Conflating two things from recent posts on this topic - I have the G50 on my big pedalboard which I was using at rehearsal, but I'd forgotten my spare Eneloops and the ones in the transmitter were nearly flat so I went in direct instead. While rehearsing, though, I noticed the green lights on the receiver come on, so someone else in the rehearsal studios was using a Line 6 on channel 1. Couldn't be arsed to plug the receiver back in to find out what was using it, but I was tempted to plug my transmitter back in and send a bit of signal back the other way.