12 Facts About ATSC standard


The ATSC standard is administered by the Advanced Television Systems Committee.

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ATSC standard includes two primary high definition video formats, 1080i and 720p.

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Many aspects of ATSC standard are patented, including elements of the MPEG video coding, the AC-3 audio coding, and the 8VSB modulation.

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Broadcasters who used ATSC standard and wanted to retain an analog signal were temporarily forced to broadcast on two separate channels, as the ATSC standard system requires the use of an entire separate channel.

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Channel numbers in ATSC standard do not correspond to RF frequency ranges, as they did with analog television.

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Transport, ATSC standard uses the MPEG systems specification, known as an MPEG transport stream, to encapsulate data, subject to certain constraints.

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ATSC standard uses 188-byte MPEG transport stream packets to carry data.

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The ATSC standard requires 720-line video be progressive scan, since that provides better picture quality than interlaced scan at a given frame rate, and there was no legacy use of interlaced scan for that format.

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ATSC standard signal is more susceptible to changes in radio propagation conditions than DVB-T and ISDB-T.

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In spite of ATSC standard's fixed transmission mode, it is still a robust signal under various conditions.

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Mobile reception of digital stations using ATSC standard has, until 2008, been difficult to impossible, especially when moving at vehicular speeds.

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The ATSC standard was to have allowed interactive and hybrid television technologies by connecting the TV with the Internet services and allowing interactive elements into the broadcast stream.

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