Written and complied
by KB5RYO (Scott)
Using Visual Basic 5
Disclaimer
misuse or improper use or this program or
interface.
The program and interface information enclosed
is provided as is. It has been tested and found to
work as claimed on the author's system.
Author
KB5RYO
Scott Billingsley
1909 Fairview Rd.
Camden, AR 71701
(870) 837-1377
The Program
Crossband Repeat is a Windows based program
to control
crossband repeat functions using a parallel port
on a computer.
The minimal requirements to run
the program are :
- Pentium or higher computer
- 32 meg or higher ram
- hard disk drive
- one printer port
- 16 color monitor
- Windows 95B or higher (ie. 32 bit)
- Sound card
Simplex uses the following pins on the printer port:
| Pin | Des. | Use |
| 2 | IO1 | PTT output rig a |
| 3 | IO2 | PTT output rig b |
| 11 | Busy | COR input rig a |
| 13 | Select | COR input rig b |
| 16&17 | Ground |
Crossband uses Anjan Rakshit's VBIO.DLL which is included in
VBIO23.zip...It should be unzipped and vbio.dll placed in
windows system directory..Hook the PTT line from rig a to
pin 2 and the COR from rig a to pin 11...Hook the PTT line
from rig b to pin 3 and the COR to pin 13...Hook the audio
out from rig a to the mic of rig b and the audio out from
rig b to the mic of rig a...... Don't forget to match the
impedance of the speaker to the mic.....When rig a hears a
signal it keys rig b....When rig b hears a signal it keys
rig a....
Here is a screen shot of the output screen.
For a simple controller schematic..Click here..
If this sounds like something you are looking for you can
download it here...CROSS.ZIP
If you find it useful or have a suggestion you can send me
an EMAIL.
Thanks...Scott (KB5RYO)
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