[mythtv-users] OT: ATSC/QAM Encode to distribute HD over longer runs.

[Dan Ritter]

On Fri, May 09, 2008 at 07:16:51PM -0400, Chris Ribe wrote:
> 
> This is true, but it would be much more difficult to provide multiple
> streams from a single backend if you were feeding ATSC streams.  Without the
> ability to have independent frontends, such a system would be of limited
> appeal.  Also, consider that very few TVs have multiple ATSC tuners, so you
> would need to work around the problem of still allowing those TVs to watch
> off ait TV.

It's just a transport for video and audio; the frontend still
needs to exist somewhere.

But as to your second point -- an ATSC channel is the same 6 MHz
as an NTSC channel; once you've produced it, probably at a
standard 'channel 3' setting, can't you use a $50 modulator
(http://www.smarthome.com/7764.html is the first to hand) to
assign it to a dead channel that you create with a notch filter? Add
another frontend, add another modulator. You should be able to
handle four or five channels that way.

-dsr-

-- 
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When freedom gets lots of exercise, it protects itself.