Posted by sailplane on Aug 11, 2017; 5:23pm
URL: https://www.es-forum.com/Grounding-Shielding-tp4030801p4030808.html

This was the second night, and full night since I removed the ground from the shielding and I was finally able to sleep properly.. I am behind on sleep a lot now.

So, I am unsure what is wrong with grounding to metal ductwork, but I suspect electrical ground is also just as bad.  I am turning off almost all breakers at night, and still that ground was no good.  I definitely have something strange coming up the ground wire, but not sure how to measure what is might be.