如何保证CATV系统的三大指标

How to Fulfill the Three Norms of CATV System

以华东交通大学ＣＡＴＶ系统为实例，讨论了保证ＣＡＴＶ系统三大指标的设计方法以及干线、分配系统放大器的类型及工作环境的选择．这三大指标就是系统的输出口电平。

This paper presents the design method of East China Jiaotong Untversitys CATV system. It also diseusses how to choose main line, distributing systems amplifiers and working environment to satisfy three morms:system's output vltage, SNR of carrier waves and nonlinear distortion.