[Elecraft] K3: Use AM SYNC on WWV to calibrate DDS?

[Duncan Carter]

The method that I use to calibrate the frequency of my K3 is to use 2.5, 
5, 10, and 15 MHz WWV as calibration signals and adjust CONFIG | REF CAL 
on cw so that the signals are as close to 600 Hz as possible as measured 
in multipsk's spectrum display in psk31, highlighting the WWV frequency 
and reading the audio frequency of the spectrum line in multipsk's RX 
frequency text display.  Because of the way the K3 generates its 
signals, the calibration varies from band to band but I can easily keep 
the K3 within +/- 1 HZ using this method.  I have settings for each of 
these WWV frequencies in memory on adjacent memory settings so I can 
check them momentarily once I've clicked M>V once quickly without 
needing to click M>V a second time.

I'm a paid multipsk customer but it's a free download at the level 
needed to do this.

Dunc, W5DC