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Old 01-05-2006, 12:27 PM   #2
theCableGuy
High Definition is the definition of life.
 

Join Date: Jan 2005
Posts: 172
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Quote:
Originally Posted by rickbbb
I was wondering why pixelation occurs on some of my cable channels.I recently had to cancel my cinemax HD because there was pixelation going on all the time on that channel.Cable tech and his supervisor just told me they did'nt know why I had that problem and my cable wireing was good...they said it could have to do with where I live....later this week I noticed pixelation on other channels.
Does anyone here know WHY this happens..what different reasons? I rarely have that problem with my other service..which is satelite.
Well I don't know what company they work for, but if a tech supervisor doesn't know how to troubleshoot pixelation, he should find another job. Call the supervisor back and ask him if there is somebody there that has a QAM analyzer that can come out and check your QAM signals. If it's just a few select channels that are pixelating, it could be digital ingress from locally broadcast HD/digital network stations. If it's an across the board problem with all digital and HD channels, odds are there is significant loss of data in the cable that should be easy to identify with a QAM analyzer. Hope that helps
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