摘要
电缆联锁是DAM 50 kW中波发射机的一种自我保护措施。对于前置放大器及射频推动级,其通过驱动编码板上的检测电路进行联锁保护,而调制编码器上的检测电路则对发射机内所有的射频功率放大模块进行联锁保护。对此,本文对联锁电路各部分进行简要分析,并以具体的电缆联锁故障为例,给出详细的处理流程,为发射台维护人员提供一定的借鉴。
Cable interlocking is a self-protection measure for dam 50 kW medium wave transmitter. For the preamplifier and RF driving stage, the detection circuit on the drive coding board is used for interlocking protection, while the detection circuit on the modulation encoder is used for interlocking protection of all RF power amplification modules in the transmitter. Therefore, this paper briefly analyzes each part of the interlocking circuit, and gives a detailed processing flow with a specific cable interlocking fault as an example, which provides a certain reference for the maintenance personnel of the launch station.
作者
梁志明
LIANG Zhiming(Radio and Television Technical Center of Guangdong province,Guangzhou 510800,China)
出处
《电声技术》
2022年第7期124-126,共3页
Audio Engineering
关键词
中波发射机
电缆联锁
故障检测
medium wave transmitter
cable interlocking
fault detection
