[Elecraft] K2 #2555 on air! couple of questions...

[Vic Rosenthal]

Andreas Hofmann wrote:
> 
> When I change C22 on the control board, nothing changes on my frequency
> display at all.  According to manual page 57, I should be able to change
> the Oscillator calibration by changing C22.
> 
> Steps I did:
> I have the frequency counter probe connected to TP3.
> Switched to LSB.
> I found the WWV signal at 10,000.51 ( I guess it is supposed to be at
> exactly 10,000.00)
> 
> Should I desolder C22?

No!  What you need to do is note how much WWV appears to be off (you are + 510
Hz).  Connect the probe to TP1, switch to CAL FCTR and adjust C22 until the
reading is 510 Hz LESS than it was before.  Then do CAL PLL and CAL FIL again. 
You MUST rerun these procedures after changing C22 to see the changes.  Then
look at WWV again -- you should be closer.  You might have to do this more than
once.
 
73,
Vic, K2VCO
Fresno CA