I was able to move the top hat wire on the Inverted L so that it now heads East instead of North, which on 160M offers these benefits:
The only thing that it didn’t do is get rid of me turning on the HVAC blower when I transmit on 160M. Even at 100 watts! However, futzing in the back jarred my memory, and its no coincidence. This past spring – when we had annual HVAC maintenance, the tech replaced a condenser in the AC unit. Ever since he did that – I have had this problem. I am sure the condenser is acting like an antenna.
I solved the problem. I just turn the damn thing off! I will also attempt to add snap on chokes, but its kind of moot – because when the heater comes on – it trashes my radio on all bands. So – I will heat the house up for Kat and turn the damn thing off when I’m in a 160M pileup. Problem solved!
I have several things in the house that cause RFI, and have those all under control – so its a good feeling to know that I can at least get back on 160 and not have the AC bug my wife while she is sleeping!