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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> mythtv-users <mythtv-users-bounces@mythtv.org> on behalf of Paul Gardiner <lists@glidos.net><br>
<b>Sent:</b> 02 January 2017 09:34<br>
<b>To:</b> Discussion about MythTV<br>
<b>Subject:</b> Re: [mythtv-users] Thinking of moving on from MythTV :-( Any suggestions? (for the UK)</font>
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On 01/01/2017 21:16, Simon Hobson wrote:<br>
> Damian <myth@surr.co.uk> wrote:<br>
><br>
>> I meant the Live TV from within MythTV.<br>
>> I don't have a real TV to check signals with, but did have TV guys come out and check the signal a couple of years ago. The signal runs through 2 boosters now.<br>
><br>
> But, you shouldn't have 2 boosters. It's a common misconception that chaining boosters will help - in general it won't, because if you have that weak a signal, your boosters will amplify the noise and you'll end up with plenty of signal but with a crap signal/noise
ratio (snr). snr is probably more important than signal strength !<br>
<br>
Just a thought: try removing one of the boosters. Perhaps your <br>
transmitter has been upgraded to higher power and now you have too much <br>
signal. In any case, 2 boosters is unlikely to solve a signal problem.<br>
And if you need even a single booster, it should be on the mast head not<br>
after the long run of cable. All things worth sorting out, whether or<br>
not you stick with MythTV or move to another system.<br>
<br>
Cheers,<br>
Paul.<br>
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<div>Paul has suggested removing one of your amplifiers. Expanding that signal overload thinking, do you also have a low noise amplifier in your tuner(s) turned on?</div>
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<div>A further thought. Could you have multiple instances of your channels - one set from Mendip, another set from a more distant transmitter? Myth has been reported to randomly choose one or the other, hence the variable nature of you recordings.</div>
<div>You can either check this with the backend channel editor and hide channels appropriately or alternatively the perl based editor https://www.mythtv.org/wiki/Channel_Editor has a sort to readily identify these duplicates, it will give a list of the multiplexes
from which you can identify the rogue ones, and a bulk 'hide all in multiplex N ' feature.</div>
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<div>Phil</div>
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