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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