[mythtv-users] HD PVR and IR transmitter for channel change (why)
mythtv at derdev.com
Wed Dec 15 16:05:28 UTC 2010
On Wed, 15 Dec 2010 08:59:31 -0700, Brian Wood <beww at beww.org> wrote:
> On Wednesday, December 15, 2010 08:29:34 am Dave Richardson wrote:
>> Sorry if this is remedial, the wiki does not appear to address the
>> If the setup for an HD PVR from cable STB is
>> STB --> [composite] --> HD PVR --> [USB] --> Myth BE
>> Then the wiki appears to jump straight to a conclusion that the IR
>> Transmitter channel change wiring and setup is
>> HD PVR --> [ir emitter] --> STB
>> with a lot of instruction about how to ensure modules/kernel and
>> myth setup are done.
>> My QUESTION: there seems to be a leap or assumption made that this
>> is the best/correct IR transmitter setup to channel change on the
>> Can someone please elaborate on this? Are there other options or
>> least reasons why this approach is favored? My gap in
>> is that this is not similar to how IR transmitting is done when
>> capturing from STB -> PVR 550/150 or other setups. Why is the HD
>> PVR IR Transmitter favored over IR transmitting from the BE?
> I don't know, but some possibilities are:
> The placement of the HD-PVR may be different from the location of the
> up to the 15 foot limit for a USB cable anyway.
> In my case the HD-PVR is on the other side of a wall from the BE
> machine, which is in the garage.
> Obviously you can run a wire from the BE to an IR emitter, and you
> probably run it farther than the limit for USB, but using the
> emitter eliminates one cable.
> The HD-PVR emitter may have more IR power than a serial-port driven
> emitter, since it has it's own power source.
> mythtv-users mailing list
> mythtv-users at mythtv.org
So the wiki's content pertaining to support for the HDPVR IR emitter is
to offer more emitter options rather than to prescribe or limit options?
That's very helpful, thanks to all!!!
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