Wolfgang,
The extra hardware mike gain was added in a recent firmware upgrade. 
According to ten-tec, it was added because additional gain was needed for 
some microphones.  The amp uses  previously unsed circutry in the radio.  I 
leave mine set at zero.  The RF Squared website has an explanation of this 
firmware change.
73 de Ken W5KQ
----- Original Message ----- 
From: <dl2rdh@aol.com>
To: <TenTec@contesting.com>
Sent: Wednesday, November 14, 2007 2:37 AM
Subject: [TenTec] H/W Mic Gain - Orion 2 ??
> Hello !
>
> I use the ORION II and the manual version 3 from march 2006. I found H/W 
> Mic Gain in the SSB-menu.
> This function is not described in my manual and I am looking for more 
> information about this.
> (software 2.038k)
>
> Vy 73 de Wolfgang, DL2RDH
> dl2rdh@aol.com
>
>
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