F region - A high-up part of the sky where electrons go wild because of

A high-up part of the sky where electrons go wild because of the sun, and it’s basically the reason your radio works when it feels like it.

My radio is acting like it just got a promotion, and I know the F region is to blame.

The F region is the only reason I haven’t thrown my radio out the window yet.

If the F region was a person, it would be the life of the party.