[Space] APRS trackers

tedward arbzed at gmail.com
Mon Jan 23 11:52:46 PST 2012


Don't forget the venerable OpenTracker+, which will interface with a GPS
receiver of your choice:

http://www.argentdata.com/products/otplus.html

On Sun, Jan 22, 2012 at 4:29 PM, Adam Engelhart <adam at tellumo.net> wrote:

> Ladies and gentlemen--
>
> Kindly find below my research on GPS/APRS trackers for Spacebridge.
>
> I'm afraid I don't have as much information on the parameters we
> need--I know that at a minimum we should have it track above 60k feet.
> (As I understand it, it is required that civilian GPS devices not
> track when traveling over BOTH 999 miles/hour AND 60,000 feet AMSL,
> but that a distressingly large proportion replace that AND with an OR,
> which is yet another part of what makes high-altitude balloonery so
> interesting. *This is not legal advice*, and *I am not your,
> Noisebridge's, or Spacebridge's lawyer*: http://ianyl.net/TINLA.html ;
> http://ianyl.net/ .)
>
> Regardless, I wasn't too sure about the weight or power budgets or of
> what hardware we had on board or available, so I just looked up
> whatever seemed decent. Results follow:
>
> BigRedBee (http://www.bigredbee.com/blgps_2mhp.htm):
>
>                * Proven altitude records:
> http://www.bigredbee.com/kml_gallery.htm
> ; some astonishing stuff at http://californianearspaceproject.com/ as
> well
>                * Includes GPS
>                * Can use entire 2M band, as well as 70 cm band (but latter
> is
> limited to 16 mW, as opposed to 5 W--need some kind of radio guru to
> look at this)
>                * Supports various voltages
>                * $275! But includes radio.
>
> Byonics TinyTrak3 (http://www.byonics.com/tinytrak/)
>
>                * Only $98 including GPS
>                * Former successful use:
> http://www.eoss.org/hardware/k0yuk_aprs.htm .
>                * Needs external radio
>                * Can power GPS (5V)
>
> These two seem to pretty much run the market, although there may be
> something buried out there that I haven't been able to uncover. Once
> again, IANYL/TINLA.
>
> --Adam Engelhart
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