[mythtv] [mythtv-commits] Ticket #926: Radio channels for DVB-T

Michael Freeman mlfreeman at gmail.com
Tue Feb 14 12:30:22 UTC 2006

 my zap2it feed would pull in at least generic listing information for the
music channels for my digital cable company so in theory i could try to map
them out too and live with that if nothing else.

as far as program data  / listings go, the cable companies (at least the
ones around here) all send their data in an out of band channel.
from what i can tell, i'd need to get a QPSK demodulator unit capable of
picking up a 3 MHz wide signal centered around 75.25 MHz  (2.048 mbit / sec
data feed) to even get at the data before testing a decoder addin for
myth...i believe though that all the specs i need would be @ www.scte.org
if someone can tell me where i can get a qpsk demod for under US$700, i'd be
shocked but i just might buy one...if i had found such a device already, i
might have given this a shot.
all the gear i found so far seems to be expensive lab gear, expensive
headend equipment or cheap stuff on ebay in need of an expensive interface
card (such as a rs-449 serial card).

On 2/14/06, Daniel Kristjansson <danielk at cuymedia.net> wrote:
> On Mon, 2006-02-13 at 22:12 -0500, Michael Freeman wrote:
> > any chance of ever getting QAM64/256 (US digital cable) radio support?
> > no idea how to write that except that you could probably start by
> > simply making a video stream not required.
> The video stream can be handled just like in the DVB-Radio case,
> so that is not really a problem.
> The problem is with listings. We would need to collect listings in
> the Scientific Atlanta and Motorola proprietary listing formats.
> No one has even attempted this to date, but I believe the formats
> are documented if you want to give it a try.
> -- Daniel
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