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1992-09-17
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DAHDIT.EXE
A Code Practice Program
Version 4.00, September 7, 1992
By K. Scott Johnson
WHAT THE HELL IS IT?
DAHDIT is a very simple, very small, and very fast program for Morse
code practice. There's nothing fancy about it, but it's designed for
ease of use minimal complexity. The frequency of the audio tone and the
sending speed are both adjustable.
HOW DO I USE IT?
To start DAHDIT, just type DAHDIT from the command line. The program
will load, and you'll be shown a prompt like this one:
[DAHDIT Version 4.00, compiled 09/17/1992]
Copyright (C) 1992 by K. Scott Johnson.
Enter your first name or callsign>
The program wants your callsign for use in sending drills. Just
enter it and press <ENTER>, which will take you to the main menu.
The menu looks like this:
[DAHDIT V4.00] Operator : KD4DCY Speed : 7.5 WPM
Available Functions:
<S> Change <S>peed.
<F> Change tone <F>requency
<R> Generate <R>andom code groups.
<L> Generate code a <L>ine at a time.
<C> Generate and show code a <C>haracter at a time.
<G> Generate an automatic CQ message.
<Q> <Q>uit.
Most of the options are self-explanatory, but just to be safe, here's
what each of them does.
<S> changes the program's sending speed. The speed can be varied
between 1 and 60 words per minute.
<F> changes the frequency of the tone, with which DAHDIT sends its
Morse characters. Any audio frequency can be specified, between
20 and 20,000 Hertz.
<R> generates random five-character code groups for practice. You'll
be asked how many groups you'd like sent, and sending will begin
as soon as you press <ENTER>. As the code is sent, the character
being sent will be displayed.
<L> allows you to send a sentence, phrase, or other one-line text.
You'll be prompted for the text, and sending will begin when you
press <ENTER>.
<C> allows you to generate and display visually individual Morse code
characters. As you press a key, you hear the code and at the same
time see the dots and dashes on the screen. This is useful for
those who are still learning characters.
<G> is really just for fun. It generates a complete CQ (general call
to anyone) using your callsign.
<Q> terminates the program.
REVISION HISTORY
Version Date Description
------- -------- --------------------------------------------------
1.00 11/??/85 First version. Written in Microsoft MBASIC under
CP/M V2.2 for the Kaypro II computer. Name was
MORSER.COM.
2.00 06/04/86 Converted to IBM Microsoft BASIC for the IBM-PC.
No functionality added. Renamed MORSEII.COM.
3.00 ??/??/89 Converted to Turbo Pascal V2.00. Name changed
to MORSEIII.COM.
4.00 09/17/92 Recompiled with Turbo Pascal V6.00. Fixed a few
pesky bugs. Released as freeware. Renamed to
DAHDIT.EXE because I was running out of 'I' room.
WHO'S RESPONSIBLE FOR THIS OUTRAGE?
DAHDIT was written by K. Scott Johnson, and is copyrighted material. It
is released as freeware. This means that you owe the author nothing in
exchange for the use of the program. You may distribute it freely by
any means so long as the author's name and copyright notice remain
intact, and so long as this documentation is distributed with each copy.
If you have any comments or suggestions on how to improve this program,
I'd love to hear from you. I can be contacted at any of these addresses:
Scott Johnson
4205 Long Key Lane #1526
Winter Park, FL 32792
(407) 679-3997
e-mail: ksj7i@virginia.edu
bbs-ksj@jwt.UUCP
BBS: The Freeware Hall Of Fame (Rey Barry, SYSOP)
(804) 293-4710 (USR DS, 2400-14.4K bps)