Hi All, I had a house fire in June of 2019 and just moved back into my "new" home this past July 2020. Took some time to get the house all refurbished and such, and the long rebuild process was something I was very attentive to. Even went so far as to upgrade my electrical service from the weak 100A I had previously to a 300A service. Even directed the power company how to run the lines from the street. I was on top of most of this very closely watching how things were done. Well ... best laid plans, as they say. After a couple of months of wiring in the new home theater, the data network and server, fiber-optic internet, I finally got around to wiring in my sub-panel for the station. I open the main panel (one of two) and low and behold, Arc Fault Breakers. Oh Oh!!! Now mind you I had specifically asked they not be used, however I think code required them so they put them in regardless. I mean I had to pass inspection after all. So now I bring down my handi-talkie and key the mic near the panel. Yep ... all the AFB's tripped at the same time, shutting off power to 80% of the house. Not all the circuit are using arc fault breakers, but all that did tripped. Grrr ... So I had to go out and and get standard breakers (at some cost mind you) and replace all the arc fault types. Now mind you, they do afford a home owner more safety since they trip by detecting the precursor arc when a line shorts, and trip long before there is a heating issue. That's a good thing. But for us hams, the fact that they detect RF transmitted by the spark to trip the circuit, having these installed makes keeping the power on when transmitting, especially QRO HF, next to impossible. Bear this in mind if you update your AC in your home.