[OZAPRS] Gps Unit

Craig Turner craig at craigturner.id.au
Thu Jun 22 13:16:01 EST 2006


I am planning a similar project at the moment. A friend is building the
balloon and I am building and designing the payload. We are keeping it
under 2Kg as the CASA requirements for a sub 2KG balloon are quite simple.

I am using a Maxon 2550, an OpenTracker and a Deluo GPS.

The Deluo GPS is about the size of a a matchbox and uses 5 volts. It has a
PS/2 style connector, but it is easy to make up a serial cable for it,
with a voltage regulator inside the DB9 case.

I havn't worked out the power budget yet, but I think I can bring it all
in under 1.5kg. The advantage with the Open Tracker is it sends out
temprature readings, battery voltage etc.

We are using a solar balloon, which uses the sun to heat the envelope, so
at the end of the day it should gracefully descend back down to earth.

The deluo is worth about $70. The other option is to use a Compact Flash
GPS, which I think can easily be wired up to a serial port. I have a
compact flash GPS which has the connector snapped off, and if I can get
that working, then I will use that instead.


> Greetings All,
>      I am after a cheap GPS unit preferably without a screen for use
>      in a proposed balloon launch. Nothing to flash as we might not
>      get it back! Any suggestions or ideas most welcome, will need it
>      fairly soon as balloon launch is planned for November and will
>      have a APRS beacon and either 2m or 70cm voice beacon.
>      The launch will be part of a month long celebration of the 95th
>      birthday of Amateur Radio Victoria (formally WIA Vic
>      Division).
> --
>  Regards,
>  Ross
>  Councillor/Treasurer Amateur Radio Victoria
>  WIA Assessor 3-009                     mailto:vk3fce at internode.on.net
> _______________________________________________
> Ozaprs mailing list
> Ozaprs at aprs.net.au
> http://aprs.net.au/mailman/listinfo/ozaprs

Ozaprs mailing list
Ozaprs at aprs.net.au

More information about the Ozaprs mailing list