ITU-R INFORME M 1163 SPANISH-1990 Coordination area of an earth station of the fixed-satellite service sharing the same frequency band with the radionavigation service《地球的固定卫星服务共享的.pdf

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ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

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