I ran the KX3 temp compensation procedure twice (the first run was a
learning experience so feel I got a good run on #2). I used my AG3
coupled with a very good freq counter.
JT65 is a synchronous code so that demands good frequency control
(<+/- 10 Hz) and near perfect timing (< 1 second). Both are
essential to good decodes of very weak signals. There is no casual
relationship between them. If either is off very much signals are not decoded.
I just performed frequency calibration for one of my transverter
customers and got the 144-MHz transverter within 3-Hz (tuned heated
xtal osc.). The K3 shows frequency within 1-Hz at 28-MHz (using
EXREF + ext OCXO). Both were run for two hours before calibrating.
73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com
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