[Elecraft] K3 Drift

[KD7PY]

I just did a freq. calibration of my K3.
with the dial set to 9.999.000 in usb for wwv at 10 mhz, that gave me a 1
khz tone that I sent to the computer using Spectran that will show the freq
of the audio. I was able to set thr REF CAL in the K3 to be within .03 cycle
of dead beat. I calibrated my Xtal reference osc dead beat with wwv. and
then set the K3 to 6 meters , dial set to 49.999.000 to give a 1 khz tone
and checked the 5 harmonic of the xtal osc. and found that the K3 was only
off 8.68 cycles.  due to the fact I was using the 5th harmonic of the xtal
osc there is some small error. I did a freq drift check before doing the
above and found my K3 had a drift of only 8.5 cycles over a 2 hour warm
up.....

to me this is darn good...

Ed  KD7PY (ex K7WIA)




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