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Re: HS Students Needing Payload Help

There's a group at Stanford headed by professor Bob Twiggs (Director of the
Stanford Satellite Systems Development Laboratory) whose "main focus in
life" is to assist students, from middle school through college, design,
build and launch payloads.  Their projects have included: Opal, Emerald,
Sapphire, Cansats and now Cubesats.  Try the Stanford Satellites homepage at
http://aa.stanford.edu/~ssdl/ for a virtual tour, contact info and other

73 - JC,k0hps@amsat.org

----- Original Message -----
From: Michael McCarty <mmccarty@zianet.com>
To: <amsat-bb@AMSAT.Org>
Sent: Saturday, April 29, 2000 10:52 AM
Subject: [amsat-bb] HS Students Needing Payload Help

> Due to my involvement with high power rocketry, I was contacted
> by a group of high school students in Washington state that are planning
> on doing a rockoon launch in August.  They are still working on the
> details for telemetry equipment to do an APRS downlink.  They have
> the recieve equipment and from what I gather a little help from a local
> ham, but still need advice on the payload, especially with the
> I'm sure there are people on the Amsat list with more experience than
> I have at this.  If anybody would like to lend them a hand, please contact
> them at p_alpha@moonman.com .
> Here's a little of the conversation I've had with them to give you an idea
> of what they are looking for:
>  >>Any information and assistance you
>  >>could offer would very helpful.
>  >>Some vital information
>  >>The 55 mile minimum range is Line of Sight range
>  >>The weight for the payload has been doubled from  350 grams to 700
>  >>grams. Minus the GPS device and flight on board data recorder, the
>  >>weight for the transmitter is approximately 450 to 500 grams, the
>  >>lighter the better.
>  >>Also, having limited knowledge of electronic engineering, I am looking
>  >>for something that requires minimal rewiring of components, but if
>  >>necessary, could obtain help with this if it is needed.
>  >>Chris Trone said:
>  >>As part of a rocketry project I am tasked with obtaining a GPS System
>  >>tracking. The biggest problem thus far has been finding something small
>  >>enough to fit yet high powered enough to have sufficient transmition
>  >>strength. The ID of the rocket is 54mm and a max weight of 350grams .
>  >>far I have been able to find a capable GPS reciever. I am currently
>  >>at using a Motarola M12 as the reciever. I need to find a way to
transmit a
>  >>signal from the M12 on the rocket back to the ground.
>  >>The signal range needs to be at least 55 miles and meet the weight/size
>  >>recomendations mentioned above. Does anyone have any ideas
>  >>for me?
> ----
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