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文章针对E&M信令进行了概述,分析了基于E&M信令分析VHF(甚高频)通信系统PTT的工作方式,并探析了Ⅴ类E&M信令下PTT信号的传输控制,希望能够为我国民航事业的长足、稳定发展做出应有的贡献。
This paper gives an overview of E & M signaling, analyzes the operation of PTT based on E & M signaling and analyzes the transmission control of PTT signal under the V class E & M signaling. It is hoped that it can be used in China’s civil aviation industry The long-term, steady development to make its due contribution.