[aprssig] Lost Goat - APRS Beacon?

Wes Johnston, AI4PX wes at ai4px.com
Mon Oct 18 13:45:16 EDT 2010

Grerry Creger did cows in space a number of years ago.  I'd like to see
transmitter and antenna on collar... not perpendicular, but antenna shooting
off the side, perhaps wrapping around a little.

Not sure if byonics trackers allow for power control of the GPS, but argent
data's do.  I got a GPS from argent at dayton that is 20mm square and it got
a fix cold in less than 30 seconds.  It would be ideal to program a tracker
to wake it up once every 4-5 minutes and get a fix.  I was able to mount it
under the seat of my motorcycle and it works great.  enclosure and
waterproofing up to you.


God help those who do not help themselves.

On Mon, Oct 18, 2010 at 13:21, Steve_wG0AT <qrp.wg0at at gmail.com> wrote:

> I just picked up a tinytracker at Pacificon from Byonics and thinking of
> putting it on my dominant packgoat Rooster.  The reason is the goats usually
> never let me out of the sight since I'm their alpha goat. However on our
> last big adventure we were hurriedly down climbing a 12k-ft peak and we
> somehow got separated! I spent over an hour frantically looking for them as
> we were in the path of pending forest fire. Fortunately I was able to track
> them (hoof prints) and literally ran them down! Not an easy task above 10k
> feet ...the running part that is!
> http://www.youtube.com/watch?v=PDXMiaaqcpE
> If I'd had only a little knowledge of the where abouts I could have cut
> that time to just minutes to locate them! LAT/LON and direction and/or speed
> would have been a huge aid while in my panic search mode!
> So I'm now building up a TT3 w/GPS and now looking for a an old HT to put a
> 1w APRS beacon on my goats. I can easily mount it on their saddle w/19" whip
> and maybe even use a solarpanel to charge the battery. Kinda a fun project.
> I carry a Garmin GPS60CSx and had a VX8(I can't locate it it at the
> moment??) but considering getting a D7 instead. Seems I could use these
> tools to get a quick fix on the goats should we get separated again?
> Any considerations this APRS application? Like on path programing or should
> I use a non standard freq to reduce APRS traffic? Comments/Suggestions
> welcomed!
> 73, Steve ...wGØAT/R&P
> http://www.youtube.com/goathiker
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