Logger32's WinKeyer debug against the K3NG that will not answer OpsLog is a
capture of the exchange working, on the same keyer and the same port:
Sent: 13 13 13 00 04 55
Rcvd: 55 (72 ms)
Sent: 00 02 Host open
Rcvd: 23 (WK2 v23)
That is the sequence I already send. The difference is the grouping: Logger32
puts the three nulls and the echo probe in ONE write, and we split them with a
50 ms pause and a buffer purge in between. On a keyer that reboots when the
port opens, that pause is a window for it to come up mid-sequence and swallow
half of it — and there was nothing to wait for, since a null produces no reply.
The handshake bytes are now logged unconditionally, not behind the diagnostic
option. "No WinKeyer answered" cannot be told apart from a wrong port, a wrong
baud rate, a keyer still booting, or another program holding the line. The
bytes can, and it is four lines per connect attempt.