北广ZF-10A中波发射机射频部分的工作原理与故障检修要点  

Working Principle and Troubleshooting Essentials of Radio Frequency Part of Beiguang ZF-10A Medium Wave Transmitter

作　　者：周锦 ZHOU Jin(Radio and Television Bureau Qujing 691 of Yunnan Province,Qujing 655000,China)

机构地区：[1]云南省广播电视局曲靖691台,云南曲靖655000

出　　处：《电声技术》2024年第5期127-130,共4页Audio Engineering

摘　　要：北广ZF-10A中波发射机是典型的数字振幅调制(Digital Amplitude Modulation,DAM)中波发射机,采用了全固态装配技术和成熟的数字化控制电路,具有工作性能稳定、工作效率高及保护功能完善等优点。国内大中功率中波发射台基本都在使用此类型的发射机,虽然厂家不同、功率等级不同,但整机电路组成基本相同。基于此,分析此机型射频部分的工作原理和故障检修要点。Beguang ZF-10A medium wave transmitter is a typical Digital Amplitude Modulation(DAM)medium wave transmitter,which adopts all solid state assembly technology and mature digital control circuits.It has the advantages of stable working performance,high working efficiency,and complete protection functions.Most large and medium power medium wave transmission stations in China use this type of transmitter.Although the manufacturers and power levels are different,the overall circuit composition is basically the same.Based on this,analyze the working principle and troubleshooting essentials of the RF part of this model.

关 键 词：中波发射机 射频部分 工作原理 检修要点 

分 类 号：TN948.64[电子电信—信号与信息处理]