Hi Poe,

You are correct, I have done a ton of learning about electrical over the last week and I was getting a "phantom reading". High impedance multimeters can get false readings when they are close to a ground wire. Essentially if I have just one probe of the multimeter close to or touching the ground it will read like both probes are in contact with something that has a small charge. I don't understand the science behind it, but I can get the multimeter to give me a reading on every test it can do with the exception of continuity tests.

I had an electrician walk me through some basic test to determine if the outlet's grounding was good, which we established it's very likely that it is wired correctly, and that there also isn't any voltage on the shield of the coax cable.

Guess the last technician wasn't aware of the phantom reading phenomena and just assumed his multimeter was correct, but I didn't notice where his prongs were when he showed me the reading on his multimeter.

I have the supervisor coming out next week, I will see what he has to say.