Radio Signals in POD HD Posted December 29, 2013 First, you need to determine where the signals are being picked up. Do you hear them through headphones plugged directly into the Pod? If not, it's probably a bad ground on a cable coming out of the Pod to your monitoring system. If you do hear them through the phones, does it happen with other guitar cables? If not, it's a bad guitar cable. If it only happens with a certain guitar, it's something in the guitar, like maybe a bad jack. If you do discover that it is definitely the Pod, then see if it happens when all inputs are muted. If not, it might be a bad input jack. Try switching inputs to see if it makes a difference. Is the FX loop active? Disable it. If that solves it, It might be the FX return or send jack or the cables connected to it. Remove the cables. If you have isolated each jack and that's not the issue and it's something internal, it would need servicing.