The HF noise floor in my shack exploded to S9+ this week. From 160m through 20. 10m seemed quiet. I went through all of my gear. No joy. I was just about ready to start taking down antennas…
Then I realized that the neighbors are back from AZ for the season with their RVs. Anyway, I finally caught them onsite and asked some questions. Turns out a Lithium battery charger was operating the last few days… since the 2nd RV pulled in. I asked him to unplug. And the noise floor on 20m instantly dropped to S1.
So I was able to share about Ham Radio discuss RF, and the FCC a little. Mainly I pointed out – wherever they operate that thing RVing around, they’ll be energizing the spectrum. Blasting Hams out of signal. Saddest looks of incomprehension I’ve received in quite a while.
Anyway, I know what causes my noise to jump. And if memory serves, past incidences with high RF coincide with periods when they’ve been around. Probably could have noticed earlier.
One brain cramp resolved.
Coos County Radio Club 
David! Thanks for sharing this! Such a good reminder re: RF and the days we live in with so many ‘electronic’ ect addition out there now. Glad you did Not start de-antennaing (if thats a word) your set up! TY for the share! Happy Memorial day! m
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