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1997-02-01
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CWI - a CW transmitting program
written by Harry Bump KM3D
PO Box 392
Richland PA 17087
Internet address: harry.bump@hamdata.leba.net
This program is written and provided as 'freeware' - no donation or
payment is required. Any donations received will be used to improve
both the CW module and the contest logging programs I've been working
on for the past few years. The program may NOT BE SOLD and when
distributed must include the following (and only the following) three
files.
CWI.EXE - the program file
CW.DAT - the paramaters/memory contents data file
CW.DOC - this file
Setup is simple and the hardware requirement is minimal. The program
works by switching the DTR line (pin 20) on the serial port at COM1
or COM2. The hardware that I built was offered as a 'Hint' in Feb
1990 QST by John Swancara, WA6LOD, and utilizes an optocoupler.
Simple interfaces that use a resistor and transistor (as shown with
other software packages) will also work. The DTR line toggles
between +14v and -14v as it is controlled. The program is set to key
the interface with a positive voltage present on the DTR pin. If you
select 'INVERTED CW' from the operating menu the program will key the
interface with a negative voltage on the DTR pin. That might be
useful if you already have a hardware interface for another program
that keys on the negative voltage. If you get it setup backwards you
will hear carrier on key up and have a silent key down - does anybody
want to try copying 'inside-out' CW?
The program will have to be calibrated for the speed of your
computer. It will not take long but you must have a stopwatch or
sweep second hand. The program will run you through a brief test at
12wpm and again at 20wpm and then ask if you wish to save the
parameters.
Most of the program can explain itself - the (+/-) keys control the
speed and there's a very healthy buffer. The memories are accessed
with two keypresses - HEY this is only a prototype! Anytime you save
the parameters the memory contents are also saved. Also - memories
can be nested - that is - the (`/F1) can be saved as part of F2
memory and then will be sent as part of F2s message.
This program is (hopefully) destined to end up as part of each of the
contest logging programs I've written. By then the memory access
might be single keystrokes and keyboard CW will be a hotkey option
from the logging screen. Those logging programs are the PA1200
(Pennsylvania Party) - MI1200 (Michigan Party) - and FD1200
(Fieldday) and are available on the ARRL BBS in Newington CT
(203-666-0578) and the N3GTY BBS in Lebanon PA (717-272-9701 or
717-270-5607).
I hope you use and enjoy the program and maybe send some feedback my
way - thats' the only way I'll find out what I've done good (and
bad!).
73 - Harry - KM3D