Mike, I have tried to use mine and with the preamp enabled, I get 
RF feedback.  Folks on the air suggested connecting the mic 
directly to the 590 using the cord that screws into the base but 
screw it directly into the back end of the mic, it's the same 
connector.  So, you are bi-passing the base preamp, just using 
the base as a stand for the mic.  On my TMV71A, the mic with the 
preamp in the circuit works fine.  Hope this helps, 73, Jim 
WA6EKS

 ----- Original Message -----
From: Mike Keithley <[log in to unmask]
To: [log in to unmask]
Date sent: Tue, 23 Dec 2014 14:46:06 -0800
Subject: Kenwood Mc60A desktop mic

Hello list,

Does anyone here use the Kenwood MC60A desktop mic? I ordered one 
with my TS590, and I can't figure out how to insert the batteries 
to power the preamp.  I got the PDF manual, and it talks about 
removing four screws to get at the battery compartment.  But the 
bottom of my unit has six screws, four of which hold the rubber 
feet to the case.  I took all the screws out except for the two 
screws holding what I think is the impedance switch but can't get 
the bottom plate off.  The fit is so snug I can't insert the 
blade of a screwdriver to pry it off.

Thanks for any help.

So does anyone here use this mic?