[Elecraft] SETTING THE K2 REFERENCE OSCILLATOR

Don Wilhelm donwilh at embarqmail.com
Fri Jun 5 11:58:20 EDT 2020


Al,

The C22 setting does nothing to change the K2 display - you must run CAL 
PLL and CAL FIL (for all filters) before any change in the display takes 
place.  Normally, the reference oscillator only serves as a clock for 
the MCU - the frequency display does not depend on it.

See the K2 Dial Calibration on my website www.w3fpr.com.
If you are using RWM (which transmits only a carrier), you should use 
the method EA3ADV and I developed to use only a carrier instead of the 
transmitted tones such as those from WWV.

73,
Don W3FPR

On 6/5/2020 4:59 AM, W4RAM wrote:
> Good morning,
> I am looking for assistance to be able to properly complete the reference
> oscillator calibration.
> 
> Situation: despite moving C22 I don't see any change or correction when I
> try to zero beat signal from RWM (9,996.00)
> 
> Performed procedure:
> 1. I tuned the K2 with the RWM signal. I was able to "zero beat" in 9,998.25
> LSB (diff. +2.25).
> 2. I connected the internal counter from P6 to TP1.
> 3. I adjusted C22 (moved counterclockwise)
> 
> I did not continue with Run CAL PLL and CAL FIL.
> I am using vertical HF external antenna.
> 


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