[Elecraft] Alignment and Test Part II

Don Wilhelm w3fpr at embarqmail.com
Sun Aug 1 09:37:43 EDT 2010


Brian,

That is entirely normal.  Which one of the 3 methods mentioned are you 
using to calibrate the 4 MHz reference?
1) Measure the TP3 frequency with an accurate external counter - adjust 
C22 until the K2 display matches the external counter.
2) Listen to the 4 MHz signal with another receiver - tune C22 until 
right on 4 MHz.
3) Just set the C22 trimmer slot to the midpoint.

Actually a better method (greater accuracy) exists - wait until you have 
completed the K2 and you can receive 10 MHz ((or 15 MHz) WWV, then use 
the N6KR method.  You can find the "How-To" on my website www.w3fpr.com 
article on K2 Dial Calibration.

73,
Don W3FPR

Brian Denley wrote:
> While doing the 4 MHz Oscillator calibration, CAL FCTR shows 12100.10 which 
> seem nominal.  But adjusting C22 doesn't allow me to change it very much at 
> all, maybe a few hundred Hz.  It this normal?
> Thanks for any help.
>
>   


More information about the Elecraft mailing list