[Elecraft] K2 Calibration using WWV

[Ron D'Eau Claire]

<snip>
I connect the computer running Spectrogram and listen to the transmitted
tones - WWV transmits 500 and 600 Hz tones on alternate minutes, and I look
for these tones displayed on the Spectrogram screen - I set markers at 500
Hz and 600 Hz - then adjust the tuning until the tones line up with the
markers.  It is easy to get within 10 Hz this way. </snip>

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Of course that's limited by the accuracy of the clock in your computer sound
card, which in some computers isn't very accurate! 

Ron AC7AC