Can't answer your questions, Tom but I'd sure like to hear it for myself. 
Let me know when you have time and maybe we can play around a bit on 40. 
Lou
----- Original Message ----- 
From: "T Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, October 18, 2008 9:05 PM
Subject: status update on MC60 problem with TS480


> Hi, all.
>
> Well, this evening, I made the ground connection that has been discussed 
> as
> a way to solve the RFI problem with the MC60 mic, when used with the 
> TS480.
> I screwed one end of a 14-gauge piece of wire to the base of the mic, and
> the other to the ground screw on the TS480 using spade lugs.
>
> I did a test on 75 meters, which seemed to be the band where the problem 
> had
> been most apparent, and it looks like I might have solved the problem.
>
> However, the people I talked to said my audio needed more base, so I may
> still have to work with the TX equalization settings on the 480 to see 
> which
> setting might sound best.  Right now, I have the TX equalization set to
> "off".
>
> I did notice one interesting thing, though.
>
> Even with the new ground connection, my audio gets much worse when I 
> switch
> the pre-amp to "out".  If it is "in", I get good audio reports.  Wouldn't
> the "in" setting mean the pre-amp is in the circuit?  Why would my signal
> get worse with the pre-amp "out"?
>
> Still learning here, obviously.
>
> 73 from Tom Behler:  KB8TYJ