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World of Ham Radio 1997
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1997-02-01
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2KB
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68 lines
Program: DDSWIN V1.03 , 29.1.1996
Keywords: Home radio amateurs, external hardware,
DDS chip.
Executable: DDSWIN.EXE + DDSWIN.HLP
Authors: Bernd Hoen, hoen@hhi.de, Berlin
Detlef Rohde, rohde@hhi.de, Berlin
Released: Freeware
Purpose of this program:
This program allows you to control a DDS-chip
(Digital Direct Synthesizer) by your printer port.
This allows you to scan short wave bands, measure
filters and to substitute a local oszillator.
It requires:
- Microsoft Windows Version 3.1 or newer
- A parallel printer port
- External hardware with a DDS chip
(Circuit schematic in file circuit.gif,
Hardware layout from Detlef Rohde)
Installation:
Copy all files into a directory of your choice.
By using the file manager pull the file
DDSWIN.EXE into any program group of your
program manager.
The file "circuit.gif" contains the DDS circuit
schematic, so you can build your own DDS hardware.
Copyright notes etc.
====================
This program is neither shareware nor public domain.
DDSWIN is the Copyright property of Bernd Hoen and Detlef Rohde DL7IY.
You have the right to use this program for non commercial purposes without
further permission. You can copy it and share it as long as you
don't charge any money for it other than the cost for the transfer media,
not exceeding the equivalent of $4.
Any commercial distribution without the
w r i t t e n p e r m i s s i o n
of the authors is strictly prohibited.
If you like this program you should write us to give some feedback.
Enclosing any amount of money at choice to support program development
will be highly appreciated. Send your letter to the address below.
(This is no 'must')
Test it. Ideas to
- Bernd Hoen (hoen@hhi.de), the programmer.
- Detlef Rohde (rohde@hhi.de, packet radio @DB0GR ,DL7IY).
Titiseestrasse 12, D-13469 Berlin, Germany.
May be an improved version will be distributed as shareware.
It could include heterodyning and modulation capabilities.