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 [email protected], "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: [email protected]
> >> Gesendet: 12.01.07 17:09:44
> >> An: [email protected]
> >> 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
> >
> >
> >
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