>I think that it is the lack of shielding on the G4 that may be >causing the problems. Except that N2ERN (me) has absolutely no problem, even with 1500 W with my 84/867 and Studio Display, FT990 and AL-1500. No RFI in either direction, no crashes, no nuttin'. Everything I would expect from my Mac and my Yaesu. harris N2ERN