摘要
在对数字调幅发射机指标测试中,发现的谐波失真偏大(大于10%),成功进行了达标调整。本文介绍了调整过程,并说明了数字调幅发射机失真偏大的危害,分析了失真产生的环节与原因,给出了一种调整失真达标的方法和维护技巧。
The distortion of higher than 10% was found during the test on harmonic index of digital AM transmitter, we have solved it successfully. This article describes the process of resolving, and describes the hazard of higher distortion of the digital AM transmitter. It analyzes where and why the distortion happened and gives a method on adjusting and maintenance skills.
出处
《广播与电视技术》
2015年第7期119-122,共4页
Radio & TV Broadcast Engineering
关键词
数字调幅发射机
指标测试
谐波失真
调整
Digital AM transmitter, Index test, Harmonic distortion, Adjustment
