Originally Posted by N3LYT
The inverter noise issue in my camper was pretty bad on some bands so when I am working HF I turn off the inverter and go with just the batteries. I added a circuit to the breaker box just for the inverter so it can be turn off independently. It's a modern charger so it does not take long to recharge the batteries. I guess you have tried a low pass filter to keep you from annoying your neighbors.
#1 on the list of reasons I choose a TRUE SINE WAVE inverter, After I got it I found several more reasons, but that was #! on the list.