In reply to:
Is this a regional regulation? I have read a few articles that say you should have the cable grounded in the same place as your houses earth ground. That is how mine is set up, it is normal here in Il. for the cable and telephone co. to ground to the same location as Com Ed.
It's best to have them as close as possible without actually bonding them. CATV and telecom grounding at the same place is illegal here (under the CEC - at least of MY understanding at my last reading about a year ago) and I found a site a while back that said the same applied in the US - written by an electrician and showing some seriously dangerous and illegal grounding methods... the telecom side is covered in TIA's document J-STD-607, not sure offhand where CATV standards are.
Just two sides at battle here... you want your CATV on as close a ground plane as possible as the mains (to reduce ground differential), but without being connected to reduce the chance of mains power being fed into your CATV.
Bren R.
