DX200中波发射机驻波比故障分析与处理  

Fault analysis and treatment of standing wave ratio of Dx200 medium wave transmitter

作　　者：陈钦 Chen Qin(State Administration of radio and television,Nanping Fujian,354000)

机构地区：[1]国家广播电视总局七五一台

出　　处：《电子测试》2020年第5期104-106,78,共4页Electronic Test

摘　　要：DX200发射机效率高、性能好、自我保护功能强大,因此在运行中经常会出现驻波比故障进行自我保护,本文通过对DX200中波发射机驻波比故障的工作原理详细的阐述,对发射机产生驻波比故障的原因和相关驻波比电路的响应情况以及发射机的动作情况认真的分析,提供了对发射机出现VSWR故障时对故障点的判断以及对机器运行中出现驻波比故障后的处理方法,并对发射机驻波比电路的维护方法和注意事项进行了阐述。DX200 transmitter has high efficiency, good performance and powerful self-protection function, so VSWR failure often occurs in operation for self-protection. In this paper, the working principle of VSWR failure of DX200 medium wave transmitter is described in detail, and the causes of VSWR failure of transmitter, the response of related VSWR circuit and the action of transmitter are carefully divided This paper provides the judgment of the fault point when VSWR fault occurs in the transmitter and the treatment method after VSWR fault occurs in the operation of the machine, and expounds the maintenance method and precautions of the VSWR circuit of the transmitter.

关 键 词：DX200中波发射机 VSWR故障 故障分析 驻波比的设置 

分 类 号：TN838[电子电信—信息与通信工程]