On Thu, 23 Mar 2006 16:46:28 +0000, Bob Towers wrote: >All my data stuff is via software, so I suppose I really ought to <call my RTTY AFSK. The commercial services have been using AFSK "modems" for multi-channel telegraph/data (MUX) for at least the last 40 years that I am familiar with. -- 73 de K2ASP - Phil Kane