I started a thread on this (about the same time this one was started), over on the Engineering side, hoping to start some dialogue on the interference issues....but there isn't much activity on there like this one.
What DO we do with the "Silent" stations' channels, though? Some broadcasters I've talked to would rather sit on a bad AM channel, than give it up after (presumably) getting an FM channel or FM translator. The old adage of "Bad real estate is better than no real estate at all" comes to mind....stations would rather hold that channel than allow another owner to eventually take it. So, you'd have to turn in the old slots to the FCC, with some guarantee that they would be permanently deleted.
I guess we could turn the entire AM Broadcast Band over to Mexico, but what if THEY ran the power up really high, and put some sort of desirable programming on it (think, "American Graffiti" and the Wolfman)? Would it siphon off listeners, and defeat the purpose....especially near the borders.........strike that,...the signals would be audible everywhere at night with no U.S. competition.
As for the interference issues, though,....I got to thinking about this last night:
What if somebody broke in at your site and stole your ground system? Would you just shrug it off, and lose a huge chunk of your audience? What if they broke in at the transmitter (AM, FM, TV,...doesn't matter) and vandalized your transmitter, so it only made 10% power. You'd lose a lot of audience, but would you care?
Of course, you'd care. You'd likely be P.O.'ed. You'd call the cops and the FCC.
Well, there are vandals at work, stealing our ability to reach our audience with OUR Federally licensed facilities. They are the consumer electronics manufacturers, with their noisy junk. They are the power utilities, who don't maintain their equipment. They are the manufacturers of noisy new light bulbs. They are the people who don't know, and possibly don't care, that their stuff is causing interference.
They are stealing our ability to do our jobs. Why CAN'T we educate the public a little? Why CAN'T we put some useful information on our websites? Why CAN'T we refer interference complaints to the local utilities and to the FCC? (We do it with "Pirates", but not other spectral vandals?)
Why CAN'T we work to keep what is OURS, instead of just "packing up" and moving (entirely) to a new technology. The new technologies are an asset, but they can't replace what we already have. Any kid with a keyboard can do the new technologies. We have the advantage of being licensed broadcasters, who serve our communities well, and should have certain standards. The rest are just playing.