[mythtv-users] Electrical power in my cable line? Is that bad?

Keith Pyle kpyle at austin.rr.com
Fri Sep 7 03:15:34 UTC 2007

Brian Wood wrote:

> Such problems can show up as AC hum in the video, usually as a double
> bar slowly rising through the picture (assuming NTSC).

I see a horizontal distortion on many recordings (see attachment, just below the rating box).  Is this a manifestation of the AC hum Brian mentioned?  I only see this on recordings captured with my PVR-500, not on televisions viewing the signal directly.

I don't have a STB, but Time Warner did install a powered amplifier before I set up the PVR.  The outlets in use are properly wired (polarity and ground).

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