Richard Dillman, who is the driving force behind the Maritime Radio Historical Society (MRHS) has produced a show on KWMR called “Incredible Radio Tales.” This is a show that talks about the the various sounds heard on the radio, both natural and man made. Many of the shortwave frequencies are used for “utility” uses.
He does a great job explaining things like Skyking, numbers stations and so forth. It is a great show, I can imagine this story being told on Halloween.
You can listen to the first episode here, its about an hour long:
This is a great example of local radio doing local things. I have no idea if the other episodes are going to be put up on line.