论文部分内容阅读
本文介绍图文电视通道的基本技术参数及测试方法，并介绍了由广电部广科院研制成功的图文电视测试卡的功能。
This article introduces the basic technical parameters and test methods of the teletext channel and introduces the function of the teletext test card developed by the Chinese Academy of Broadcasting, Radio and Television.