On Sat,9/13/2014 7:33 AM, Dick Dievendorff wrote:
RS-232 is not a protocol that permits two senders. It's ok to "sniff" the Rx
line, multiple receivers.
I doubt that the ACOM (or the Expert) polls the K3. I bet they are passive
listeners.
You need frequency messages to be presented to the ACOM on QSY.
The "normal" technique for this is to turn on K3 Auto Info (a K3 menu
configuration selection). Then as you QSY (or actually, your QSY stops), the
K3 sends a message with the new frequency.
If you are running a logging program, it probably polls the K3 for frequency
often, and the ACOM can "sniff" those responses, and then the K3 Auto Info
isn't as necessary.
Good advice. I have no experience with these amps, but I do have a
SteppIR controller that functions as Dick describes. I used it with
Commander, the rig control program that is part of the DXLog suite, and
with N1MM. I found that I had to use the computer to set the K3's
frequency.
I no longer use that connection, because I switch the SteppIR between
two radios for SO2R.
73, Jim K9YC
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