[aprssig] Messaging breakout (xastir)

Andrew Rich vk4tec at tech-software.net
Sun Aug 20 01:06:26 CDT 2006

Mate people in this group have never heard of a D7

Andrew Rich
Amateur radio callsign VK4TEC
email: vk4tec at tech-software.net <mailto:vk4tec at tech-software.net>
web: http://www.tech-software.net

-----Original Message-----
From: Bob Bruninga [mailto:bruninga at usna.edu]
Sent: Sunday, 20 August 2006 12:59 PM
To: vk4tec at tech-software.net; TAPR APRS Mailing List
Subject: RE: [aprssig] Messaging breakout (xastir)

> We send check point number, time ,
> and horses going past at that time
> HORSE,3,10:00,1,2,3,4,5
> HORSE,3,10:01,6,7,8,9,10

Assuming down there that just about everyone into APRS
has a D7, then it might be Better to use APRS so that
you can use simple D7's or D700's at the checkpoints
without any fuss with a PC.  Maybe you dont have lots
of D7's or D700's down there, but up here, most people
have them and it sure makes easy entry...

If the format is designed for easy entry... that is,
Here is what I would use for the APRS message format.
1) dont enter TIME wiht a colon.  Takes longer
2) Dont retype HORSE each time
3) For D7 entries just press each D7 key once instead of the actual digit
characters, since digits take 4 key strokes per digit.  The two examples
above when formatted from the TTpad
of the D7 would be entered as:


But on the air would look like this:

d?q   ?q?a?d?g?j
d?q  q?m?p?t?w?q_

But since you are writing softwware to put it into your data base, then the
software can just as easy read the alpha characters and convert them to

Anyway, we always thought that D7 TTpad data entry was the way to go.  And
if you were running APRStt (touchtone) then anyone with any DTMF HT could
enter the same data too, since APRStt would convert it from DTMF to APRS at
the APRStt engine.  This way you get 100% participation and not just those
with the D7.   But APRStt never caught on..

Those at a PC would still enter the the message
like this

just a thought.  Depending on whether y ou have a lot
of D7's for easy data entry...
de Wb4APR, Bob

More information about the aprssig mailing list