The 5 Creepiest Unexplained Broadcasts
As we speak, broadcast signals are moving invisibly through the air all around you, from millions of sources. And some of them are really, really freaking weird. We know this because occasionally somebody with a shortwave radio, or a special antenna or even a common household television, will capture one of these mystery signals and suddenly start broadcasting utter insanity. Where do these signals come from? What is it? It is an irritating, electronic noise, not unlike the sound of a truck horn played through a cheese grater. Hammertime? In its 20-something year run, the sound has been interrupted only three times, the earliest known time being Christmas Eve in 1997. The case gets curiouser when you realize that the noise is apparently something held up to a live microphone rather than a recording or just some random feedback (distant conversations can be sometimes heard behind the sound, though they're difficult to decipher). It sounds like "robble-robble." So What's the Deal? Our theory?
Related: shortwave radio