本标准定义了与1125线高清电视制作系统中运行的始发设备相关的模拟视频信号的基本特征。本标准定义了在60.00 Hz和59.94 Hz磁场频率下运行的系统。本标准中所述信号的数字表示可在SMPTE 260M中找到。这两个文档定义了1125线HDTV生产系统的数字和模拟实现。

This standard defines the basic characteristics of the analog video signals associated with origination equipment operating in 1125-line high-definition television production systems. This standard defines systems operating at 60.00 Hz and 59.94 Hz field rates.The digital representation of the signals described in this standard may be found in SMPTE 260M. These two documents define between them both digital and analog implementations of 1125-line HDTV production systems.