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目前,静止卫星的频段利用情况如下:6/4 GH_z 在国内和国际通信中用得最多,特别是3.7～4.2GH_z(下行)和6 GH_z(上行),矛盾更突出。1979年分配的4.5～4.8GH_z,根据1985年世界无线电行政大会第一次会议(WARC—ORB(1))决定列入计划使用频段,于1985年8月冻结使用。14/11GH_z 是仅次于6/4 GH_z的好用频段,发达国家使用较多。它们使用1979年分配的500MH_z带宽(10.9～11.2GH_z和11.4
At present, the utilization of the frequency bands of the geostationary satellites is as follows: 6/4 GH_z is most frequently used in domestic and international communications, especially with 3.7 to 4.2 GHZ (downlink) and 6 GH_z (uplink), with more prominent contradictions. The distribution of 4.5-4.8GH_z in 1979 was included in the planned frequency band according to the decision of WARC-ORB (1) at the first meeting of the World Conference on Radio Administration in 1985, and was frozen in August 1985. 14 / 11GH_z is second only to the 6/4 GH_z good frequency band, developed countries use more. They use the 500 MHZ bandwidth allocated in 1979 (10.9-11.2 GHZ and 11.4