摘要
中波广播发射系统是广播电视播控系统的重要组成部分。随着中波广播发射系统向自动化和数字化发展,广播发射系统的结构越来越复杂,受到系统结构自身以及外部环境的影响,广播发射系统容易出现正负调幅不对称、噪声电平、谐波失真及载波频率容差等问题,影响系统的正常运行。基于此,分析中波广播发射系统的构成以及系统日常维护管理技术。
Medium wave broadcasting launch system is an important part of radio and television broadcast control system.With the development of medium wave radio transmitting system to automation and digitization,broadcast emission system structure is more and more complex,affected by the system itself and the external environment,radio transmitting system prone to asymmetric plus or minus banners,noise level,harmonic distortion,and the appearance of the carrier frequency,and other problems,it affects the normal operation of the broadcast transmission system.This paper analyzes the composition of the medium wave broadcast transmission system and the daily maintenance and management technology of the broadcast transmission system.
作者
周雄
ZHOU Xiong(Muli Station,Sichuan Radio and Television Bureau,Muli 615800,China)
出处
《电声技术》
2021年第4期1-3,共3页
Audio Engineering
关键词
中波广播发射系统结构
数字化
日常维护技术
medium wave broadcast transmission system structure
digitization
routine maintenance technique
