Tektronix AWG2021 User Manual page 524

Appendix D: Sample Waveform Library
Figure D 18: Color Bar (Composite) Signal ($CB1-2H.SEQ)
Figure D-19 shows the NTSC Y-C separate signal. Y (luminance signal) and C
(chroma signal) have been created separately, so if these are output separately to
channel 1 and channel 2 they will become Y-C separate signals; when these are
combined and output, they become a composite signal. A 50 W/75 W conversion
adaptor is required for 75 W output.
D 21
AWG2021 User Manual