Hello,

I am programming yet another utility to control KX3 and I encountered a
strange (inconsistent) behavior.

In digital mode contest traffic it is necessary to switch to RX immediately
after exchange has been sent. I learned that the way to do this is to
send KYW<text
to send>;RX; to the serial interface.  The RX; after KY will ensure
immediate switch to receive and the W in KYW will ensure that the RX; will
be interpreted after text sending is finished, i.e. will not interrupt
ongoing transmission.

What surprised me is that when I send something like:
KYWCQ CQ CQ DE OK4RM;KYW DE OK4RM OK4RM PSE K;RX;
i.e. split a long text in shorter chunks.  In such case I believe all the
texts are sent (I have to verify that yet, though) but the effect of the
final RX; disappears.

Is this a mistake in my program workflow or could that be a firmware
peculiarity? (I hesitate to call it a bug as everything else seems to work
perfectly.)

I think there will be no problem for a contest but if I wanted to use the
same pattern for longer exchanges in casual digi QSOs that would make
things a little bit more complicated.

Thanks for any advice,

Jindra
OK4RM
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