What causes amps to pick up radio signals? To me, it seems like more gain and volume = louder radio signal. Take my home setup for example. I'm running a volume pedal, wah pedal, and overdrive pedal in front of a Classic 50, and chorus, delay, and reverb in the loop. Clean channel is crystal clear, overdrive channel has slight radio signal, overdrive channel with overdrive pedal engaged has a loud radio signal, and the louder I turn the amp up, the more prominent the radio signal is. I've also noticed this with a few other amps, and when I play with my PODxt plugged into my computer on a higher gain setting. What causes this, and how can it be prevented?