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

John Pilkington J.Pilk at tesco.net
Fri Jun 7 10:49:08 UTC 2013


On 06/06/13 17:47, Tyler T wrote:
>>>          I already have a mast head amplifier and a heavily researched
>>> brand new
>>> aerial and quad shielded co-ax. The signal is still very marginal.
>>> Splitting or adding yet another amplifier just aren't options.
>>
>> I still don't understand this.  You claim that an exotic antenna system
>> struggles to deliver but you're proposing to use a 'spare' antenna with the
>> RPi.  It may be a fun project but otherwise it doesn't really add up.
>
> 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 :-)




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