[linux-dvb] Re: ATSC?

[Thomas Sailer <sailer@scs.ch>]

Matt Zimmerman wrote:

> incompatible.  The adoption of ATSC in North America seems to be a curse,
> because those of us who live here will not be able to take advantage of the
> DVB hardware which seems to be widely available in Europe.

The main difference AFAIK between ATSC and DVB are:

- ATSC uses the rather broken VSB modulation for terrestrial transmission
  versus DVB COFDM. This should only be visible to the demodulator chipset,
  both deliver Transport Stream packets to the upper layers.
  In fact, NIM modules are announced that can demodulate both
  standards. The only difference should be the tuning and mode information 
  you write into the NIM module.

- ATSC requires A/52 aka AC.3 sound, DVB requires MPEG Layer II
  and has AC.3 optional.

- ATSC has different PSI (Program Specific Info) tables.

Tom


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