[Dx4win] DX4WIN and IC-PW1

[Mike Mellinger WA0SXV]

I use the PW-1, DX4WIN, and an IC756 PRO at two different locations.
Ignore Icom's advice and ignore DX4WIN's advice.

1.  Set the CI-V speed on the 756 (or PRO or whatever) to 9600.
"Automatic" is almost certainly a problem.

2.  Set the 756-whatever to TRANSCEIVE.

3.  Do the setup procedure on the PW-1 so that it will track with the
transceiver.  Use the default CI-V settings on the PW-1.

4.  Setup DX4WIN to 9600 baud and the correct 756-whatever CI-V address.

5.  Plug the 756/PW-1 combination into the computer.

6.  Enjoy

I have been using this combination for more than two years.  The only
problem is that occasionally the PW-1 and DX4WIN will interrogate the
transceiver at the same time and you'll get some relay chatter on the
PW-1.  I have never noticed any sensitivity regarding which of the three
devices is turned on first.

I am absolutely convinced that the "AUTOMATIC" speed setting on the
various CI-V interfaces (computer and 756) is a problem.  Also note that
while 19.2kb might seem attractive for the CI-V speed, many of the older
CI-V interface designs use large bypass capacitors on the RS232 side and
may not perform reliably at 19.2kb.  In fact, some of those with .01 uf
bypasses on the CI-V and RS232 lines won't even work reliably at 9600
baud!

73,
Mike WA0SXV