section. Licensees are also allowed to use one-way (unpaired) channels in the 17.7-17.74 GHz sub-band to pair with other channels in the FS portions of the 18 GHz band where, for example, the return pair is already in use and therefore blocked or in TDD systems. Stations used for MVPD operations in the 17.7-17.8 GHz band must coordinate with the Federal Government before operating in the zones specified in § 1.924(e) of this chapter.

(1) 1.25 Megahertz maximum authorized bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

17700.625

NA

17701.875

NA

17703.125

NA

17704.375

NA

17705.625

NA

17706.875

NA

17708.125

NA

17709.375

NA

17710.625

NA

17711.875

NA

17713.125

NA

17714.375

NA

17715.625

NA

17716.875

NA

17718.125

NA

17719.375

NA

17721.625

NA

17722.875

NA

17723.125

NA

17724.375

NA

17725.625

NA

17726.875

NA

17728.125

NA

17729.375

NA

17730.625

NA

17731.875

NA

17733.125

NA

17734.375

NA

17735.625

NA

17736.875

NA

17738.125

NA

17739.375

NA

18060.625

19620.625

18061.875

19621.875

18063.125

19623.125

18064.375

19624.375

18065.625

19625.625

18066.875

19626.875

18068.125

19628.125

18069.375

19629.375

18070.625

19630.625

18071.875

19631.875

18073.125

19633.125

18074.375

19634.375

18075.625

19635.625

18076.875

19636.875

18078.125

19638.125

18079.375

19639.375

18080.625

19640.625

18081.875

19641.875

18083.125

19643.125

18084.375

19644.375

18085.625

19645.625

18086.875

19646.875

18088.125

19648.125

18089.375

19649.375

18090.625

19650.625

18091.875

19651.875

18093.125

19653.125

18094.375

19654.375

18095.625

19655.625

18096.875

19656.875

18098.125

19658.125

18099.375

19659.375

18100.625

19660.625

18101.875

19661.875

18103.125

19663.125

18104.375

19664.375

18105.625

19665.625

18106.875

19666.875

18108.125

19668.125

18109.375

19669.375

18110.625

19670.625

18111.875

19671.875

18113.125

19673.125

18114.375

19674.375

18115.625

19675.625

18116.875

19676.875

18118.125

19678.125

18119.375

19679.375

18120.625

19680.625

18121.875

19681.875

18123.125

19683.125

18124.375

19684.375

18125.625

19685.625

18126.875

19686.875

18128.125

19688.125

18129.375

19689.375

18130.625

19690.625

18131.875

19691.875

18133.125

19693.125

18134.375

19694.375

18135.625

19695.625

18136.875

19696.875

18138.125

19698.125

18139.375

19699.375

(2) 2 Megahertz maximum authorized bandwidth channel:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

18141.0

N/A

(3) 2.5 Megahertz maximum authorized bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

17701.25

N/A

17703.75

N/A

17706.25

N/A

17708.75

N/A

17711.25

N/A

17713.75

N/A

17716.25

N/A

17718.75

N/A

17721.25

N/A

17723.75

N/A

17726.25

N/A

17728.75

N/A

17731.25

N/A

17733.75

N/A

17736.25

N/A

17738.75

N/A

18061.25

19621.25

18063.75

19623.75

18066.25

19626.25

18068.75

19628.75

18071.25

19631.25

18073.75

19633.75

18076.25

19636.25

18078.75

19638.75

18081.25

19641.25

18083.75

19643.75

18086.25

19646.25

18088.75

19648.75

18091.25

19651.25

18093.75

19653.75

18096.25

19656.25

18098.75

19658.75

18101.25

19661.25

18103.75

19663.75

18106.25

19666.25

18108.75

19668.75

18111.25

19671.25

18113.75

19673.75

18116.25

19676.25

18118.75

19678.75

18121.25

19681.25

18123.75

19683.75

18126.25

19686.25

18128.75

19688.75

18131.25

19691.25

18133.75

19693.75

18136.25

19696.25

18138.75

19698.75

(4) [Reserved]

(5) 5 Megahertz maximum authorized bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

1560 Megahertz Separation

17702.5

N/A

17707.5

N/A

17712.5

N/A

17717.5

N/A

17722.5

N/A

17727.5

N/A

17732.5

N/A

17737.5

N/A

18062.5

19622.5

18067.5

19627.5

18072.5

19632.5

18077.5

19637.5

18082.5

19642.5

18087.5

19647.5

18092.5

19652.5

18097.5

19657.5

18102.5

19662.5

18107.5

19667.5

18112.5

19672.5

18117.5

19677.5

18122.5

19682.5

18127.5

19687.5

18132.5

19692.5

18137.5

19697.5

(6) MVPD use: Multichannel video programming distributors (MVPDs) can use any size channels for one-way operations in the 17.7-18.58 GHz band for any permissible communications specified for this band in § 101.603 provided that they have coordinated the appropriate emission designators and power, but must request contiguous spectrum (minus spectrum that is already licensed or prior coordinated in the area and thus blocked). MVPD systems must meet the efficiency requirements of § 101.141. Spectrum at 18.3-18.58 GHz is only available for grandfathered stations. See § 101.85.

(7) 10 Megahertz maximum authorized bandwidth channels:

Table 7 to Paragraph ( r )(7)

Transmit (receive)

(MHz)

Receive (transmit)

(MHz)

1560 Megahertz Separation

17705.0

N/A

17715.0

N/A

17725.0

N/A

17735.0

N/A

17745.0

19305.0

17755.0

19315.0

17765.0

19325.0

17775.0

19335.0

17785.0

19345.0

17795.0

19355.0

17805.0

19365.0

17815.0

19375.0

17825.0

19385.0

17835.0

19395.0

17845.0

19405.0

17855.0

19415.0

17865.0

19425.0

17875.0

19435.0

17885.0

19445.0

17895.0

19455.0

17905.0

19465.0

17915.0

19475.0

17925.0

19485.0

17935.0

19495.0

17945.0

19505.0

17955.0

19515.0

17965.0

19525.0

17975.0

19535.0

17985.0

19545.0

17995.0

19555.0

18005.0

19565.0

18015.0

19575.0

18025.0

19585.0

18035.0

19595.0

18045.0

19605.0

18055.0

19615.0

18065.0

19625.0

18075.0

19635.0

18085.0

19645.0

18095.0

19655.0

18105.0

19665.0

18115.0

19675.0

18125.0

19685.0

18135.0

19695.0

(8) 20 Megahertz maximum authorized bandwidth channels:

Table 8 to Paragraph ( r )(8)

Transmit (receive)

(MHz)

Receive (transmit)

(MHz)

1560 Megahertz Separation

17710.0

N/A

17730.0

N/A

17750.0

19310.0

17770.0

19330.0

17790.0

19350.0

17810.0

19370.0

17830.0

19390.0

17850.0

19410.0

17870.0

19430.0

17890.0

19450.0

17910.0

19470.0

17930.0

19490.0

17950.0

19510.0

17970.0

19530.0

17990.0

19550.0

18010.0

19570.0

18030.0

19590.0

18050.0

19610.0

18070.0

19630.0

18090.0

19650.0

18110.0

19670.0

18130.0

19690.0

(9) 30 Megahertz maximum authorized bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

1560 Megahertz Separation

17715.0

N/A

17755.0

19315.0

17785.0

19345.0

17815.0

19375.0

17845.0

19405.0

17875.0

19435.0

17905.0

19465.0

17935.0

19495.0

17965.0

19525.0

17995.0

19555.0

18025.0

19585.0

18055.0

19615.0

18085.0

19645.0

18115.0

19675.0

(10) 40 Megahertz maximum authorized bandwidth channels:

Table 10 to Paragraph ( r )(10)

Transmit (receive)

(MHz)

Receive (transmit)

(MHz)

1560 Megahertz Separation

17720.0

N/A

17760.0

19320.0

17800.0

19360.0

17840.0

19400.0

17880.0

19440.0

17920.0

19480.0

17960.0

19520.0

18000.0

19560.0

18040.0

19600.0

18080.0

19640.0

18120.0

19680.0

(11) 50 Megahertz maximum authorized bandwidth channels:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

1560 Megahertz Separation

17765.0

19325.0

17815.0

19375.0

17865.0

19425.0

17915.0

19475.0

17965.0

19525.0

18015.0

19575.0

18065.0

19625.0

18115.0

19675.0

(12) 80 Megahertz maximum authorized bandwidth channels:

Table 12 to Paragraph ( r )(12)

Transmit (receive)

(MHz)

Receive (transmit)

(MHz)

1560 Megahertz Separation

17740.0

N/A

17820.0

19380.0

17900.0

19460.0

17980.0

19540.0

18060.0

19620.0

(13) The frequencies on channels 35-39 listed in Table 13 are available for point-to-multipoint systems and are available by geographic area licensing in the 24 GHz Service to be used by the relevant licensee. The 24 GHz spectrum can be aggregated or disaggregated and does not have to be used in the transmit/receive manner shown except to comply with international agreements along the U.S. borders. Channels 35 through 39 are licensed in the 24 GHz Service by Economic Areas for any digital fixed service. Channels may be used at either nodal or subscriber station locations for transmit or receive but must be coordinated with adjacent channel and adjacent area users in accordance with the provisions of § 101.509. Stations also must comply with all applicable international coordination agreements.

Table 13 to Paragraph ( r )(13)

Channel No.

Nodal station

frequency band

(MHz) limits

User station

frequency band

(MHz) limits

35

24,250-24,290

25,050-25,090

36

24,290-24,330

25,090-25,130

37

24,330-24,370

25,130-25,170

38

24,370-24,410

25,170-25,210

39

24,410-24,450

25,210-25,250

(14) Special provision for low power systems in the 17,700-19,700 MHz band: Notwithstanding other provisions in 47 CFR part 101 and except for specified areas around Washington, DC, and Denver, Colorado, licensees of point-to-multipoint channel pairs 25-29 identified in paragraph (r)(13) of this section may continue to operate in accordance with the requirements of § 101.85 and may operate multiple low power transmitting devices within a defined service area. Operations are prohibited within 55 km when used outdoor and within 20 km when used indoor of the coordinates 38 deg.48′ N/76 deg.52′ W (Washington, DC area) and 39 deg.43′ N/104 deg.46′ W (Denver, Colorado area). The service area will be a 28 kilometer omni directional radius originating from specified center reference coordinates. The specified center coordinates must be no closer than 56 kilometers from any co-channel nodal station or the specified center coordinates of another co-channel system. Applicants/licensees do not need to specify the location of each individual transmitting device operating within their defined service areas. Such operations are subject to the following requirements on the low power transmitting devices:

(i) Power must not exceed one watt EIRP and 100 milliwatts transmitter output power;

(ii) A frequency tolerance of 0.001% must be maintained; and

(iii) The mean power of emissions shall be attenuated in accordance with the following schedule:

(A) In any 4 kHz band, the center frequency of which is removed from the center frequency of the assigned channel by more than 50 percent of the channel bandwidth and is within the bands 18,820-18,870 MHz or 19,160-19,210 MHz:

A = 35 + .003 (F−0.5B) dB

or,

80 dB (whichever is the lesser attenuation).

Where:

A = Attenuation (in decibels) below output power level contained within the channel for a given polarization.

B = Bandwidth of channel in kHz.

F = Absolute value of the difference between the center frequency of the 4 kHz band measured at the center frequency of the channel in kHz.

(B) In any 4 kHz band the center frequency of which is outside the bands 18.820-18.870 GHz: At least 43 + 10 log P (mean output power in watts) decibels.

(iv) Low power stations authorized in the band 18.8-19.3 GHz after June 8, 2000, are restricted to indoor use only. No new licenses will be authorized for applications received after April 1, 2002.

(s) 21,200 to 23,600 MHz: 50 MHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

(1) 2.5 MHz bandwidth channels:

21601.25

22801.25

21603.75

22803.75

21606.25

22806.25

21608.75

22808.75

21611.25

22811.25

21613.75

22813.75

21616.25

22816.25

21618.75

22818.75

21621.25

22821.25

21623.75

22823.75

21626.25

22826.25

21628.75

22828.75

21631.25

22831.25

21633.75

22833.75

21636.25

22836.25

21638.75

22838.75

21641.25

22841.25

21643.75

22843.75

21646.25

22846.25

21648.75

22848.75

21651.25

22851.25

21653.75

22853.75

21656.25

22856.25

21658.75

22858.75

21661.25

22861.25

21663.75

22863.75

21666.25

22866.25

21668.75

22868.75

21671.25

22871.25

21673.75

22873.75

21676.25

22876.25

21678.75

22878.75

21681.25

22881.25

21683.75

22883.75

21686.25

22886.25

21688.75

22888.75

21691.25

22891.25

21693.75

22893.75

21696.25

22896.25

21698.75

22898.75

21701.25

22901.25

21703.75

22903.75

21706.25

22906.25

21708.75

22908.75

21711.25

22911.25

21713.75

22913.75

21716.25

22916.25

21718.75

22918.75

21721.25

22921.25

21723.75

22923.75

21726.25

22926.25

21728.75

22928.75

21731.25

22931.25

21733.75

22933.75

21736.25

22936.25

21738.75

22938.75

21741.25

22941.25

21743.75

22943.75

21746.25

22946.25

21748.75

22948.75

21751.25

22951.25

21753.75

22953.75

21756.25

22956.25

21758.75

22958.75

21761.25

22961.25

21763.75

22963.75

21766.25

22966.25

21768.75

22968.75

21771.25

22971.25

21773.75

22973.75

21776.25

22976.25

21778.75

22978.75

21781.25

22981.25

21783.75

22983.75

21786.25

22986.25

21788.75

22988.75

21791.25

22991.25

21793.75

22993.75

21796.25

22996.25

21798.75

22998.75

22301.25

23501.25

22303.75

23503.75

22306.25

23506.25

22308.75

23508.75

22311.25

23511.25

22313.75

23513.75

22316.25

23516.25

22318.75

23518.75

22321.25

23521.25

22323.75

23523.75

22326.25

23526.25

22328.75

23528.75

22331.25

23531.25

22333.75

23533.75

22336.25

23536.25

22338.75

23538.75

22341.25

23541.25

22343.75

23543.75

22346.25

23546.25

22348.75

23548.75

22351.25

23551.25

22353.75

23553.75

22356.25

23556.25

22358.75

23558.75

22361.25

23561.25

22363.75

23563.75

22366.25

23566.25

22368.75

23568.75

22371.25

23571.25

22373.75

23573.75

22376.25

23576.25

22378.75

23578.75

22381.25

23581.25

22383.75

23583.75

22386.25

23586.25

22388.75

23588.75

22391.25

23591.25

22393.75

23593.75

22396.25

23596.25

22398.75

23598.75

(2) 5 MHz bandwidth channels:

21602.5

22802.5

21607.5

22807.5

21612.5

22812.5

21617.5

22817.5

21622.5

22822.5

21627.5

22827.5

21632.5

22832.5

21637.5

22837.5

21642.5

22842.5

21647.5

22847.5

21652.5

22852.5

21657.5

22857.5

21662.5

22862.5

21667.5

22867.5

21672.5

22872.5

21677.5

22877.5

21682.5

22882.5

21687.5

22887.5

21692.5

22892.5

21697.5

22897.5

21702.5

22902.5

21707.5

22907.5

21712.5

22912.5

21717.5

22917.5

21722.5

22922.5

21727.5

22927.5

21732.5

22932.5

21737.5

22937.5

21742.5

22942.5

21747.5

22947.5

21752.5

22952.5

21757.5

22957.5

21762.5

22962.5

21767.5

22967.5

21772.5

22972.5

21777.5

22977.5

21782.5

22982.5

21787.5

22987.5

21792.5

22992.5

21797.5

22997.5

22302.5

23502.5

22307.5

23507.5

22312.5

23512.5

22317.5

23517.5

22322.5

23522.5

22327.5

23527.5

22332.5

23532.5

22337.5

23537.5

22342.5

23542.5

22347.5

23547.5

22352.5

23552.5

22357.5

23557.5

22362.5

23562.5

22367.5

23567.5

22372.5

23572.5

22377.5

23577.5

22382.5

23582.5

22387.5

23587.5

22392.5

23592.5

22397.5

23597.5

(3) 10 MHz bandwidth channels:

21205

22405

21215

22415

21225

22425

21235

22435

21245

22445

21255

22455

21265

22465

21275

22475

21285

22485

21295

22495

21305

22505

21315

22515

21325

22525

21335

22535

21345

22545

21355

22555

21365

22565

21375

22575

21385

22585

21395

22595

21405

22605

21415

22615

21425

22625

21435

22635

21445

22645

21455

22655

21465

22665

21475

22675

21485

22685

21495

22695

21505

22705

21515

22715

21525

22725

21535

22735

21545

22745

21555

22755

21565

22765

21575

22775

21585

22785

21595

22795

21605 1

1 22805

21615 1

1 22815

21625 1

1 22825

21635 1

1 22835

21645 1

1 22845

21655 1

1 22855

21665 1

1 22865

21675 1

1 22875

21685 1

1 22885

21695 1

1 22895

21705 1

1 22905

21715 1

1 22915

21725 1

1 22925

21735 1

1 22935

21745 1

1 22945

21755 1

1 22955

21765 1

1 22965

21775 1

1 22975

21785 1

1 22985

21795 1

1 22995

21805 2

2 23005

21815 2

2 23015

21825 2

2 23025

21835 2

2 23035

21845 2

2 23045

21855 2

2 23055

21865 2

2 23065

21875 2

2 23075

21885 2

2 23085

21895 2

2 23095

21905 2

2 23105

21915 2

2 23115

21925 2

2 23125

21935 2

2 23135

21945 2

2 23145

21955 2

2 23155

21965 2

2 23165

21975 2

2 23175

21985 2

2 23185

21995 2

2 23195

22005

23205

22015

23215

22025 2

23225 2

22035

23235

22045

23245

22055

23255

22065

23265

22075 2

23275 2

22085

23285

22095

23295

22105

23305

22115

23315

22125

23325

22135

23335

22145

23345

22155

23355

22165

23365

22175

23375

22185

23385

22195

23395

22205

23405

22215

23415

22225

23425

22235

23435

22245

23445

22255

23455

22265

23465

22275

23475

22285

23485

22295

23495

22305 1

1 23505

22315 1

1 23515

22325 1

1 23525

22335 1

1 23535

22345 1

1 23545

22355 1

1 23555

22365 1

1 23565

22375 1

1 23575

22385 1

1 23585

22395 1

1 23595

(4) 20 MHz bandwidth channels:

21210

22410

21230

22430

21260

22460

21280

22480

21310

22510

21330

22530

21360

22560

21380

22580

21410

22610

21430

22630

21460

22660

21480

22680

21510

22710

21530

22730

21560

22760

21580

22780

21610 1

1 22810

21630 1

1 22830

21660 1

1 22860

21680 1

1 22880

21710 1

1 22910

21730 1

1 22930

21760 1

1 22960

21780 1

1 22980

21810 2

2 23010

21830 2

2 23030

21860 2

2 23060

21880 2

2 23080

21910 2

2 23110

21930 2

2 23130

21960 2

2 23160

21980 2

2 23180

22010

23210

22030

23230

22060

23260

22080

23280

22110

23310

22130

23330

22160

23360

22180

23380

22210

23410

22230

23430

22260

23460

22280

23480

22310 1

1 23510

22330 1

1 23530

22360 1

1 23560

22380 1

1 23580

(5) 30 MHz bandwidth channels:

21235

22435

21285

22485

21335

22535

21385

22585

21435

22635

21485

22685

21535

22735

21585

22785

21635 1

1 22835

21685 1

1 22885

21735 1

1 22935

21785 1

1 22985

21835 2

2 23035

21885 2

2 23085

21935 2

2 23135

21985 2

2 23185

22035

23235

22085

23285

22135

23335

22185

23385

22235

23435

22285

23485

22335 1

1 23535

22385 1

1 23585

(6) 40 MHz bandwidth channels:

21220

22420

21270

22470

21320

22520

21370

22570

21420

22620

21470

22670

21520

22720

21570

22770

21620 1

1 22820

21670 1

1 22870

21720 1

1 22920

21770 1

1 22970

21820 2

2 23020

21870 2

2 23070

21920 2

2 23120

21970 2

2 23170

22020

23220

22070

23270

22120

23320

22170

23370

22220

23420

22270

23470

22320 1

1 23520

22370 1

1 23570

(7) 50 MHz bandwidth channels:

21225

22425

21275

22475

21325

22525

21375

22575

21425

22625

21475

22675

21525

22725

21575

22775

21625 1

1 22825

21675 1

1 22875

21725 1

1 22925

21775 1

1 22975

21825 2

2 23025

21875 2

2 23075

21925 2

2 23125

21975 2

2 23175

22025 2

23225 2

22075 2

23275 2

22125

23325

22175

23375

22225

23425

22275

23475

22325 1

1 23525

22375 1

1 23575

1 Alternate channels. These channels are set aside for narrow bandwidth systems and should be used only if all other channels are blocked.

2 These frequencies may be assigned to low power systems, as defined in paragraph (8) of this section.

(8) Special provisions for low power, limited coverage systems in the 21.8-22.0 GHz and 23.0-23.2 GHz band segments. Notwithstanding any contrary provisions in this part, the frequency band segment 21.8-22.0 GHz paired with the frequency band segment 23.0-23.2 GHz may be authorized for low power, limited coverage systems subject to the following provisions:

(i) The maximum EIRP shall be 55 dBm and the rated transmitter output power shall not exceed 0.100 Watts;

(ii) In the band segments from 21.8-22.0 GHz and 23.0-23.2 GHz, the frequency tolerance for stations authorized on or before April 1, 2005 is 0.05%. Existing licensees and pending applicants on that date may continue to operate after that date with a frequency tolerance of 0.05%, provided that it does not cause harmful interference to the operation of any other licensee. The frequency tolerance of § 101.107(a) shall apply to stations applied for after April 1, 2005;

(iii) The maximum beamwidth shall not exceed 4 degrees;

(iv) The sidelobe suppression criteria contained in § 101.115 of this part shall not apply, except that a minimum front-to-back ratio of 38 dB shall apply;

(v) Upon showing of need, a maximum bandwidth of 50 MHz may be authorized per frequency assigned;

(vi) Radio systems authorized under the provisions of this section shall have no more than five hops in tandem, except upon showing of need, but in any event the maximum tandem length shall not exceed 40 km (25 miles);

(vii) Interfering signals at the antenna terminals of station authorized under this section shall not exceed −90 dBm and −70 dBm respectively, for co-channel and adjacent channel interfering signals; and

(viii) Stations authorized under the provisions of this section shall provide the protection from interference specified in § 101.105 to stations operating in accordance with the provisions of this part.

(t) 29,100-29,250; 31,000-31,300 MHz. These frequencies are available for LMDS systems. Each assignment will be made on a BTA service area basis, and the assigned spectrum may be subdivided as desired by the licensee.

(u) 31,000-31,300 MHz. Stations licensed in this band prior to March 11, 1997, may continue their authorized operations, subject to license renewal, on the condition that harmful interference will not be caused to LMDS operations licensed in this band after June 30, 1997. Non-LMDS stations licensed after March 11, 1997, based on applications refiled no later than June 26, 1998 are unprotected and subject to harmful interference from each other and from stations licensed prior to March 11, 1997, and are licensed on a secondary basis to LMDS. In the sub-bands 31,000-31,075 MHz and 31,225-31,300 MHz, stations initially licensed prior to March 11, 1997, except in LTTS, and LMDS operations authorized after June 30, 1997, are equally protected against harmful interference from each other in accordance with the provisions of § 101.103(b). For stations, except in LTTS, permitted to relocate to these sub-bands, the following paired frequencies are available:

Transmit (receive) (MHz)

Receive (transmit) (MHz)

(1) 25 MHz Authorized Bandwidth Channels

31,012.5

31,237.5

31,037.5

31,262.5

31,062.5

31,287.5

(2) 75 MHz Authorized Bandwidth Channel

31,037.5

31,275.0

Note to ( u ):

These channels are assigned for use within a rectangular service area to be described in the application by the maximum and minimum latitudes and longitudes. Such service area must be as small as practical consistent with the local service requirements of the carrier. These frequency plans may be subdivided as desired by the licensee and used within the service area as desired without further authorization subject to the terms and conditions set forth in § 101.149. These frequencies may be assigned only where it is shown that the applicant will have reasonable projected requirements for a multiplicity of service points or transmission paths within the area.

(v) [Reserved]

(w) Fixed systems licensed, in operation, or applied for in the 3,700-4,200, 5925-6425, 6,525-6,875, 10,550-10,680, and 10,700-11,700 MHz bands prior to July 15, 1993, are permitted to use channel plans in effect prior to that date, including adding channels under those plans.

(x) Operations on other than the listed frequencies may be authorized where it is shown that the objectives or requirements of the interference criteria prescribed in § 101.105 could not otherwise be met to resolve the interference problems.

(y) Special requirements for operations in the band 29.1-29.25 GHz. (1)(i) LMDS receive stations operating on frequencies in the 29.1-29.25 GHz band within a radius of 75 nautical miles of the geographic coordinates provided by a non-GSO MSS licensee pursuant to paragraphs (c)(2) or (c)(3)(i) of this section (the “feeder link earth station complex protection zone”) shall accept any interference caused to them by such earth station complexes and shall not claim protection from such earth station complexes.

(ii) LMDS licensees operating on frequencies in the 29.1-29.25 GHz band outside a feeder link earth station complex protection zone shall cooperate fully and make reasonable efforts to resolve technical problems with the non-GSO MSS licensee to the extent that transmissions from the non-GSO MSS operator's feeder link earth station complex interfere with an LMDS receive station.

(2) No more than 15 days after the release of a public notice announcing the commencement of LMDS auctions, feeder link earth station complexes to be licensed pursuant to Section 25.257 shall be specified by a set of geographic coordinates in accordance with the following requirements: no feeder link earth station complex may be located in the top eight (8) metropolitan statistical areas (“MSAs”), ranked by population, as defined by the Office of Management and Budget as of June 1993, using estimated populations as of December 1992; two (2) complexes may be located in MSAs 9 through 25, one of which must be Phoenix, AZ (for a complex at Chandler, AZ); two (2) complexes may be located in MSAs 26 to 50; three (3) complexes may be located in MSAs 51 to 100, one of which must be Honolulu, Hawaii (for a complex at Waimea); and the three (3) remaining complexes must be located at least 75 nautical miles from the borders of the 100 largest MSAs or in any MSA not included in the 100 largest MSAs. Any location allotted for one range of MSAs may be taken from an MSA below that range.

(3)(i) Any non-GSO MSS licensee may at any time specify sets of geographic coordinates for feeder link earth station complexes with each earth station contained therein to be located at least 75 nautical miles from the borders of the 100 largest MSAs.

(ii) For purposes of paragraph (c)(3)(i) of this section, non-GSO MSS feeder link earth station complexes shall be entitled to accommodation only if the affected non-GSO MSS licensee preapplies to the Commission for a feeder link earth station complex or certifies to the Commission within sixty days of receiving a copy of an LMDS application that it intends to file an application for a feeder link earth station complex within six months of the date of receipt of the LMDS application.

(iii) If said non-GSO MSS licensee application is filed later than six months after certification to the Commission, the LMDS and non-GSO MSS entities shall still cooperate fully and make reasonable efforts to resolve technical problems, but the LMDS licensee shall not be obligated to re-engineer its proposal or make changes to its system.

(4) LMDS licensees or applicants proposing to operate hub stations on frequencies in the 29.1-29.25 GHz band at locations outside of the 100 largest MSAs or within a distance of 150 nautical miles from a set of geographic coordinates specified under paragraph (c)(2) or (c)(3)(i) of this section shall serve copies of their applications on all non-GSO MSS applicants, permitees or licensees meeting the criteria specified in § 25.257(a). Non-GSO MSS licensees or applicants shall serve copies of their feeder link earth station applications, after the LMDS auction, on any LMDS applicant or licensee within a distance of 150 nautical miles from the geographic coordinates that it specified under paragraph (c)(2) or (c)(3)(i) of this section. Any necessary coordination shall commence upon notification by the party receiving an application to the party who filed the application. The results of any such coordination shall be reported to the Commission within sixty days. The non-GSO MSS earth station licensee shall also provide all such LMDS licensees with a copy of its channel plan.

(z) 71,000-76,000 MHz; 81,000-86,000 MHz; 92,000-94,000 MHz; 94,100-95,000 MHz. (1) Those applicants who are approved in accordance with FCC Form 601 will each be granted a single, non-exclusive nationwide license. Site-by-site registration is on a first-come, first-served basis. Registration will be in the Universal Licensing System until the Wireless Telecommunications Bureau announces by public notice, the implementation of a third-party database. See 47 CFR 101.1523. Links may not operate until NTIA approval is received. Licensees may use these bands for any point-to-point non-broadcast service.

(2) Prior links shall be protected using the interference protection criteria set forth in section 101.105. For transmitters employing digital modulation techniques and operating in the 71,000-76,000 MHz or 81,000-86,000 MHz bands, the licensee must construct a system that meets a minimum bit rate of 0.125 bits per second per Hertz of bandwidth. For transmitters that operate in the 92,000-94,000 MHz or 94,100-95,000 MHz bands, licensees must construct a system that meets a minimum bit rate of 1.0 bit per second per Hertz of bandwidth. If it is determined that a licensee has not met these loading requirements, then the database will be modified to limit coordination rights to the spectrum that is loaded and the licensee will lose protection rights on spectrum that has not been loaded.

(3) The following channel plans apply to the 71,000-76,000 MHz and 81,000-86,000 MHz bands:

(i) 250 MHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

71250

81250

71500

81500

71750

81750

72000

82000

72250

82250

72500

82500

72750

82750

73000

83000

73250

83250

73500

83500

73750

83750

74000

84000

74250

84250

74500

84500

74750

84750

75000

85000

75250

85250

75500

85500

75750

85750

(ii) 500 MHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

71375

81375

71875

81875

72375

82375

72875

82875

73375

83375

73875

83875

74375

84375

74875

84875

75375

85375

(iii) 750 MHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

71500

81500

72250

82250

73000

83000

73750

83750

74500

84500

75250

85250

(iv) 1 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

71625

81625

72625

82625

74125

84125

75125

85125

(v) 1.25 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

71750

81750

73000

83000

74250

84250

(vi) 1.5 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

71875

81875

74375

84375

(vii) 1.75 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72000

82000

74500

84500

(viii) 2.0 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72125

82125

74625

84625

(ix) 2.25 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72250

82250

74750

84750

(x) 2.5 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72375

82375

(xi) 2.75 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72500

82500

(xii) 3 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72625

82625

(xiii) 3.25 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72750

82750

(xiv) 3.5 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

72875

82875

(xv) 3.75 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

73000

83000

(xvi) 4 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

73125

83125

(xvii) 4.25 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

73250

83250

(xviii) 4.5 GHz authorized bandwidth.

Transmit (receive) (MHz)

Receive (transmit) (MHz)

73375

83375

§ 101.151 Use of signal boosters.

Private operational-fixed licensees authorized to operate multiple address systems in the 928-929/952-960 MHz and 932-932.5/941-941.5 MHz bands may employ signal boosters at fixed locations in accordance with the following criteria:

(a) The amplified signal is retransmitted only on the exact frequency(ies) of the originating base, fixed, mobile, or portable station(s). The booster will fill in only weak signal areas and cannot extend the system's normal signal coverage area.

(b) Class A narrowband signal boosters must be equipped with automatic gain control circuitry which will limit the total effective radiated power (ERP) of the unit to a maximum of 5 watts under all conditions. Class B broadband signal boosters are limited to 5 watts ERP for each authorized frequency that the booster is designed to amplify.

(c) Class A narrowband boosters must meet the out-of-band emission limits of § 101.111 for each narrowband channel that the booster is designed to amplify. Class B broadband signal boosters must meet the emission limits of § 101.111 for frequencies outside of the booster's design passband.

(d) Class B broadband signal boosters are permitted to be used only in confined or indoor areas such as buildings, tunnels, underground areas, etc., or remote areas, i.e., areas where there is little or no risk of interference to other users.

(e) The licensee is given authority to operate signal boosters without separate authorization from the Commission. Certificated equipment must be employed and the licensee must ensure that all applicable rule requirements are met.

(f) Licensees employing either Class A narrowband or Class B broadband signal boosters as defined in § 101.3 are responsible for correcting any harmful interference that the equipment may cause to other systems.

§ 101.201 Station inspection.

The licensee of each station authorized in the radio services included in this part must make the station available for inspection by representatives of the Commission at any reasonable hour.

§ 101.203 Communications concerning safety of life and property.

(a) Handling and transmission of messages concerning the safety of life or property which is in imminent danger must be afforded priority over other messages.

(b) No person may knowingly cause to be transmitted any false or fraudulent message concerning the safety of life or property, or refuse upon demand immediately to relinquish the use of a radio circuit to enable the transmission of messages concerning the safety of life or property which is in imminent danger, or knowingly interfere or otherwise obstruct the transmission of such messages.

§ 101.205 Operation during emergency.

The licensee of any station in these services may, during a period of emergency in which normal communication facilities are disrupted as a result of hurricane, flood, earthquake, or similar disaster, utilize such station for emergency communication service in a manner other than that specified in the instrument of authorization: Provided:

(a) That as soon as possible after the beginning of such emergency use, notice be sent to the Commission stating the nature of the emergency and the use to which the station is being put;

(b) That the emergency use of the station must be discontinued as soon as substantially normal communication facilities are again available;

(c) That the Commission must be notified immediately when such special use of the station is terminated;

(d) That, in no event, will any station engage in emergency transmission on frequencies other than, or with power in excess of, that specified in the instrument of authorization or as otherwise expressly provided by the Commission, or by law; and

(e) That the Commission may, at any time, order the discontinuance of any such emergency communication.

§ 101.207 Suspension of transmission.

Transmission must be suspended immediately upon detection by the station or operator licensee or upon notification by the Commission of a deviation from the technical requirements of the station authorization and must remain suspended until such deviation is corrected, except for transmission concerning the immediate safety of life or property, in which case transmission must be suspended immediately after the emergency is terminated.

§ 101.209 Operation of stations at temporary fixed locations for communication between the United States and Canada or Mexico.

Stations authorized to operate at temporary fixed locations may not be used for transmissions between the United States and Canada, or the United States and Mexico, without prior specific notification to, and authorization from, the Commission. Notification of such intended usage of the facilities should include a detailed showing of the operation proposed, including the parties involved, the nature of the communications to be handled, the terms and conditions of such operations, the time and place of operation, such other matters as the applicant deems relevant, and a showing as to how the public interest, convenience and necessity would be served by the proposed operation. Such notification should be given sufficiently in advance of the proposed date of operation to permit any appropriate correlation with the respective foreign government involved (see §§ 101.31, 101.811, 101.813, and 101.815).

§ 101.213 Station identification.

Stations in these services are exempt from the requirement to identify transmissions by call sign or any other station identifier.

§ 101.215 Posting of station authorization and transmitter identification cards, plates, or signs.

(a) Each licensee shall post at the station the name, address and telephone number of the custodian of the station license or other authorization if such license or authorization is not maintained at the station.

(b) The requirements in paragraph (a) of this section do not apply to remote stations using frequencies listed in § 101.147(b).

§ 101.217 Station records.

Each licensee of a station subject to this part shall maintain records in accordance with the following:

(a) For all stations, the results and dates of transmitter measurements and the name of the person or persons making the measurements;

(b) For all stations, when service or maintenance duties are performed, which may affect their proper operation, the responsible operator shall sign and date an entry in the station record concerned, giving:

(1) Pertinent details of all transmitter adjustments performed by him or under his supervision; and

(2) His name and address, provided that this information, so long as it remains unchanged, is not required to be repeated in the case of a person who is regularly employed as operator on a full-time basis at the station.

(c) The records shall be kept in an orderly manner, and in such detail that the data required are readily available. Key letters or abbreviations may be used if proper meaning or explanation is set forth in the record.

(d) Each entry in the records of each station shall be signed by a person qualified to do so, having actual knowledge of the facts to be recorded.

(e) No record or portion thereof shall be erased, obliterated, or willfully destroyed within the required retention period. Any necessary correction may be made only by the person originating the entry, who shall strike out the erroneous portion, initial the correction made and indicate the date of correction.

(f) Records required by this part shall be retained by the licensee for a period of at least one year.

§ 101.301 National defense; free service.

Any common carrier authorized under the rules of this part may render to any agency of the United States Government free service in connection with the preparation for the national defense. Every such carrier rendering any such free service must make and file, in duplicate, with the Commission, on or before the 31st of July and on or before the 31st day of January in each year, reports covering the periods of 6 months ending on the 30th of June and the 31st of December, respectively, next prior to said dates. These reports must show the names of the agencies to which free service was rendered pursuant to this rule, the general character of the communications handled for each agency, and the charges in dollars which would have accrued to the carrier for such service rendered to each agency if charges for such communications had been collected at the published tariff rates.

§ 101.305 Discontinuance, reduction or impairment of service.

(a) If the public communication service provided by a station in the Common Carrier Radio Services, the Local Multipoint Distribution Service or 24 GHz Service is involuntarily discontinued, reduced or impaired for a period exceeding 48 hours, the station licensee must promptly notify the Commission. In every such case, the licensee must furnish full particulars as to the reasons for such discontinuance, reduction or impairment of service, including a statement as to when normal service is expected to be resumed. When normal service is resumed, prompt notification thereof must be given Commission.

(b) No station licensee subject to title II of the Communications Act of 1934, as amended, may voluntarily discontinue, reduce or impair public communication service to a community or part of a community without obtaining prior authorization from the Commission pursuant to the procedures set forth in part 63 of this chapter. In the event that permanent discontinuance of service is authorized by the Commission, the station license is terminated; except that station licenses in the Local Multipoint Distribution Service and 24 GHz Service are not terminated if the discontinuance is a result of a change of status by the licensee from common carrier to non-common carrier pursuant to § 1.929 of this chapter.

(c) Any licensee not subject to title II of the Communications Act of 1934, as amended, who voluntarily discontinues, reduces or impairs public communication service to a community or a part of a community must notify the Commission within 7 days thereof. In the event of permanent discontinuance of service, the station license is automatically terminated; except that station licenses in the Local Multipoint Distribution Service and 24 GHz Service are not terminated if the discontinuance is a result of a change of status by the licensee from non-common carrier to common carrier pursuant to § 1.929 of this chapter.

(d) If any common carrier radio frequency should not be used to render any service as authorized during a consecutive period of twelve months at any time after construction is completed under circumstances that do not fall within the provisions of paragraph (a), (b), or (c) of this section, or, if removal of equipment or facilities has rendered the station not operational, the licensee must, within thirty days of the end of such period of nonuse:

(1) Cancel the station license (or licenses); or

(2) File an application for modification of the license (or licenses) to delete the unused frequency (or frequencies); or

(3) Request waiver of this rule and demonstrate either that the frequency will be used (as evidenced by appropriate requests for service, etc.) within six months of the end of the initial period of nonuse, or that the frequency will be converted to allow rendition of other authorized public services within one year of the end of the initial period of nonuse by the filing of appropriate applications within six months of the end of the period of nonuse.

§ 101.601 Eligibility.

Any person, or any governmental entity or agency, eligible for licensing in a radio service or pool under part 80, 87, or 90 of this chapter or any person proposing to provide communications service to such persons, governmental entities or agencies is eligible to hold a license under this subpart. This subpart shall not apply to stations offering MVDDS in the 12.2-12.7 GHz band.

§ 101.603 Permissible communications.

(a) Except as provided in paragraph (b) of this section, stations in this radio service may transmit communications as follows:

(1) On frequencies below 21,200 MHz, licensees may transmit their own communications, including the transmission of their products and information services, to their customers except that the distribution of video entertainment material to customers is permitted only as indicated in § 101.101 and paragraph (a)(2) of this section.

(2) In the frequency bands 6425-6525 MHz, 17,700-18,580 MHz, and on frequencies above 21,200 MHz, licensees may deliver any of their own products and services to any receiving location;

(3) Licensees may transmit the communications of their parent corporation, or of another subsidiary of the same parent, or their own subsidiary where the party to be served is regularly engaged in any of the activities that constitute the basis for eligibility to use the frequencies assigned;

(4) Licensees may transmit the communications of other parties in accordance with § 101.135;

(5) Licensees may transmit emergency communications unrelated to their activities in accordance with § 101.205;

(6) Licensees may transmit communications on a commercial basis to eligible users, among different premises of a single eligible user, or from one eligible user to another as part of transmissions by Digital Electronic Message Service systems on the frequencies provided for this purpose;

(7) Licensees may transmit program material from one location to another;

(b) Stations licensed in this radio service shall not:

(1) Render a common carrier service of any kind. However, licensees are allowed to lease excess capacity to common carriers. In addition, Specialized Mobile Radio (SMR) licensees reclassified by the Commission as Commercial Mobile Radio Services (CMRS), that were formerly private land mobile radio service providers, may continue to utilize private operational fixed microwave systems licensed prior to April 1, 2003 for their land mobile connecting facilities.

(2) Transmit program material for use in connection with broadcasting, except as provided in paragraphs (a)(2), and (a)(7)) of this section; and/or

(3) Be used to provide the final RF link in the chain of transmission of program material to multichannel video programming distributors, except in the frequency bands 6425-6525 MHz and 17,700-18,580 MHz and on frequencies above 21,200 MHz.

§ 101.701 Eligibility.

(a) Authorizations for stations in this service will be issued to existing and proposed common carriers. Applications will be granted only in cases in which it is shown that:

(1) The applicant is legally, technically, financially and otherwise qualified to render the proposed service;

(2) There are frequencies available to enable the applicant to render a satisfactory service; and

(3) The public interest, convenience, and necessity would be served by a grant thereof.

(b) If the content is originated, selected, controlled, or otherwise substantively influenced by the applicant, licensee, or a closely affiliated entity, no station or radio frequency in this service will be authorized, or may be utilized, to transmit any closed circuit television signals or television signals other than broadcast television signals, unless:

(1) Such service is otherwise permitted for a specific length of time by grant of an acceptable petition for waiver of this rule; or

(2) Such service is otherwise permitted by a condition in the applicable instrument of authorization; or

(3) Such service is provided pursuant to applicable FCC tariff and is temporary and occasional intra-company television communication for management, network supervision, or other internal carrier functions. For purposes of this paragraph, an entity will be considered to be “closely affiliated” with an applicant if it is in a parent-subsidiary relationship, or both are commonly controlled, or they have any common officers or management employees.

(c) Applications for stations or frequencies that will be used primarily to relay broadcast television signals must include a certification that at least fifty percent of the customers (or points of service) on the microwave system involved, including those served through an interconnecting carrier(s), receiving applicant's service, will not be related or affiliated in any degree with the applicant, and that the proposed usage by such customers, in terms of hours of use and channels delivered, must constitute at least fifty percent of the usage of the applicant's microwave service. Applications that do not contain these certifications will be returned as unacceptable for filing.

§ 101.703 Permissible communications.

Stations in this service are authorized to render any kind of communication service provided for in the legally applicable tariffs of the carrier, unless otherwise directed in the applicable instrument of authorization or limited by § 101.147 or §§ 101.111 and 101.113.

§ 101.801 Eligibility.

Authorizations for stations in this service will be granted to existing and proposed communication common carriers. Applications will be granted only in cases where it is shown that:

(a) The applicant is legally, financially, technically and otherwise qualified to render the proposed service;

(b) There are frequencies available to enable the applicant to render a satisfactory service; and

(c) The public interest, convenience or necessity would be served by a grant thereof.

§ 101.803 Frequencies.

(a) Frequencies in the following bands are available for assignment to television pickup and television non-broadcast pickup stations in this service:

6,425 to 6,525 MHz. (6)

11,700 to 12,200 MHz. (3)

13,200 to 13,250 MHz. (1)

14,200 to 14,400 MHz. (8)

21,200 to 22,000 MHz. (1), (2), (4), (5)

22,000 to 23,600 MHz. (1), (2), (5)

31,000 to 31,300 MHz. (7)

Notes

(1) This frequency band is shared with fixed and mobile stations licensed under this and other parts of the Commission's Rules.

(2) This frequency band is shared with Government stations.

(3) This frequency band is shared, on a secondary basis, with stations in the broadcasting-satellite and fixed-satellite services. As of March 1, 2005, no new LTTS operators will be licensed in the 11.7-12.2 GHz band. LTTS operators authorized prior to March 1, 2005 may continue to operate in 11.7-12.2 GHz band until their license expires; no existing LTTS licenses will be renewed in the 11.7-12.2 GHz band.

(4) This frequency band is shared with stations in the earth-exploration satellite service.

(5) This frequency band is shared with the common carrier and private-operational fixed point-to-point microwave services.

(6) This band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of this chapter, and subpart H of this part.

(7) As of June 30, 1997, frequencies in this band only are available for assignment to LMDS radio stations, except for non-LMDS radio stations authorized pursuant to applications refiled no later than June 26, 1998. Stations authorized prior to June 30, 1997, may continue to operate within the existing terms of the outstanding licenses, subject to renewal. Non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998 shall operate on an unprotected basis and subject to harmful interference from similarly licensed stations or stations licensed prior to June 30, 1997, and on a secondary basis to LMDS radio stations.

(8) The maximum power for the local television transmission service in the 14.2-14.4 GHz band is + 45 dBW except that operations are not permitted within 1.5 degrees of the geostationary orbit. As of March 1, 2005, no new LTTS operators will be licensed in the 14.2-14.4 GHz band. LTTS operators authorized prior to March 1, 2005 may continue to operate in 14.2-14.4 GHz band until their license expires; no existing LTTS licenses will be renewed in the 11.7-12.2 GHz band.

(b) Communications common carriers in the Local Television Transmission Service may be assigned frequencies listed in §§ 74.602(a), 78.18(a)(6), and 78.18(a)(7) of this chapter to provide service to television broadcast stations, television broadcast network-entities, cable system operators, and cable network-entities. Frequency availability is subject to the provisions of § 74.604 of this chapter and the use of the facility is limited to the permissible uses described in §§ 74.631 and 78.11 of this chapter. Operations on these frequencies are subject to the technical provisions of part 74, subpart F, and part 78, subpart D of this chapter.

(c) [Reserved]

(d) Frequencies in the following bands are available for assignment to television STL stations in this service:

3,700 to 4,200 MHz (1)

5,925 to 6,425 MHz (1),(5)

10,700 to 11,700 MHz (1),(6)

11,700 to 12,100 MHz (3)

13,200 to 13,250 MHz (2)

21,200 to 22,000 MHz (2),(4),(7),(8)

22,000 to 23,600 MHz (2),(6),(8)

31,000 to 31,300 MHz (9)

Notes

(1) This frequency band is shared with stations in the Point to Point Microwave Radio Service and, in United States Possessions in the Caribbean area, with stations in the International Fixed Radiocommunications Services. For 3,700-4,200 MHz frequencies are only available for locations outside the contiguous United States and applications for new permanent or temporary facilities in this band will not be accepted for locations in the contiguous United States. In the contiguous United States, licensees of existing licenses, as of April 19, 2018, for permanent point-to-point Fixed Service links have until December 5, 2023, to self-relocate their point-to-point links out of the 3,700-4,200 MHz band.

(2) This frequency band is shared with fixed and mobile stations licensed under this and other parts of the Commission's rules.

(3) This frequency band is shared with space stations (space to earth) in the fixed-satellite service. As of March 1, 2005, no new LTTS operators will be licensed in the 11.7-12.2 GHz band. LTTS operators authorized prior to March 1, 2005 may continue to operate in 11.7-12.2 GHz band until their license expires; no existing LTTS licenses will be renewed in the 11.7-12.2 GHz band.

(4) This frequency band is shared with Government stations.

(5) This frequency band is shared with earth stations (earth to space) in the fixed-satellite services.

(6) The band segments 10.95-11.2 and 11.45-11.7 GHz are shared with space stations (space to earth) in the fixed-satellite service.

(7) This frequency band is shared with space stations (space to earth) in the earth exploration satellite service.

(8) This frequency band is shared with the common carrier and private-operational fixed point-to-point microwave services.

(9) As of June 30, 1997, frequencies in this band only are available for assignment to LMDS radio stations, except for non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998. Stations authorized prior to June 30, 1997, may continue to operate within the existing terms of the outstanding licenses, subject to renewal. Non-LMDS stations authorized pursuant to applications refiled no later than June 26, 1998 shall operate on an unprotected basis and subject to harmful interference from each other or stations licensed prior to June 30, 1997, and on a secondary basis to LMDS radio stations.

(e) 6425 to 6525 MHz—Mobile Only. Paired and un-paired operations permitted. Use of this spectrum for direct delivery of video programs to the general public or for multi-channel cable distribution is not permitted. This band is co-equally shared with mobile stations licensed pursuant to parts 74 and 78 of this chapter. The following channel plans apply.

(1) 1 MHz maximum authorized bandwidth channels.

Transmit (or receive) (MHz)

Receive (or transmit) (MHz)

6425.5

6475.5

6450.5

6500.5

(2) 8 MHz maximum authorized bandwidth channels.

Transmit (or receive) (MHz)

Receive (or transmit) (MHz)

6430.0

6480.0

6438.0

6488.0

6446.0

6496.0

6455.0

6505.0

6463.0

6513.0

6471.0

6521.0

(3) 25 MHz maximum authorized bandwidth channels.

Transmit (or receive) (MHz)

Receive (or transmit) (MHz)

6437.5

6487.5

6462.5

6512.5

(f) The frequency 27.255 MHz in the 27.23-27.28 MHz band is allocated for assignment to microwave auxiliary stations in this service on a shared basis with other radio services. Assignments to stations on this frequency will not be protected from such interference as may be experienced from the emissions of industrial, scientific and medical equipment operating on 27.12 MHz in accordance with § 2.106 of this chapter.

§ 101.805 Assignment of frequencies to mobile stations.

The assignment of frequencies to mobile stations in this service will not be limited to a single licensee within any area. However, geographical limits within which mobile units may operate may be imposed by the Commission.