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1.前言早先,增音室(或控制室)的音频信号通常是用传音电缆传送到发射台的。近年来,由于微波系统具有经济、可靠、灵活、抗干扰性强、质量好和工程期短等优点,采用微波传送广播节目也就日益增多。为了节省投资、便于维护管理、早日开播,我局采用了北京广播器
1. INTRODUCTION Earlier, audio signals from an amplification room (or control room) were usually transmitted to the launch pad by acoustic cables. In recent years, due to the advantages of economical, reliable, flexible, strong anti-interference, good quality and short construction period, the microwave system has also been used to transmit radio programs. In order to save investment, facilitate maintenance and management, and start broadcasting as soon as possible, our bureau adopted Beijing Broadcasting System