[OZAPRS] Gps Unit

[Craig Turner]

Ross,

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.
Hopefully.

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.

Regards
Craig
VK1HCT
--
http://www.craigturner.id.au

vk3fce
> 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
>  VK3FCE
>  Councillor/Treasurer Amateur Radio Victoria
>  WIA Assessor 3-009                     mailto:vk3fce at internode.on.net
>
> _______________________________________________
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> Ozaprs at aprs.net.au
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>

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