On 8/6/2020 2:32 PM, eric norris via Elecraft wrote:
My house is 65 yrs old, none of the outlets have grounds, not even the
bathroom. The entire kitchen is on one circuit, etc, etc.
Before I call the Comcast supervisor, I'm hoping for some advice from the group.
While the house is probably "grandfathered" from complying with current
Electrical Code, you should definitely check out the grounding and
bonding of your home and station. At a minimum, you should have
everything in your station bonded, have a decent collection of driven
rods all bonded together, to all other grounds (telco, power entry,
Comcast).
http://k9yc.com/GroundingAndAudio.pdf
That said, it's Comcast's problem to clean up their equipment and cable
installation. Common causes of issues like this are poor coax connectors
and installation, both those done by Comcast and those done by a
customer's illegal "tap-off." Another likely cause is a Pin One-like
Problem where coax cables connect to their victim electronics. If
possible at this time, I'd try to get ARRL involved.
73, Jim K9YC
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