Hi Wouter,

Hmmm, well, I doubt that the 4G limit comes from any hardware problem
because it is listed under the "dynamics" specs, along with max
velocity and max altitude. These factors have to do with the filters
the GPS processor uses to obtain a fix from the satellite signals.

Also, 4G seems like a very low acceleration to damage a crystal. I
have used crystals in rockets before at well over 20G and they seemed
to work fine during and after flight.

Sean


On Mon, Jan 5, 2009 at 7:57 AM, Wouter van Ooijen <wouter@voti.nl> wrote:
>> I have a project where I am considering using a small GPS module to
>> determine the maximum altitude of a model rocket.
>> Any thoughts?
>
> If there is a crystal on the GPS that might be the G-limiting factor,
> and if it malfunctions I don't think it will recover. The physical
> construction might also be a problem (maybe not with the modern, very
> small, GPS modules).
>
> --
>
> Wouter van Ooijen
>
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