One subtle point is to make certain in CW mode that you have tuned WWV
to the carrier frequency and not to one of the transmitted tones.
You also must tune to the audio pitch you have set for your sidetone.
That is why SPOT is so important.
Listen for the WOW-WOW-WOW of the beat note between WWV and your SPOT
frequency. Tune the VFO until the WOW-WOW-WOW slows to a stop if
possible - then look at the frequency. If it does not have a string of
zeros to the right side, adjust the K3 Reference Oscillator as indicated
in the manual Calibration Procedures - Use Method 2.
I mention this because I have encountered many hams who do not know what
zero-beat is.
73,
Don W3FPR
On 1/18/2019 6:15 PM, Bob McGraw K4TAX wrote:
One easy method is place the radio on the CW mode. Time to one of the WWV
frequencies. Press the SPOT to activate the function. Any difference between
the WWV frequency and the readout is the error.
Bob, K4TAX
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