Procedure for the identification of non-geostationary-satellite orbit satellites causing interference into an operating geostationary-satellite orbit earth station
The ITU Radiocommunication Assembly considering a) that the World Radiocommunication Conference (Istanbul, 2000) (WRC-2000) adopted a combination of single-entry validation, single-entry operational and, for certain antenna sizes single-entry additional operational downlink equivalent power-flux density (epfd↓) limits contained in Article 22 of the Radio Regulations (RR), along with the aggregate limits in Resolution 76 (WRC-2000), which apply to non-geostationary-satellite orbit (non-GSO) fixed-satellite service (FSS) systems to protect GSO networks in parts of the frequency range 10.7-30 GHz; b) that Resolution 137 (WRC-2000) invites ITU-R to develop, with the aim of completion by 2003, methodologies to assess the interference levels (through measurement for operational limits) that would be produced by a non-GSO FSS system in the frequency bands specified in Tables 22-4A, 22-4B and 22-4C which may be used by administrations to verify compliance of an individual non-GSO FSS system with the operational limits contained in Tables 22-4A, 22-4B and 22-4C. This necessitates identification of the system concerned; c) that Resolution 137 (WRC-2000) further recognizes that, taking into account RR Nos. 22.5H and 22.5I, it is important to discourage violations of the operational epfd↓limits by a non-GSO FSS system, but that, if a violation occurs, it should be corrected in the most expeditious manner; d) that a procedure is needed to identify a non-GSO FSS satellite close to or within the main beam of an operational GSO earth station where it may generate interference.