Quote:
Originally Posted by W9TR
Howard,
Does the hum vary with volume? Or is it there all the time, at a low level?
If you pull the cable feed to the Comcast box and you've still got hum, try putting a common mode choke on the HDMI cable.
Tom
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The hum doesn't vary with volume, it's there all the time at a low level. I'll give both this and the isolator a try. Thanks!