I'm on my front steps rebuilding a carburetor, listening to 93.3 out of Meyersdale, PA on a 1980s boombox. It's sitting directly on the driveway plugged into an outlet in the basement. At least four different stations have been fading in and out. One said it was from MN, one from Rochester (NY maybe?), and one from SD. I've listened to AM stations on skip at night, on stations like 650 WSM from Nashville, TN and 740 and 900 out of Canada, etc but I've never heard FM do it this extreme.