K7TTY Software Library
Software specifically written for RTTY and the BAUDOT code by K7TTY

RTTYArt Terminal Program and Editor	The application runs on a Window95 or later OS and uses standard RS-232 ports. It will capture BAUDOT or ASCII and save it to a file, as well as display the picture or text on the screen with overstrike capability. It will send an ASCII file to the teletype machine with the appropriate ASCII to BAUDOT conversion at most common Baud rates. It also can function as a standard terminal. Instructions- [PDF] [HTML]. Pictures - [rttyart-main window] [rttyart-about] [rttyart-capturedata] [rttyart-jennings] [rttyart-sendfile] [rttyart-settings]
PSK31 with BAUDOT	Introduction of PSK31 version 2.11a with Baudot Support that allows you to use your mechanical teletype machine as a printer for received PSK31 data.
RTTYApp Broadcast Scheduler and Editor	Here is a demonstration version of the WC2XPF RTTY Broadcast Scheduler and Editor. This project was developed using Microsoft Visual C++ to produce an integrated software package to support a Special Test Authorization (STA) approved by the Federal Communications Commission (FCC) for a commercial Teletype Broadcast station. Instructions- [PDF] [HTML]. Pictures - [scheduler-main window] [scheduler-about] [scheduler-editor]
Telnet Server	This product provides a TCP/IP Telnet interface to the RTTYApp program and allows an external user to Telnet into the broadcast and chat with the broadcast jockey as well as monitor the broadcast material. It supports multiple sockets and interfaces with the Terminal program. Source code is included. Picture - [Telnet Server]
WinST-6 Terminal Program	This terminal product provides the user the ability to communicate with an external RS-232-to-RTTY Terminal Unit and provides receive/transmit capabilities using the F1/F2 keys. It also communicates with the RTTYApp Broadcast application if it is running. The user can control baud rates with the Baud_Shim program. This version interfaced with a Hal Communications ST-6 that used DTR for transmit and RTS for CWID. Source code is included. Picture - [WinST-6 Terminal Program]
Baud_Shim	Most RS-232 terminal applications written for Windows 3.x and 9.x allow the user to operate on a set of fixed BAUDOT rates. This product was designed as a test tool to demostrate a teletype machine's ability to process a variety of Baud rates. It operates under most RS-232 terminal applications and covertly sneaks in a user-defined set of parameters. Picture - [baud-shim]
udc-232.zip	UDC-232 was developed by William Bytheway K7TTY as a simple terminal interface to the AEA UDC-232 and PK-232. It's not fancy, uses the ESC and PF keys to for some short cut functionality. The source is written in Turbo Pascal for Windows version 7.0 by Borland and was recently updated from it's predecessor which supported the PK-232, Borland Pascal 6.0 and the Sanyo 555 computer.

K7TTY Source Code

Software that has been developed by hams over the years and is being provided AS-IS on this WEB site for those of you that want to start developing your own software, but needed some help with getting started. As always, if you use this software or any part of this software in one of your own projects, please give the authors and other contributors referenced credit.

rtty.zip rtty.c	RTTY.ZIP was developed by William Bytheway K7TTY as a method of controlling a HAL Communications ST-6 teletype Terminal Unit (TU) which was modified for RS-232. It is a very simple terminal program that controls DTR for transmit/receive and RTS for morse code ID. It has a morse code generator built in. It is written by K7TTY in Borland C/C++ version 4.0 and also sports a serial communitations driver that control up to eight COM ports IRQ 1-15 all at the same time. To make this work for your computer, you will have to find the parameter for setting the COM port and rebuild the application. An unzipped version (rtty.c) is provided so that you can preview it on screen.
rs-232.zip rs-232.c	RS-232 contains code written by Bill Bytheway K7TTY that allows the developer to write a communications interface for controlling up to 8 COM ports at the same time using IRQ 1-15. It is written for reuse and is the basis for many communications applications written by the author. An unzipped version (rs-232.c) is provided so that you can preview it on-screen. Use this as the engine for writing your own code for communications interfaces.

NOTE: You will find that most of the code will not work without some modification for your specific applications, as most of it was developed as "Engineering Hobby Code", i.e. software with little documentation and support. Like many parts scrap boxes, you should find something useful for your development.

Useful Software Tools

Spectrogram

Freeware dual channel audio spectrum analyzer for Windows 95/98/NT which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card. You download a local copy (version 4.2.11) from this site as well. This application is extremely useful for tuning in RTTY signals and calibrating AFSK generators and input filters.

George Hutchison
W7TTY
(Webmaster)

WWW.RTTY.COM

William Bytheway
K7TTY
(Co-Webmaster)