Help- 60 cycle Hum - ground loop problem

Ground the cable splitter to the electrical panel as a test.
Just use the outside box screw if you can. The cable and the house have different grounds.
Tim

Bob Bundus helped me with the same problem. I took a piece of lamp cord and wrapped it around the center screw on an electrical outlet and cable tied it to the cable input on the wall (then screwed the coax cable from there into the HT system) and it successfully grounded the cable to house ground. I used a white wire so it doesn't show (very much)
AJ

I use the MAGIC cable TV ground isolation transformer. No hum at all! This will keep the house ground out of your interconnect shields. This should keep you from having to use cheater plugs. Remember, code in most places requires the incoming CATV line to be grounded to the house ground at the point of entry to the house. Do not defeat this. Also, many homes are pre-wired for CATV in numerous rooms... during construction the CATV may well be grounded to the house ground in many other inaccessible places as well.