Mike,

There is a conflict between the K60XV and the KAT2.
Replace KAT2 R6 with a 470 ohm resistor - there was one shipped with the 
XV60 for that purpose.
See item 3 on the K60XV errata sheet.

73,
Don W3FPR

On 3/7/2012 4:04 PM, Mike Mussler wrote:
> In my K2 (serial 5625) I am using the K60XV option to drive a transverter. I
> note that the low power output port power follows the power control setting
> until 0.5 mW is reached. At that point the power control and LCD readout
> continue to show increased power level up to 1.27 mW, but the output
> measured on the XVTR output port remains limited at 0.5 mW.
>
>
>
> Per the troubleshooting steps I have checked diodes D1 and D2, the XVTR
> components and the coax cable connections on the RF board and nothing
> appears to be amiss.
>
>
>
> I noted that with the KAT2 connector disconnected from the control board,
> the output level in question operates per the K60XV manual; i.e. output
> follows the power level control and LCD readout all the way up to 1.27 mW.
>
>
>
> Besides the possibility of component problems, is there a setting or set up
> step I am missing? Or perhaps a conflict between microcontrollers among the
> options I am using in my K2?
>
>
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