ITU-R RAPPORT BS 1059-1 FRENCH-1990 Characteristics of single-sideband systems in HF broadcasting《单边带系统在高频(HF)广播中的特性》.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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