[roc-chat] Re: GPS unit speed and altitude limitations
- From: Greg Clark <bigredbee@xxxxxxxxx>
- To: roc-chat@xxxxxxxxxxxxx
- Date: Tue, 27 Dec 2011 08:55:07 -0800
Notice that they say high speed AND high altitude. Many manufacturers
(including the SiRF III pictured) implement an OR function. I believe (but
can not confirm) that the velocity component is 'speed over ground' so
most rockets will never into this limit unless they're heading into orbit.
I have yet to see a data set from a rocket that exceeded both of these
limits, so can't confirm what really happens.
The balloon guys have compiled a pretty comprehensive list that show which
work, and which do not above 60k. http://www.arhab.org
-- Greg
On Tue, Dec 27, 2011 at 8:11 AM, Chris Spurgeon <chris@xxxxxxxxxxxxxxxxx>wrote:
> The Make Magazine blog has a little discussion of the hows and whys that
> GPS units cut off at high speed and/or high velocity.
>
>
> http://blog.makezine.com/archive/2011/07/gps-units-disable-themselves-if-they-go-faster-than-1200-mph.html
>
>
> Chris Spurgeon
> chris@xxxxxxxxxxxxxxxxx
> twitter.com/chrisspurgeon
>
>
>
>
>
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