elaich wrote:


I also noticed an odd phenomenon back in the 80's when I lived in the
Sacramento River Delta. I always had KNBR on at night. A very powerful
local signal in that area. Coming home at night from town, when I reached a
certain point, KNBR's signal sounded like it was phasing or cancelling
itself out. It was momentary, and always happened at exactly the same
place. I've never explained that one, either.

That's where the sky wave and the ground wave cancel each other out.
KNX has the same deal around Beaumont.