Chuck, No problem. It may just as easily been something I missed. On the SEDSAT Wiki page they describe the "sliding window" technique used to stream packets. As I recall this was used in the Kermit protocol for PC to PC file transfers. Something similar, modified for half-duplex channels, would be an improvement to our RF digital communications. I liked the point about not needing a timer to monitor timeouts with the sliding window. AX.25 has a plethora of timers that make it a hassle to implement. Rud Merriam K5RUD ARES AEC Montgomery County, TX http://TheHamNetwork.net <http://thehamnetwork.net/>
-----Original Message----- From: Chuck Mayfield - AA5J [mailto:[EMAIL PROTECTED] Sent: Saturday, August 09, 2008 7:12 AM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] AX.25 vs Something New Rud, I said It was in the Design <http://wiki.seds.org/index.php/SEDSAT-2_Communications_Design_Notes> Notes par. 2.2.1. However, I now see that I got off the track and that page applies to Design Notes for the SEDSAT-2. Maybe the par. on fx.25 and the list of possible tnc's are not connected together. If that is the case, then Sorry for the confusion. Chuck
