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

[Joseph Fry]

>>>> 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.
>>>>
>>> But did you turn your mini-cell tower off when you went out? My bet is
>>> that it would still be there, polling, even if you were not.
>>>
>>> --
>>>
>>> Mike Perkins
>>>
>>>
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>>> mythtv-users at mythtv.org
>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>
>>
>> I did not turn off the mini cell tower; it stays on all the time.
>>
>> I have rewired everything again as I am not comfortable using an amplifier
>> to amplify my signal, only to use multiple splitters to reduce it back down.
>> It doesn't seem to make sense.  Instead I have connected the Monster cable
>> 4-way splitter (-7.5dBmV/output) to the cable coming in from Comcast and
>> connected my HDHR Prime directly to one of the outputs.  Another output of
>> the Monster Cable splitter is connected to another splitter
>> (-3.5dBmV/output) which goes to my TVs.  Another output of the Monster Cable
>> splitter then goes to my existing long run to my cable modem.
>>
>> I am now seeing between -0.5dBmV to +1.8dBmV on the HDHR Prime depending on
>> channel and +1.87dBmV to +2.60dBmV on my cable modem (it shows 4 readings
>> for downstream).  In addition, the cable modem seems to now be showing three
>> upstreams when before it was only showing 2.  Although it does say DOCSIS
>> 2.0 for two of the streams and DOCSIS 1.X for another.
>>
>> I am going to send back the Motorola amplifier as I am no longer using it in
>> this scenario.
>
> I had pixelation again in some recordings so I started attempting to
> catch it when it was happening with Live TV.  It was pretty prominent
> on ESPN HD, which I rarely watch. I noticed that this channel had a
> signal strength of +5.86dBmV, at least at that time, so it appears
> that my signal from Comcast is not constant at all.  Generally I was
> seeing 0-2dBmV last time I checked, and compare that with the
> approximately -3.5dBmV I was seeing at the beginning of this thread.
> I am also seeing something strange; Myth was showing me 37% signal
> strength in the menu that fades away when you first turn to the
> channel, but the HDHR Prime Config GUI was showing 100%?  Is this
> common?  Unfortunately I seem to only be able to view the "signal
> strength" in MythTV when I change the channel and am not able to bring
> it up manually, which I think is by design, based on a quick Google
> search.

What channel/frequency is ESPN being carried on?  You can typically
get this info by tuning the channel in mythtv and firing up the HDHR
GUI and looking at the in use tuner.

Once we know the frequency, we might be able to determine if this is
an interference issue... I know it was in my case.