WELCOME TO RTTY DE WM2U
RTTY
Ahh! tis the beautiful sound of Rtty :)
Please print this article and use it as a hand out at Club talks and lectures


This is the most popular Digital Mode on HF. One reason for this is that it requires no handshaking with another station and a multi station round robin QSO can be enjoyed.

It is a very interesting mode, one that once you start you will be a permanent convert. I use the Kantronics KAM, although other manufacturers including MFJ make fine TNC's.  The new computer sound card versions are really fantastic. The following chart is a list of currently available sound card software programs.

Home URL Software Writer Detailed Tutorial

TrueTTY

by Sergei, UA9OSV

TrueTTY

RCKRTTY

by Walter, DL4RCK


MMTTY

by Makoto, JE3HHT


Blaster TeLetype

by Rob, ZL2AKM


TERMPSA

by Tom, HB9JNX


MIXW

by Nick, UT2UZ


Although, I believe, sound card versions will soon replace the 'normal' tnc decoding, there are still many tnc users out there. You can use a basic terminal program similar to Pacterm to operate Rtty through the KAM, it is a lot easier and enjoyable to use a program like Hostmaster , a dos based program from Kantronics or KaWin which is Windows based software.

These 'smart' programs make the TNC operate in it's Host Mode. What this actually does is strip the TNC of it's smarts and allows the computer to be the brains and control all operations. This paves the way for some very clever and innovative software.

The Terminal programs mentioned above are a prime example. This software switches the TNC into Host Mode and reverts it back to Terminal Mode when the program is closed. This leaves the TNC ready for other Software programs such as APRS which uses the TNC in Terminal Mode. If you think you are too slow a typist to operate Rtty well think again! These programs all allow buffering of information such that pre-typed messages can be transmitted with the push of one key. Logging, spooling message and Printing are just a few of the many features.

To get you going fast, check out...

WM2U's Tip List.
 
  • Always use Lower Sideband otherwise your signal will be 'inverted'
  • Set the TNC 'Mark' to 2125Hz and the 'Space' to 2295Hz

  • The Standard 'SHIFT' is 170Hz
  • Set the 'Speed' to 45 Baud (60 words/min)
  • Use Hardware Handshaking between the KAM and the Computer.

Some KAM Command Sets for Rtty

AUTOCR 0 AUTOLF ON AUTOSTRT OFF
BKONDEL ON CD SOFTWARE CRADD OFF
DIDDLE ON ECHO ON FILTER OFF
FSKINV OFF INVERT OFF LFSUP OFF
LOWTONES OFF MARK 2125Hz RBAUD 45
SHIFT 170 SPACE 2295Hz USOS ON
XFLOW OFF XMITECHO ON

Contesting in Rtty is almost a religion. One must for any Rtty'er is to Subscribe to the RTTY reflector. Here you can get all the help you will ever need on Rtty especially Contesting.

For questions on this mailto:owner-wf1b-rtty@wf1b.com

The world standard for Rtty Contest Software was written by Ray Ortgiesen, WF1B. This program watches the incoming Rtty signals and will automatically recognise a callsign, Dupe check it. A mouse click will fire up the Transmitter, send the Contest exchange information and enter the contest data in the log area. Another mouse click will log the contact and send out a new QRZ. There are so many features to this program that it would not justify it if I tried to cover it here. I hope the script above gives you a taste of what is available in contest software. My suggestion is for you to contact WF1B at wf1b@wf1b.com.
Enjoy! de Ernie WM2U