随着国家“文化资源信息共享”工程建设的实施和广大人民群众对精神文化生活需求的日益增长,有线电视以节目内容丰富、图像清晰等特点,已经走进了千家万户,像水、电、气,一样成为人们生活当中不可缺少的一部分。但有线电视是以线缆来传输电视信号的,线路中的信号放大器多,分支分配器多,接 With the implementation of the national “Cultural Information Information Sharing ” project construction and the increasing demand for spiritual and cultural life by the broad masses of the people, cable television has become a home to millions of households with characteristics such as rich program content and clear images, , Electricity, gas, as an indispensable part of people’s lives. However, cable TV cable is used to transmit television signals, the signal amplifier in the line and more branch distributor, then