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一、引言本文介绍了一个采用超基带载波机在视上开通12/60个话路的微波超基带传输系统,用以传输公务信号和道旁业务。为保证通信的高质量和可靠性,微波接力通信系统需要监测和维护,因而在终端站(主站) 和接力站间需传送公务信号,包括站内联络电话、终端站内直通电话、远程监控信号以及倒换信号等。此外,微波线路各站,有时还需要传送主要业务之外的道旁业务信号。在传
I. INTRODUCTION This paper introduces a microwave ultra-baseband transmission system that uses 12/60 voice channels with super baseband carrier to visually transmit traffic signals and roadside services. In order to ensure the high quality and reliability of communication, the microwave relay communication system needs to be monitored and maintained. Therefore, it is necessary to transmit official signals between terminal stations (master stations) and relay stations, including station contact numbers, end station direct calls, remote monitoring signals, Switching signals and so on. In addition, the microwave line stations, sometimes also need to send the main business outside the roadside business signal. In the biography