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CTA-2020 (ANSI)

Standards Details

Other VBI Waveforms
Document Number:
CTA-2020 (ANSI)
CTA-2020 specifies four Vertical Blanking Interval (VBI) waveforms in commercial use. The electrical properties of the waveforms are covered, but the meaning of the payload data is not. The waveforms apply to 525-line, interlaced (i.e. 480i) analog television signals. The waveforms may be present on analog inputs and analog outputs, but no conformance requirements about the actual presence of the waveforms are defined in CTA-2020.
Committe Name:
R4.3 Television Data Systems Subcommittee
Publication Date:
December 01, 2007
$72.00 (Standard) $54.00 (Member)
CTA members receive 25 percent off regularly priced documents by calling TechStreet at 1-800-699-9277 or 1-734-780-8000. Visit to buy the document. CTA members receive 25 percent-off regularly priced documents by using code CTA2016.
Waveform, Vertical Blanking Interval, VBI, analog television, NTSC, Line 21, 525-line, interlaced, 480i, audience measurement of lineup, AMOL, TVG1x, TVG2x, video, CTA


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