[aprssig] APRS and RF data modules
Jason Winningham
jdw at eng.uah.edu
Thu Apr 28 09:49:11 EDT 2005
On Apr 28, 2005, at 8:12 AM, J. Lance Cotton wrote:
> Why not just get a PocketTracker?
> http://byonics.com/pockettracker/
Because I need a DF locator beacon, not an APRS tracker (yeah, I sort
of changed gears in the middle of that last message). We usually fly a
DF beacon on our balloons in case the APRS tracker fails. We've been
flying a backup tracker on an alternate frequency, so the locator
beacon has become less important. I don't know if we'll keep flying
with the 2 tracker model and leave off the beacon, or use all 3
transmitters (primary APRS, secondary APRS, DF beacon), or maybe even
go back to the one tracker/one DF beacon once we get a reliable design
simple enough for students to configure officially designated as the
primary tracker (I want to use opentracker for this, but I'm not in
charge).
If I did need the absolute smallest APRS tracker and didn't want to
build my own transmitter, I would probably go with the pockettracker.
I vastly prefer the opentracker over the tinytrack, because it's open
source (and I'm a bit prejudiced against the PIC because I can't get a
free C compiler).
If I have a choice between an open product and a proprietary one the
open one gets my money, all other things being equal.
-Jason
kg4wsv
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