Home Planar Speaker Asylum

Welcome! Need support, you got it. Or share your ideas and experiences.

RE: How do I eliminate hum?

see this picture:

http://www.hdtvprimer.com/ANTENNAS/grounding.gif

note that in that picture the coax and the home AC breaker box are all on the same ground.

If for some reason your coax is not grounded near your home then it is referencing someother ground in the CABLETV system which will be different from your home ground.

Note that rather than a ground rod, often your home will be tied to a water pipe which hopefully at some point hits an earth ground and is not a plastic pipe.


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