Measuring Amplifier Differential Gain and Phase Accurately

Video system require 0.1% gain and 0.1° phase differences Valid measurements need proper instrumentaion and techniques

In standard television systems, color (chrominance) information is conveyed by a phase- and amplitude-modulated subcarrier. The NTSC (National Television Standards Committee) system used in the US and Japan employs a 3.58- (actually 3.579545-) MHz color subcarrier, while the United Kingdom's PAL system and France's SECAM system use a 4.40-MHz subcarrier. Read full article



Scott Wurcer


Jeff Smith