RF you usually hear on the monitor so if it sounds good on the monitor, but 
it still does it on a car battery, that's a strange one.
----- Original Message ----- 
From: "Tom Brennan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, April 18, 2013 9:29 PM
Subject: Re: Mike hum


> 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
>