Ntsc Tuner
what is the difference between a NTSC and a QAM tuner for an hdtv?
NTSC refers to the committee that created the standard called the National Television System Committee. The National Television System Committee was established in 1940 by the Federal Communication Commission (FCC) to resolve conflicts which arose between companies over the introduction of a nationwide analog television system in the United States. In March 1941, the NTSC approved the technical standard for black and white televisions.
QAM stands for “quadrature amplitude modulation” which is the format cable channels are encoded and transmitted via cable. Using a QAM tuner you would be able to receive unencrypted digital signals via your cable provider without needing a digital cable box. QAM tuners are the cable equivalent of the Atsc Tuner. Unlike the FCC requirement that ATSC tuners are required in new television sets, QAM tuners are not required.
Integrated QAM tuners allow for reception of unscrambled digital programming sent unencrypted by cable providers, usually local broadcast stations. Since most cable providers consider digital channels as not part of their basic cable packages, most digital channels are scrambled. Which channels are scrambled varies greatly from location to location, and can change over time. In this case you need a digital cable box or CableCARD to unencrypt the signal.
US $84.99
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