ATSC

ATSC (advanced television systems Committee) is a group of 1982, developed the ATSC standards for digital television in the United States and many other countries as the South Korea, Canada, Mexico and the Honduras. Abbreviations are also known for the same ATSC standards reference.

Standards ATSC Digital television to long run is the current NTSC television system, will replace 17 as is the case in the United States February 2009 and 2011 at the Canada until August 31. These new standards high definition produce a resolution better than his predecessor about six times, he manifests a non-profit images of screen wide 16: 9 1920 x 1080 pixels size. Not to forget, another different image sizes are still supported as well as can still be broadcast up to six channels of standard definition.

Sound wise, ATSC can quality audio "Theater" to be the sound format Dolby Digital AC-3 surround produces the 5.1 channels.

If with the ATSC and the distribution of the analog signal, are two separate channels are needed, as ATSC requires a channel set for themselves. As virtual channels can be assigned to a different number from 1 to 99, ATSC stations are often associated with an NTSC channel or all stations use the same number.

Also, how many other systems, the ATSC is an interwoven standard and is also heavily patented, because it contains elements of MPEG, AC - 3 and the 8VSB Modulation audio encoding.

Comparison with other standards

Today the system ATSC, despite above is too complicated for normal and true as budget, critical system is relatively easy and good market to the most commonly used system of the current world, the DVB.

In addition, the conditions for propagation to the DVB - T and ISDB-t is the ATSC signal, ironically, effective adoption of changes in the radio. The location of the change ATSC of the parties that its correction, code rate, the mode Randomizer and interleaver modes were still more robust, it could become. Regardless of these fixed parameters, it is always stable under different conditions.

Areas with ATSC

North and South America

Argentina

Bahamas

Bermuda

Canada

Colombia

Chile

Guatemala

Honduras

Mexico

Peru

United States

Asia-Pacific.

American Samoa

Guam

The Northern Marianas