IEVref:723-08-11ID:
Language:enStatus: Standard
Term: SECAM (colour television) system
Synonym1: SECAM (abbreviation)
[Preferred]
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Definition: simultaneous line sequential colour television system using, in baseband, a composite colour signal comprising a luminance signal and two chrominance components each of which is transmitted sequentially, as frequency modulation of a separate subcarrier. The receiver is provided with a line period delay line to permit the simultaneous display of the three colour components

NOTE 1 – In most applications of SECAM, the scanning system uses 625 lines and 50 fields/second. The colour signal is transmitted using vestigial sideband amplitude modulation, and the sound is transmitted as amplitude or frequency modulation of a separate radio-frequency carrier.

NOTE 2 – SECAМ is derived from "Sequential Couleur à Мémоire".

NOTE 3 – There are different versions of SECAM defined in CCIR Report 624.


Publication date:1997-03
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Internal notes:2016-09-13: Adjective "radiofrequency" replaced by "radio-frequency" in term and definition. JGO
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