Got me. I always thought digital simply meant two stages, on and off. CW is digital, as is RTTY. Its the scheme of the on/off or mark/space that gives us the "mode" of digital transmissions. Analogue is a smooth (albeit sometimes very rapid) transition between the bandwidth limits. Almost all our digital modes are simply keying a tone which rides along on SSB signals - the same as voice does. I put my rig in SSB to transmit and receive PSK and the other digital modes I run. If they do not modulate the signal beyond those parameters, what is the difference if we run voice, digital voice, SSTV , PSK, etc? It is still a SSB signal with some type of modulation. I think we are getting much too involved in trying to outguess ourselves here. CW is different, as we are simply turning the carrier on and off, and even it is an analogue carrier. "Data" has thrown a real kink in amateur radio thinking, and I think we think too much about it.
Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB all DX 2-6 years each. moderator [EMAIL PROTECTED] Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB all DX 2-6 years each. moderator [EMAIL PROTECTED] ----- Original Message ----- From: "DuBose Walt Civ AETC CONS/LGCA" <[EMAIL PROTECTED]> To: <digitalradio@yahoogroups.com> Sent: Friday, November 17, 2006 11:18 AM Subject: RE: [digitalradio] NEWEST RULES.... > Perhaps now is the time to ask the question...what is the difference between analog and digital? Both are data. > >