Don, I have a DS-3100ASR that I intend to put on the air soon. If I had the disk option, I might be tempted to put up a mailbox on RTTY, just for old times sake!! Nice old rigs. I need to thoroughly clean the keyboard contacts on mine, but otherwise works fine. I plan use with an ST-6000 or the ST-8000 I recently traded for, if I can resurrect it, hi. 73, Don, WB5HAK