[mythtv-users] MythTV and Comcast On Demand

[Chris Ribe]

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/
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>
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