Good point, Ronin...I remember one session in which I had a shortwave receiver in use for a randomish noise layer on a techno track. Heard something odd, though; it sounded like one of my synths. And sure enough, it WAS...my PPG Wave 2.3 was spewing RF up in the 8 MHz range and retransmitting the synth's sound! Naturally, I figured out how to layer that into the track, too...