Likely someone turned it up in the first place.
----- Original Message ----- 
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, May 10, 2007 6:58 AM
Subject: changing mike gain on the tmv7a


> Hi Tom and all:
>
> The microphone gain cannot be changed from the menus or with an internal
> adjustment.
> To change the gain or adjust deviation, one must go into the service menu. 
> To
> do this, a ps2 cable must be plugged into the data jack on the rig and two 
> of
> the pins shorted together.  When the rig powers on after this, a service 
> menu
> appears after a few button press combinations.
> Probably a little more PITA then it is worth.
> All I can suggest is perhaps placing some thin tape over the pin hole 
> where the
> microphone element is inside the mike.
> It is odd you have a hot mike since all the tmv7a's i have ever heard or 
> used
> have fairly low audio.
> You are lucky to have one that you don't have to scream into and eat the 
> mike.
> There is probably a resister mod that can be done inside the microphone to 
> tone
> it down a bit...but again, its a PITA.
> Try some scotch tape over the pin hole first and see if that helps.
> Nothing too thick because that would likely make the audio mufly.
> 73
> Colin, V A6BKX and Rowan the ham dog