[mythtv-users] ATSC & QAM

Steven Adeff adeffs.mythtv at gmail.com
Fri Sep 15 01:30:59 UTC 2006

On 9/14/06, Jafa <hdtv at silicondust.com> wrote:
> Aaron Howard wrote:
> > Background:
> >
> > My cable provider does not carry all of my local OTA HD broadcasts due
> > to contract disputes.  Therefore, some local HD channels (as well as
> > some non-local HD like ESPNHD, TNTHD, etc.) are available via QAM-256
> > from the cable system and some are only available via ATSC OTA.
> >
> > Two questions:
> >
> > 1. Is it possible/feasible/easy to combine two sources into one (the
> > reverse of a splitter?) to get an OTA antenna and the cable signal
> > onto one RG-6 input to a tuner card?
> >
> Short answer - no. The OTA channels and Cable channels are on top of
> each other.
> > 2. Do most HD tuner cards (I have a Kworld ATSC-110 already but I'm
> > not married to it) allow switching back and forth between tuning ATSC
> > and QAM channels relatively painlessly?
> >
> Shameless plug, but check out HDHomeRun (www.silicondust.com) - it has
> two tuners and you can use one for ATSC and one for QAM.
> My home system has 4 x ATSC tuners (2 x HDHomeRun) and 2 x QAM tuners (1
> x HDHomeRun).
> Nick

so it CAN do QAM! your website isn't very clear on this. If I didn't
already have 3 HD tuner cards I'd be very interested in trying this.
I do find it hard to believe the 100bT is fast enough for the two streams...

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