[Elecraft] RF gain calibration (K3 Utility for Mac)

[Richard S. Lindzen]

Dear Lyle,

I've connected the XG-2 to Ant 1, and gone through the calibration 
routine.  I've turned off the preamp (and the attenuator), and used 
the utility to calibrate.  The s-meter still reads S7 for the XG-2, 
though it rises to s8+ when I turn on the preamp.  This also puzzles 
me.  When I first used the K3, I was under the impression that the 
s-meter reading was independent of whether the preamp was on or 
not.  Have recent firmware changes alterred this?  More likely, I'm 
doing something wrong.  Incidentally, how close to the stated 
frequencies are the crystals in the XG-2?

73,

Dick
KA1SA

At 06:03 PM 11/1/2009, you wrote:
>>I've been having trouble calibrating with the Windows version, but 
>>probably I'm doing something wrong.  I have an XG-2 connected to 
>>the receive antenna input.  Does it really have to be connected to Antenna 1?
>
>Yes.  The software was written that way because it is the only 
>antenna connection that is available on every variant of the 
>radio.  You must use Antenna 1.
>
>73,
>
>Lyle KK7P