Line Voltage Interference Cure? (1 Viewer)

[Dermot]

I am getting voltage interference from incoming CATV signal on my whole house audio system.
It is causing a slight hum in the background which is noticable in between songs at high volumes or at the end of CD's.
The installer unhooked the CATV and it went away so I know it is the source.
He suggested the cable company could filter it.
Any suggestions?
TIA

 

[Chu Gai]

my first suggestion is to ensure the cable company has grounded things properly. assuming the cable came in via the place where your ac power came in, the proper ground is to your grounding rod. however even then, sometimes problems occur. if they can't cure it a variety of products are out there such as from mondial (sp?) which is a little pricey, jensentransformers, etc. let us know which approach you plan on taking.
on a side note, you could try running the cable directly into the tv as opposed to using your receiver or whatever to do the switching.

 

[Bob McElfresh]

Try this site for Fixing Cable-TV Hum in audio systems

 

[Dermot]

Bob,
That is an excellent article.
I will try both and contact my cable company.
There are better response here than in the AVS forum
Thanks!