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ATSC Digital Television
ATSC stands for the Advanced Television Systems Committee, which developed the standards for digital television broadcasting (DTV) used in the United States (as well as in Canada, Mexico, Korea, Honduras and El Salvador, at this writing).
DTV transmissions are very different from analog TV, both in the type of video and audio signals and in the way they are modulated onto the RF carrier. ATSC DTV signals are not compatible with NTSC and need a different type of receiver—either an integrated television or a set-top box. It is possible to use a DTV set-top box to feed an existing NTSC television set, but to take advantage of the improved video quality with high definition and widescreen ...
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