[mythtv-users] Raspberry PI as backend slave or tvheadend

Doug Scoular (dscoular) dscoular at cisco.com
Fri Jun 7 12:53:23 UTC 2013


Hi All,


Agreed. The thing about boosters is, if your signal is weak at the
antenna, all the boosting in the world won't help you. But, if there
IS enough signal at the first booster, then you can boost it and split
it for a whole bunch of tuners and get a decent signal at all of them
(assuming a quality booster that doesn't overmodulate or add a bunch
of noise).

Boosters overcome signal loss inherent in long cable runs and
splitters. You can never get a better signal coming out than went in
to it, but if you have acceptable signal now, there should be zero
issues with a quality 4-way splitter/booster replacing your current
solution.

> All true - assuming that your new antenna is directional with high gain
> and pointed at the required transmitter, and that its head amp is
> powered and working.  And in that case I would say there's a good chance
> that all you need now is a passive splitter - and another use for the
> RPi :-)

Okay, the signal is weak coming out of the active masthead amplifier, but I hadn't thought to check how it performed if I used the masthead's internal splitter at that point. I'd forgotten it had an internal splitter. FYI, I'm in the shadow of a hill on one side and have a island between me and the other, distant, transmitter.

Let's ignore the antenna issue and just assume the signal is peachy… either from splitting at the masthead or using a separate antenna with it's own short run to the garage.

What I'm more interested in is whether:

1. Would a Raspberry Pi be a reasonable platform to consider for a mythtv slave backend ?, or if not:
2. Are there any plans to allow a mythtv backend to use tvheadend as a remote tuner ?

If there's no one out there with experience of 1) I guess I'll try it and see. It would seem that for 2) a mythbackend tuner module that could talk to a remote tvheadend would be a good thing… but maybe I'm misunderstanding the exact functionality tvheadend provides… I reckon I need to do a bit more research.

Anyway, many thanks to all those on the list who responded… good stuff!

Cheers,

Doug
"the big print giveth and the small print taketh away"

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