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近年来,由于电视机的逐渐普及,安装共用天线电视系统(简称 CATV 系统)的单位越来越多,规模越来越大。目前,万户左右的系统已经出现,从发展趋势看,首先在一些大型工矿企业宿舍区和城市新建住宅区,上万户甚至更大规模的 CATV 系统必将不断涌现,这种大规模系统的设计、安装、调试已提到议事日程上来了。本文主要叙述万户级 CATV 系统的一些特殊问题及其设计方法,对安装、调试也作简要的介绍。
In recent years, due to the increasing popularity of televisions, more and more units have installed common antenna television systems (CATV systems), and they have become larger and larger. At present, about ten thousand households have emerged. From the development trend, first of all, in some large industrial and mining enterprises’ dormitory areas and new residential areas in cities, tens of thousands or even more large-scale CATV systems will continue to emerge. This kind of large-scale system Design, installation and commissioning have already been mentioned on the agenda. This article mainly describes some special problems and design methods for the 10,000-class CATV system. It also briefly introduces installation and debugging.