I have a Icom 746Pro that I picked up used. It seems useless on 6 meters?? I tried to work the CY9SS on 6 meters and the thing trips my MFJ power supply. Only on 6 meters. All the other bands are OK. Sounds like a self oscillation thing. Anyone have the same problem and how was it resolved. By the way I'm running it into a SteppIR beam at 1:1 SWR. Thanks. George