The power supply I'm using has a three pin plug.
I can't hear the hum on the ts2000 monitor.
I don't get as many reports about the hum using fm and I get fewer reports above
6 meters.
I expect to have to replace the filter caps in the power supply in the not too
distant future but running the rig deirectly from a car battery doesn't solve
the hum issue. It is almost reported to me as rf on the signal and recordings
guys have played me back on air do sound to me like rf rather than mic hum.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html