Repeater Controller
for the PC
Written and complied
by KB5RYO (Scott)
Using Borland C++ ver. 3.0
Disclaimer
Not responsible for property damage due tomisuse 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
The Idea
This program started as an idea to use the surplus XT,
I wrote the first draft of this program in QuickBasic
C++ also allowed me to do things with the program
The program is compiled using the native 8086
Writing this program has already made me think of
The Program
As you can see the program was written to run on nearly
Repeater takes two command line arguments. These must
Repeater.exe takes two command line arguments. They
The arguments are entered with a single space between
Repeater.exe uses the following pins on the comport:
The screen shows the state of all lines and the time
If this sounds like something you are looking for you can
If you find it useful or have a suggestion you can send me
Check back for time to time as I may be updating the program.
10/17/2000..Due to interest, I am writing a version using the
Scott Billingsley
1909 Fairview Rd.
Camden, AR 71701
(870) 837-1377
286 and 386 computers. These machines are found at nearly
every ham show and surplus markets for prices starting at
$10.00 and going up. With the price of a good repeater
controller going for more than $100.00, I though there
should be a better way.
and found that the computer will do the job quiet nicely.
The problem was in the way QB handles AND and OR
statements. On rare occasions it would switch the PTT
line and the ID line. This would cause real problems with
the PA relays in older machines not to mention a lot of
complaints for users..hi So I re wrote the program in
C++ and it seems to be very well behaved.
that QB wouldn't allow. Such as putting a pulse on the ID
line during the tail time for a courtesy beep. Also putting a
time-of-day clock on the screen, something that slows QB
down. It also makes for smaller .exe file and much faster
response.
instructions. This should allow it to run on any machine
from an XT up. An XT will need a time of day board for
the clock to be accurate.
other features and uses for the base program. I hope you
have as much fun using it as I have writing it.
Repeater.exe is a DOS based program to control
repeater functions using a comport on a computer.
The features of the program are :
The minimal requirements to run the program are :
any computer. Of course all things being equal a fast computer
will give faster response time. But unless you start to talk
at the same time you key an XT would probably be faster than
you..
be present and in order or the program will abort. There are no
key functions or internal setup so booting form a .BAT file
will allow the program to run stand alone and remote. Once
it is running the only way to escape is to turn the computer
off. This was done so an accidental key press would not shut
the program down.
are: comport address in HEX and a call sign for the ID.
The format for the command line is:
Repeater 0x000 call sign
Where 0x000 is the base address of the comport in HEX,
i.e. 0x3f8 for standard com 1.
Don't forget the leading "0x" or the program will abort.
The program does not do address checking, it assumes
the address you enter is the address you want. This allows
you to use any none standard address as an control port.
"callsign" is the call sign you want the computer to send
on the ID line. All letters and numbers are recognized.The
character "/" is used for space. This allows the use of callsign/R
format to identify it as a repeater.
them. Extra spaces or no spaces will cause the program to
abort.
9pin 25pin Des. Use
1 8 DCD Tone encode input
4 20 DTR ID output
5 7 Ground
7 4 RTS PTT output
8 5 CTS COR input
of all timers.
download it here...
an EMAIL.
The current version is 111199.
I'm also going to be working on a cross band controller program.
parallel port...Please check back from time to time....
Thanks...Scott (KB5RYO)
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