发射机调谐系统原理与故障分析  

Principle and Fault Analysis of Transmitter Tuning System

作　　者：饶瞬 RAO Shun(Radio 731,National Radio and Television Administration,Longyan 364012,China)

机构地区：[1]国家广播电视总局七三一台,福建龙岩364012

出　　处：《电声技术》2021年第4期70-73,77,共5页Audio Engineering

摘　　要：在短波发射机中,调谐是发射机良好运行的保障,也是系统工作自动化的基础。为了精准地调谐各元器件,使机器稳定播出,技术人员需要深刻了解调谐套箱的信号走向及元器件特点。基于各元器件的特点,与故障处理相结合,详细介绍调谐系统。In short wave transmitter,tuning is not only the guarantee of transmitter running well,but also the basis of automation.In order to tune the components accurately and make the machine broadcast stably,technician need to deeply understand the signal trend and component characteristics of the tuning box.Based on the characteristics of each component,this paper introduces the tuning system in detail,combining with fault treatment.

关 键 词：调谐套箱 电机驱动 步进电机 光电码盘 

分 类 号：TN838[电子电信—信息与通信工程]