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10-60 instead of 0-60

 
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cravej



Joined: 22 Mar 2008
Posts: 2

PostPosted: Sat Mar 22, 2008 12:25 pm    Post subject: 10-60 instead of 0-60 Reply with quote

I keep making time slips from short 0 - 60 runs, but it shows a minimum speed of 2mph even though I was stopped. Any idea what I'm doing wrong?

-jeff
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Ed
Site Admin


Joined: 27 May 2006
Posts: 280
Location: Seattle, WA

PostPosted: Sun Mar 30, 2008 8:45 am    Post subject: Reply with quote

Are you in a boat? If so, add "GPS Jerk" to your list of sensors, and then the acceleration run will begin where the boat starts accelerating. It will work for a car, too, but usually the car isn't drifting or rolling along when you launch.

If not, it might be GPS drift - but 2 MPH is unusual. You can email us some sample data files for investigation to see if there is anything obvious.
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Ed Lansinger
MaxQData, LLC
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cravej



Joined: 22 Mar 2008
Posts: 2

PostPosted: Mon Mar 31, 2008 5:09 am    Post subject: Reply with quote

It was in a car, but even when the car is sitting still, the MPH reading fluctuates slightly. It usually sees 6-10 satellites.

btw, I used it at my first autocross on saturday and it worked great. I overlayed a run from a better driver and found a spot where I was overdriving the car, which wasn't obvious to me. I think this will be very helpful this season.
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