用双绞线长距离(1km)传输视频信号的驱动器和接收器的研制

The Driver and Receiver in Transmitting Video Signal Using Twisted pair Line over Long Distance

在监控系统中常用双绞线来传图像信号，但是往往信号跌落很多．本文讨论了长距离在双绞线上传输视频信号用的驱动和接收，利用运算放大器ＥＬ１５０１ 和ＥＬ２２８０ 制作的长线驱动器和用ＥＬ２１４２ 和ＡＤ８１８ 视频运算放大器制作的接收器达到了很好的效果，图像清晰稳定。

The twisted pair line is often used to transmit the video picture signal in monitoring system, but the signals in the terminal of a receiver are often dropped. This paper discusses the driving and receiving of transmitting the video signal over long distance. The long line driver and receiver are made of the amplifiers El2280 & El1501 and good results are obtained. The video picture is fine and steady, the result of transmitting the video test signal is also wonderful.