Multiplexed Analogue Components
1980s analog television standard / From Wikipedia, the free encyclopedia
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Multiplexed Analogue Components (MAC) was an analog television standard where luminance and chrominance components were transmitted separately.[1][2] This was an evolution from older color TV systems (such as PAL or SECAM) where there was interference between chrominance and luminance.
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MAC was originally proposed in the 1980s[2] for use on a Europe-wide terrestrial HDTV system. Terrestrial transmission tests were conducted in France, although the system was never used for that purpose. Various variants were developed, collectively known as the "MAC/packet" family.[3]
In 1985 MAC was recommended for satellite and cable broadcasts by the European Broadcasting Union (EBU), with specific variants for each medium. C-MAC/packet was intended for Direct Broadcast Satellite (DBS), D-MAC/packet for wide-band cable, and D2-MAC/packet for both for DBS and narrow-band cable.[3][4][5]