DAM 10 kW中波发射机功放故障检修与维护  

Troubleshooting and Maintenance of DAM 10 kW Medium Wave Transmitter Power Amplifier

作　　者：彭志平 PENG Zhiping(Ji’an 841 Set,Ji’an 343000,China)

机构地区：[1]吉安八四一台,江西吉安343000

出　　处：《电声技术》2023年第8期94-96,共3页Audio Engineering

摘　　要：数字幅度调制(Digital Amplitude Modulation,DAM)中波发射机在使用过程中经常会出现功放板烧坏等问题。对于此故障,不能单纯地更换功放管。如果没有找到功放损坏的根本原因并解决,可能造成更大的故障。为此,详细介绍如何对功放进行检修与维护,从而从根本上解决功放故障问题,保障广播电视的安全播出。Problems such as power amplifier board burning often occur during the use of Digital Amplitude Modulation(DAM)medium wave transmitter.For this fault,you cannot simply replace the power amplifier tube.If the root cause of the power amplifier damage is not found and solved,it may cause a greater failure.Therefore,this paper describes how to overhaul and maintain the power amplifier in detail,so as to fundamentally solve the problem of power amplifier failure and ensure the safe broadcasting of radio and television.

关 键 词：中波发射机 功放管 调配网络 

分 类 号：TN838[电子电信—信息与通信工程]