全固态中波发射机驻波比故障原理及调机应用  

VSWR Fault Principle and Modulation Application of All Solid-State Medium Wave Transmitter

作　　者：蔡德光 CAI Deguang(Guangdong radio and television technology center 808 station,Guangzhou 510000,China)

机构地区：[1]广东省广播电视技术中心八〇八台,广东广州510000

出　　处：《电声技术》2022年第6期85-87,共3页Audio Engineering

摘　　要：当机器发生驻波比(Voltage Standing Wave Ratio,VSWR)故障、零位变大,将会引起发射机降功率甚至关功放故障。对此,本文着重介绍DAM10k W中波发射机的天线和带通滤波器驻波比故障的取样、监测原理,概述该部分实际调机过程中的经验及处理方法,旨在加强运维人员对零位和驻波比故障的认识,以做好安全播出,提高运行维护质量,保证播出的效果。When the Voltage Standing Wave Ratio(VSWR) fault occurs in the machine and the zero becomes larger, it will cause the transmitter to reduce the power or even turn off the power amplifier fault. This paper mainly introduces the sampling and monitoring principle of the VSWR fault of the antenna and bandpass filter of DAM10kW medium wave transmitter, and briefly explains the experience and treatment method in the actual tuning process of this part. The purpose is to strengthen the understanding of zero and standing wave ratio faults,do a good job in safe broadcasting, improve the quality of operation and maintenance, and ensure the effect of broadcasting.

关 键 词：驻波比(VSWR) 取样原理 调机 

分 类 号：TN838[电子电信—信息与通信工程]