有线电视系统的设计与思考

Design and reflection on wired TV system

随着光缆在有线电视系统的应用日益增多,改造原有电视系统并改用光缆传输系统势在必行。对有线电视系统在设计和改造时应该注意的几个问题进行论述,即系统形式的选择;前端要求;光缆损耗计算;电缆分配系统的要求;提高CATV系统可靠性设想。

As more and more optical cables are used in wired TV systems,it is imperative to change the original TV system into optical cable transmission syetem.This article discuss five questions which are for CATV system design and reform.they are:the choice of the form of system.The requirment of the front part.The calculation of cable loss.The requirment of cables distributing system.The idea of raising the reliability of CATVsystem.