Article 3
Member States shall ensure that, in compliance with the technical conditions set out in the Annex, the terrestrial systems referred to in Article 1 protect the following systems appropriately and do not constrain their future evolution and development: (a) systems in the Radio Astronomy Service operating within the 42,5-43,5 GHz frequency band; (b) satellite systems in the Fixed Satellite Service operating within the 40,5-42,5 GHz frequency band for space-to-Earth communications and within the 42,5-43,5 GHz frequency band for Earth-to-space communications; (c) satellite systems in the Fixed Satellite Service and Mobile Satellite Service operating within the 39,5-40,5 GHz frequency band for space-to-Earth communications.