[GreenKeys] Dovetron Connectivity and Free Offer

William Bytheway [email protected]
Fri, 27 Feb 2004 19:46:49 -0800


Now that the Dovetrons are reaching all of us in measurable numbers, it
would be neat if we could hear some success stories on how they are working
"on-the-air".  Most of the units are Tempest with BNC connectors on the
back, compatible with RS-232 voltage levels.

Here is my idea:

What we need now is a very simple hardware interface (HW) that allows us to
connect the Dovetron to a PC (RS232) and a 60ma current-loop driver for a
teletype machine.  The simplest design only uses three-legged transistors
(EBC) and a single sided PC board.

RTTYArt software was originally designed to transfer paper tapes to an ASCII
file using a TD and TU capable of interfacing to a PC via RS232.  It had a
limited graphic display capability customized to this purpose.  It also was
capable of transmitting and receiving data via a TU with a PC interface.
RTTYArt was not intended to be used as a terminal program, but it could be
modified.

The free offer:

I will be willing to offer my RTTYArt MS Visual Studio 6.0 C++ source code
free to those wishing to develop it into a full-blown RTTY terminal
application capable of driving both a PC and a 60ma current-loop BAUDOT
teletype machine (HW interface required).  Source code would be released
under GNU GPL (i.e. free with restrictions).  Properly implemented, Heavy
Metal and other capabilities could also be incorporated into the product
(and vice-versa).

Comments? Check out http://www.rtty.com/development/software/index.html

73,
Bill Bytheway
K7TTY
http://www.rtty.com/bytheway