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

[Stephen P. Villano]

A gain of 10.2-11 at the end of the run is a gain of 10.2-11 of both
noise and signal, where the noise is much, much higher. That is why it's
been strongly suggested that you put the booster at the entry, where the
signal is at its strongest and the noise at its minimum.
Placing the amplifier at the lossy end is one of the most common errors
in cable runs.

On 8/27/13 8:13 PM, Captain Hook wrote:
> That strength is without the booster. Here is more info on the booster
> if you're interested. Looks like the gain is 10.2-11
> dB. http://www.motorolasolutions.com/web/Business/Products/Cable%20Broadband/RF%20Amplifiers/BDA100/_Documents/staticfile/BDA_Catalog_Specifications.pdf
>
>
> I will definitely take your advice. My plan is to move the HDHR around
> and see what the readings are in different areas. 
>
> Thanks. 
>
> On Tuesday, August 27, 2013, Chris Porter wrote:
>
>     On Tue, Aug 27, 2013 at 2:56 PM, Captain Hook
>     <captainhookzero at gmail.com> wrote:
>
>
>
>         On Tue, Aug 27, 2013 at 5:51 PM, Chris Porter
>         <hoodlum7 at gmail.com> wrote:
>
>             On Tue, Aug 27, 2013 at 2:30 PM, Captain Hook
>             <captainhookzero at gmail.com> wrote:
>
>
>
>                 On Tue, Aug 27, 2013 at 5:22 PM, Chris Porter
>                 <hoodlum7 at gmail.com> wrote:
>
>                     On Tue, Aug 27, 2013 at 2:15 PM, Captain Hook
>                     <captainhookzero at gmail.com> wrote:
>
>                         I am not sure how much bandwidth the packet
>                         loss test attempted to push.  This issue
>                         occurs when there is only a single recording
>                         happening, if that makes any difference.
>                          
>                         Here is a link to a diagram of my network. 
>                         Yes, my TrendNET 8 port gigabit switch is just
>                         an unmanaged switch.  I have a Sonicwall
>                         firewall and a separate Meraki access point
>                         (also both connected to the switch).  My
>                         frontend has another switch connected (also a
>                         TrendNET), but that is upstairs.  For what
>                         it's worth, my brand new frontend does act
>                         laggy at times with fast forward and loading
>                         the recordings screen but this is fairly rare.
>                          
>                         http://s21.postimg.org/iuqsauaif/Coax_Wiring_Home.jpg
>                          
>                         The splitter just prior to my HDHR Prime has
>                         alternated between Monster Cable splitter,
>                         Motorola 2 port signal booster, and a splitter
>                         I obtained from Comcast years ago.  All three
>                         exhibit this issue.
>
>
>                         On Tue, Aug 27, 2013 at 5:09 PM, Chris Porter
>                         <hoodlum7 at gmail.com> wrote:
>
>                             On Tue, Aug 27, 2013 at 1:57 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 dam
>
>     Hmmm, is the signal strength value -4.6dBmv with the booster or
>     without? I strongly suggest your take my advice about placement of
>     the amp. I am curious as to the dB signal output of the amp is it
>     12dB?
>
>     -- 
>     Working on World Domination since 2001
>
>
>
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