Why stop there, Leigh? With the use of QRZ.com and weather.com to independently determine name, QTH, and weather conditions, you could encode many QSOs into a pair of callsigns plus one byte.
73, Dave, AA6YQ --- In digitalradio@yahoogroups.com, "Leigh L Klotz, Jr." <[EMAIL PROTECTED]> wrote: > > Here's a modest proposal: compress most of the QSO the way the > moonbounce modes do, by knowing what is expected at that point and > expressing it in a few bits. For PSK, we could just standardize on > macro names for a few things and the two modems can negotiate about > whether to expand them on TX or RX. > > Instead of sending "Your RST is 599" when the macro is RST the TX could > just send "^RST" and the RX modem can expand this into "Your RST is > 599." And if you send "^STATION ^BRAG" the RX program can just print > "OM sent you a big list of his computer equipment." > > This might also eliminate a lot of the uppercase text as well... > > Leigh/WA5ZNU > On Fri, 12 Jan 2007 1:02 pm, Rein Couperus wrote: > > > >> -----Ursprüngliche Nachricht----- > >> Von: digitalradio@yahoogroups.com > >> Gesendet: 12.01.07 17:09:44 > >> An: digitalradio@yahoogroups.com > >> Betreff: RE: [digitalradio] Re: Pactor versus Olivia > > > > > >> By the way, I have often wondered why the B2F binary compression > >> system > >> used with the Winlink 2000 system has never been used for nearly a 2:1 > >> compression for improved throughput. This could be applied to any > >> system, including keyboarding. > >> > >> 73, > >> > >> Rick, KV9U > >> > >> > > > > Unfortunately this won't work. BZ2 compression is based on 'redundancy' > > in a message. There is hardly any redundancy in short messages as used > > in k-to-k. > > > > The only way you can do that is by using context-based compression, > > like the 'context based huffman' compression in pskmail, which reaches > > compression factors of 1 ... 50 : 1. > > > > Rein PA0R > > > > (by the way, it is open source). > > > > -- > > http://pa0r.blogspirit.com > > > > > > > > Announce your digital presence via our DX Cluster > > telnet://cluster.dynalias.org > > > > Our other groups: > > > > http://groups.yahoo.com/group/dxlist/ > > http://groups.yahoo.com/group/themixwgroup > > http://groups.yahoo.com/group/contesting > > http://groups.yahoo.com/group/wnyar > > http://groups.yahoo.com/group/Omnibus97 > > > > > > Yahoo! Groups Links > > > > > > > > http://docs.yahoo.com/info/terms/ >