CLUB 100 Library - 415/939-1246 BBS, 937-5039 NEWSLETTER, 932-8856 VOICE Documentation for RTTY3.100, a program that allows reception of radio teletype messages using the Model 100 and a shortwave radio. Handles 60, 67, 75 and 100 WPM. This is a modification of the program RTTY.100 in DL0. It is designed for the SWL, hence is receive only. All commands are entered using function keys as follows: F1 - Rolls the baud rate from 60 thru 100 wpm F2 - Toggles unshift-on-space (indicated by "UOS" or "uos" in label line). Handy for copying WX traffic. F5 - Turns label line on and off. F6 - Forces a "FIGS" shift and a LF/CR F7 - Turns on printer echo F8 - Returns user to menu. See RTTY.DOC in DL0 for more details Enhancements in RTTY3: - function key labels (toggled on and off by F5) - rolling display of speed - Unshift on space option - Bell character deleted - Removal of transmit code Suggestions for use: I have had good results copying RTTY using the 100 directly connected to an MFJ 1225 RTTY/CW interface, using a Sony ICF-2010 receiver. The interface costs about $60, and will work with any stable shortwave radio. I've copied VOA news wire relays from Kavasa, Greece, hams and WX stations all up and down the East Coast. The progam is pretty straight forward and easy to modify for any specialized purposes. The only really tricky parts are the UART set up for the odd-ball speed used by RTTY and the Baudot to ASCII translation...wish I could take credit for those parts! Anybody want to add AMTOR, TOR, FEC and ARQ? W? Bob Scott 73125,1437