For old SLOW DOS machines get a copy of RTTY by WF1B here: http://www.rttyinfo.com/index.htm It's primarily a contest program but it's capable of quite a bit including running with an ST8000. Don't try this with a modern fast computer, ain't gonna work. Find an old 50-100Mhz motherboard with real serial ports and dedicate it to RTTY. Ron k0idt