[mythtv-users] QAM and ATSC HDTV on the Same Card
David Ellis
david at ellisonline.ca
Sun Nov 27 15:37:50 EST 2005
Hey Steve, thanks for the note on the combiner (I needed the right magical
name to find it at radioshack).
As for why I would do it? In Canada (unlike the US), the CRTC (the CDN FCC)
does not mandate that OTA channels be broadcast in the clear. As a result
the HD channels I want are not clear transmitted (they are 100% encrypted).
However about 40 channels are clear transmitted on QAM (SD but good channels
with good reception). I wanted a way to have one HD3000 receive both. This
may work (I'll try it out), but I may need a "filter" to block some of the
Cable stations that overlap with the HD channels. Lets see what I can find
on Ebay.
David
-----Original Message-----
From: Steve Adeff [mailto:adeffs at gmail.com]
Sent: Sunday, November 27, 2005 2:04 PM
To: mythtv-users at mythtv.org
Cc: David Ellis
Subject: Re: [mythtv-users] QAM and ATSC HDTV on the Same Card
On Sunday 27 November 2005 13:38, David Ellis wrote:
> I have a HDTV Antenna (oriented correctly - works for 7+ channels), and a
> Digital QAM Provider (100% working, channels decoded).
>
>
>
> What I'm looking to-do is potentially combine both signals so the same
> HD3000 card can tune both ATSC and QAM_256 digital cable. Are their any
> sort of injectors or the like people have used, or is it an either or
> scenario?
>
>
>
> David
First, why? you should be receiving all the OTA channels on your QAM line,
from either a better positioned antenna or directly from the network
digitally (depending on your cable company).
Out side of that, you can get a splitter/combiner from home
depot/lowes/radioshack, run the two lines in and the output to the card.
you'll have to customize the channels information in Myth to understand
which
channels are on QAM and which are on ATSC as well as the multiplex
frequencies.
Haven't tried it but it should work.
--
Steve
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