[mythtvnz] Almost out of ideas - occasional pixelation only on MythTV

[Stephen Worthington]

On Sun, 16 Oct 2016 21:55:55 +1300, you wrote:

>Hi,
>
> 
>
>We are in Ranui Auckland and I am having lots of problems with intermittent
>pixelation.
>
> 
>
>It started a few months back and since then we have had the aerial guy in at
>least 3 times. First time he tweaked the position which was a bit off, next
>he added a masthead amp and lastly he added a filter and replaced the
>balun/element.
>
> 
>
>It was a bit confusing because we also had really bad problems with the TV
>even though the signal was good. Turned out the TV problem was Chromecast -
>when it was plugged in terrestrial picture was terrible. 
>
> 
>
>I am running, an admittedly old 0.25 Myth server with 2 x HDHomeRun - only
>using one at a time currently. The original HDHR I got from Hadley in 2013
>the second I got a few months ago from TradeMe for $50. Both are similar
>serial numbers and same model.
>
> 
>
>Far as I can tell now there isn't any pixelation with the TV, but to be fair
>we don't use it much. But with Myth it can get quite bad but most of the
>time it is ok, so maybe every 10 minutes it plays up - all depends. Given
>what we have done aerial wise I tried everything I could with Myth, changed
>the storage from local to NAS, restarted everything and the network is
>gigabit with no issues - all wired not wifi. Both HDHRs exhibit the same
>problem. The HDHRs are reporting 100% for signal strength, signal quality
>and  symbol quality. 
>
> 
>
>I spoke to the guys at Alkris Signal Solutions, who are close and they are
>suggesting a PA2 and I am also thinking of replacing the coax so it's 100%
>clean.
>
> 
>
>Before I go out and spend even more money, given I have spent over $300 on
>aerial stuff so far, I just thought I would ask if a PA2 sounded like a good
>idea. Alkris know the area and thought that should work a treat.
>
> 
>
>Cheers

If you watch TV directly from the HDHRs (on a tablet, for example), do
you see the same problems?  Trying that should tell you whether the
problem is in MythTV or the PC hardware, or somewhere else.