[mythtv-users] MythTV and Comcast On Demand

[jesse k]

I can tune stations just fine.  This seems to be a function of the
set-top box whereas On Demand must query something external.  The amp
is necessary to clear up the picture after the split.
On 10/12/05, Chris Ribe <chrisribe at gmail.com> wrote:
> Regarding Carl's suggestion, can you tune in digital stations while the amp
> and splitter are in place?  If so, it probably isn't a signal strength
> issue.
>
>
> On 10/12/05, Chris Ribe <chrisribe at gmail.com> wrote:
> > FWIW, Comcast uses splitters that are only rated to 900Mhz or 1.2GHz when
> they do installations.
> >
> > I've encountered similar problems doing installs for people, but
> unfortunately I don't know what the solution is (one time it turned out that
> the problem was a temporary and neighborhood wide, but it just happened to
> commence while I was punching down the distribution block in someones
> basement).   I've heard that Comcast will provide an amplifier if one is
> necesary.
> >
> >
> > On 10/12/05, jesse k < kirchner at alum.mit.edu> wrote:
> >
> > > I have a MythTV/Gentoo box which is working very nicely. I've managed
> > > to enable all the functionality I want other than getting premium
> > > channels to work (the various HBOs). This is fine with me as On Demand
> > > obviates the need to record those shows. However, the hardware I've
> > > used to split and amplify my cable signal seems to interfere with the
> > > On Demand service.
> > >
> > > The setup (
> http://jessekirchner.com/file/cable_setup.txt) I have is as
> > > follows. I use a Radio Shack 16-2568 2-way splitter (40-2150MHz) to
> > > divide the incoming co-ax cable signal. One line goes to the
> > > WinTV-PVR350 card in my MythTV box from which I deliver the signal
> > > over S-Video to my television. Due to signal degradation from the
> > > splitter, I use a Radio Shack 15-1170 inline powered amplifier
> > > (50-2200MHz) to boost the strength before the Motorola DCT2000 series
> > > set-top box. The signal is carried by co-ax from the set-top box to
> > > the television.
> > >
> > > I cannot use On Demand with the above-described setup. When I want to
> > > catch up on Rome or Six Feet Under (RIP), I need to unhook the input
> > > line from the splitter and feed it directly into the set-top box
> > > during which time, my MythTV box cannot record with a live signal
> > > (however, it will dutifully record hours of static). I've tried to no
> > > avail removing the amplifier to see if that is blocking the On Demand
> > > signal. This leads me to suspect that the frequency pass on the
> > > splitter (40-2150MHz) is too narrow. (And yes, I realize that the
> > > amplifier frequency pass is almost identical, but I dont have the
> > > hardware to check that individually and I want to take this one thing
> > > at a time.)
> > >
> > > I'd like to find a splitter that will allow the necessary frequencies
> > > through, but I have no idea where to start. Before I bug Comcast (I
> > > don't have much faith in their ability to help with non-standard
> > > questions), I want to see if anyone in this forum has encountered a
> > > similar difficulty or might know a good place to post this query.
> > > Also, if I seem to have a lapse in understanding, please feel free to
> > > school me.
> > > --
> > > Jesse Kirchner
> > > kirchner at alum.mit.edu
> > > http://jessekirchner.com/
> > > _______________________________________________
> > > mythtv-users mailing list
> > > mythtv-users at mythtv.org
> > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> > >
> >
> >
>
>
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--
Jesse Kirchner
kirchner at alum.mit.edu
http://jessekirchner.com/