I can confirm this behavior with the K3 and WriteLog 11.x.
It arises because the K3 stores mode with band. If the logging program
sends a change mode command before a "new frequency" command resulting
in a band change, the mode change is applied to the old band while the
new frequency/band inherits the last used mode on that band.
With the Elecraft K3 - and possibly both the K2 and KX3 - a logger
should always send the current (desired) mode after any frequency
change.
73,
... Joe, W4TV
On 10/29/2012 10:37 PM, Georgens, Tom wrote:
This weekend in the CQWW, I noticed that the K3 was occasionally on the wrong
sideband. There was no clear root cause, and it was annoying.
I did some testing today and have a few observations and a repeatable (at least
for me) test.
If you set the 6 main bands for the conventional sidebands, upper for 10-20
and lower for 40-160, and then cycle the band button on the K3 through the
bands sequentially, everything is fine.
If you do the same with Writelog (Alt-F1) the sidebands get changed
If you start on 10, and go through the bands sequentially through 160.
Everything looks fine. However, if you manually change the bands directly on
the radio, you will see that 20 meters now will be set for lower sideband. If
you continue to cycle the bands using writelog, and wrap from 160 to 10, the
160 sideband selection with change from LSB to USB. It seems that whenever you
move from a band with one convention for sideband to a band with the opposite
convention, the band you are coming from gets changed.
If you watch closely, when you press Alt-F1, the sideband setting on the radio
will change before the frequency changes. This looks suspicious to me
I should add that I have two K3's for a SO2R setup with a single computer.
Both radios do the same thing
I don't know whether this is a K3 problem or a Writelog issue. The K3's have
been in use for a couple of years, and I probably have not changed Writelog in
that timeframe (10.80F). If this has always been a problem, I cannot believe
that I just noticed it. The K3 firmware, now 4.48, has been changed several
times in this timeframe
Both products are settings intensive so there may be some "knob" I am missing.
Thanks for your help
73 Tom W2SC 8P5A
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