Several users have enquired as to what software packages can be used to operate our RTTY Modem in the DSP-599zx. I have tested the following three packages and they work to a greater or lesser degree. The comments that accompany them are from my experiences with them.

This software, by David Rice KC2HO worked the best for me. It is a Dos program that behaves well under Windows 3.x or Windows 95. I was able to run it with a standard RS-232 cable.

This software worked OK on both transmit and receive, but requires the user to modify the standard RS-232 cable.

This software worked OK on receive, but also requires the user to modify the standard RS-232 cable. It did not work on transmit and required some additional circuitry, which is documented in the HamComm user manual

Our preference is CompRTTY II. I was able to get it up and running in minutes flat using a standard RS-232 cable. It multitasks well under Windows 95 though I had to set it up as a full screen application. It also allows the user to monitor a second TNC which they might want to have connected to a DX Cluster node or other VHF Packet function. It has logging and a basic contest mode also. You can contact the author via e-mail (rice.syracuse@mci2000.com)

Oh yes, there is a program for the Commodore 64 called MBA-TOR which also works with our box. If you know of any other software that supports RS-232 demodulated RTTY, let me know and I'll add it to the list.