广播电视发射机天馈冗余射频电缆对信号的损耗及解决办法  

Loss of Signal Brought by Antenna Feed Redundant Radio Frequency Cable in Radio and TV Transmitter and Its Solution

作　　者：李彤 LI Tong(Tianjin Zhonghuan Anxunda Technology Co., Ltd, Tianjin 300457,China)

机构地区：[1]天津中环安讯达科技有限公司,天津300457

出　　处：《中国有线电视》2020年第8期910-911,共2页China Digital Cable TV

摘　　要：发射机天馈线系统中的电缆冗余一直都是限制信号传输质量提升的重要问题,不仅增加电力损耗,还会限制信号传播距离和质量,是广播电视发展过程中亟需重视的问题。首先简要分析了天馈线系统的基本组件及运行原理,随后结合某电缆冗余处理案例,对该问题的解决办法进行具体讨论。The cable redundancy in the transmitter antenna feed system has always been an important problem which limits the improvement of signal transmission quality.It not only increases the power loss,but also limits the signal transmission distance and quality,which is an urgent problem in the development of radio and television.The article firstly analyzes the basic module and operating principle,and discusses the solution combining with the specific cases.

关 键 词：广播电视 发射机天馈线系统 冗余射频电缆 信号损耗 解决办法 

分 类 号：TN948.53[电子电信—信号与信息处理]