I'm referring to a blippy tone lasting a couple of seconds, about 1kHz frequency, that randomly comes from instrument rigs, computer speakers, car radios, etc... not just mine, but other people's. It's rather distressing... makes me think the gear is failing. Could it be from faulty transistors? Static electricity? Sunspots? Encoded transmissions from either the NSA, or the Blitnarfs on planet Hontel Fufni?