适用于按照CCIR出版物中描述的使用625或525线的单色和彩色传输电视系统运行的电视发射机和转发器。介绍插入测试信号测量在电视发射机和转发器中的应用。这种测量方法有助于在节目服务期间检查发射机或转发器的线路时间性能，并为验收测试期间测试传输性能稳定性提供了一种方便的方法。也可用作进行IEC 60244中所述某些线路时间测量的替代方法- 5和60244-9。

Applies to television transmitters and transposers operating in accordance with television systems for monochrome and colour transmission employing 625 or 525 lines as described in CCIR publications. Deals with the application of insertion test signal measurement to television transmitters and transposers. This method of measurement is useful for checking the line time performance of the transmitters or transposers during programme service and provides a convenient method of testing transmission performance stability during acceptance tests. May also be used as an alternative means of carrying out some of the line time measurements described in IEC 60244-5 and 60244-9.