中波发射机射频模块故障维修浅析

Analysis on Fault Maintenance of Radio Frequency Module of Medium Wave Transmitter

宜春811台拥有4套中波广播节目。在这几年的实际运行中,发射机遇到了许多不同方面的故障,其中发生频率最高的故障是激励部分的故障。对此,以10 kW数字幅度调制(Digital Amplitude Modulation,DAM)中波发射机为例,对DAM中波发射机激励部分的工作原理以及故障维修进行论述。

Yichun 8ll station has 4 sets of radio programs.In the actual operation of these years,the transmitter has encountered many different aspects of failure,among which the most frequent failure is the excitation part of the fault.In this paper,taking 10 kw Digital Amplitude Modulation(DAM)medium wave transmitter as an example,the working principle and fault maintenance of DAM medium wave transmitter are discussed.