[GreenKeys] Looking for TTY Signal Source

[Don Cunningam]

Jim

Thanks for that info.  I have been looking for at least the manual for 
Glen Wellman's program, RTTY 1.2G that I have used since 1986!! I can 
remember how to do the basic things, but some of the details have 
escaped my old mind.  This is an excellent RTTY program for "glass RTTY" 
as you said.  I keep one old DOS desktop and a "gaming" computer I found 
several years ago on Ebay that has Windows 95 and a partition for MSDOS 
latest version 6.xx.  I can make DOS 3.5" diskettes of this program or 
HAL's DSRTTY, which is another fine DOS RTTY program.  I never thought 
it transferred to Window, even the early versions very well, but if 
anyone has a DOS system running and would like some of this, I would 
share.  When I can find someone to "chat", not contest, I still get on 
RTTY with one of these systems and my old HAL RTTY converters.

I guess when I find a model 28 with my name on it again, I'll have a 
test set, HI.
73,
Don, WB5HAK

On 7/14/2021 9:45 PM, Jim Haynes wrote:
> Well what I use is kinda funky, but...
>
> There is an old IBM PC program out on the web named RTTY12G.  I have 
> an old laptop computer with a COM port and a floppy drive (can also 
> take a CDROM drive)  So I format a floppy to include the system files 
> and that gives me a bare-bones DOS system.  I put the RTTY12G binary 
> on the floppy and run it and it turns the PC into a "glass Baudot 
> Teletype" with RS-232 COM port.  Then these days you can use a solid 
> state relay IC or a
> suitable transistor to key the 60MA loop with the signal from the COM
> port.  Solid state relay is preferable since it is opto-isolated.
> I've also written the program to a CD ROM but the disadvantage to that
> is that you have to write to the ROM at the same time any files you
> might want to send.  Either way I've got a highly portable test set
> for my machines.
>
> Jim W6JVE
>
>     ---
>
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