摘要
功率放大器是发射机的关键组成部件,其运行状态影响着发射机的运行状况,其输出功率决定了发射机的输出功率大小以及覆盖网络的场强大小及范围。功率放大器是发射机较为常见的故障点,功率放大器的检修也是发射台检修工作的难点。针对KFT-II-914A型10 kW调频广播发射机功率放大器无输出功率故障进行详细分析,探讨功率放大器的相关检修内容,为发射台维护人员提供一定参考。
The power amplifier is the key component of the transmitter.Its operation status affects the operation status of the transmitter.Its output power determines the output power of the transmitter and the field strength and range of the overlay network.The power amplifier is a common fault point of the transmitter,and the maintenance of the power amplifier is also a difficulty in the maintenance of the launch pad.This paper analyzes in detail the failure of no output power of the power amplifier of KFT-II-914A 10 kW FM broadcasting transmitter,discusses the relevant maintenance contents of the power amplifier,and provides some reference for the maintenance personnel of the launch pad.
作者
王仕华
WANG Shihua(Station of Guizhou provincial Radio and Television Bureau,Qiandongnan 556000,China)
出处
《电视技术》
2023年第8期104-107,共4页
Video Engineering
关键词
全固态
广播发射机
功率放大器
all-solid state
broadcast transmitter
power amplifier
