Working Group Details
G-2.1.4 - Video Distribution Working Group
|Working Group Chair||
BTS/AVTech - Audio and Visual Techniques
A method of measuring the amplitude levels of an SMPTE 170M-1994; NTSC color or monochrome television video signal is described. It is concerned with luminance measurements at various points in transmission systems where the signals are at video frequencies. The methods described are limited to the use of waveform monitors, software video processing for amplitude assessment, or suitable oscilloscopes, and are primarily directed to specifying means of measuring television signal levels for operating purposes.
Reaffirmed March 2010. A set of metrics and methods to enable consistent measurement of the components of timing interval error in video synchronization signals is provided. By partitioning the spectra into regions of jitter and lower frequency wander (characterized as frequency offset and drift rate), timing performance can be better quantified for consistent control over nontraditional networks.