中波广播发射机射频功放模块的故障检测与维修经验  

Fault Detection and Maintenance Experience of RF Power Amplifier Module of Medium Wave Transmitter

作　　者：许力 陈福东 徐秀红 唐庆滨 XU Li;CHEN Fudong;XU Xiuhong;TANG Qingbin(Zibo Radio and Television Technology Center,Zibo 255000,China;Yiyuan Integrated Media Center,Yiyuan 256100,China)

机构地区：[1]淄博广播电视台,山东淄博255000 [2]沂源县融媒体中心,山东沂源256100

出　　处：《中国有线电视》2022年第9期42-45,共4页China Digital Cable TV

摘　　要：简述中波广播发射机使用数量最多的功放模块构成、基本工作方式、故障判断方法,对功放模块中易损场效应管的几种检测方法及在存取、更换环节应注意事项进行说明。Briefly describe the composition,basic working methods,and fault judgment methods of the most widely used power amplifier modules in medium-wave broadcast transmitters,and explain several detection methods for vulnerable FETs in power amplifier modules and the matters needing attention during access and replacement.

关 键 词：射频功放模块 场效应管 导通 

分 类 号：TN832.1[电子电信—信息与通信工程]