[mythtv-users] Fwd: Pixelation/Bad Recordings HDHR Prime -- I am at my wits end

[Captain Hook]

On Fri, Aug 30, 2013 at 2:10 PM, Joseph Fry <joe at thefrys.com> wrote:

> On Tue, Aug 27, 2013 at 4:57 PM, Captain Hook <captainhookzero at gmail.com>
> wrote:
> > Background
> >  I have been having intermittent issues with recording quality with my
> > HDHomeRun Prime with Comcast cablecard since the inception of this
> project.
> > I am really remembering why I gave this HTPC nonsense up years ago, but
> I'm
> > already significantly invested in this at this point and I am determined
> to
> > see it through.
> >
> > Issues
> >  Intermittent issues with recordings on MythTV. Some recordings will be
> > perfect, others will have pixelation periodically, others will have heavy
> > pixelation, yet others will be so bad that the recordings stop during
> > playback. The same channel will not behave the same twice--sometimes
> things
> > are fine, other times they are terrible. This seems to happen on any
> channel
> > and do not occur at any particular time of the day or during any other
> > operations or recordings on my network.
> >
> > During playback the pixelation occurs at exactly the same points on
> damaged
> > recordings. This pixelation is also present in other frontends that I
> have
> > used as well as playing them in VLC.
>
> Not sure it's any help, but I used to have a very similar problem but
> it only happend on a few channels.  Came to find out that those
> channels also happened to be on the same frequency as my Verizon LTE
> phone... every time I had my phone in my office with me, I would have
> damaged recordings on my prime.  The same channels were unaffected on
> my standard HDHR... which suggests that the Prime is more susceptible
> to interference.
>
> I made a tinfoil faraday cage for my Prime and haven't seen the issue
> since.
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There's an interesting theory.  I do have a Sprint LTE phone, but there is
no LTE in my area and I am on wifi at home all the time except when the
screen is off.  I do have a Sprint Airrave in my house as well (mini cell
tower via internet) since my signal is horrible in my house, though it is
quite far from my Prime and so is my phone 95% of the time.

That said, I do know for sure that I have had damaged recordings when I
have not been home, so I don't think this is the cause, although I guess it
could be some other sort of interference.
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