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Forum: RIBs & ribbing

29 August 2017, 18:52

Replies: 26

Whats wrong GPS or physics?

Views: 2,241

Posted By simonl

On the motorway?

On the motorway?

Forum: RIBs & ribbing

29 August 2017, 17:04

Replies: 26

Whats wrong GPS or physics?

Views: 2,241

Posted By simonl

The maths looks fine. Given the updated info that...

The maths looks fine. Given the updated info that both GPS units were providing the same reading, I share your confusion over the recorded speed!
Over what distance did you record this?

A certain...

Forum: RIBs & ribbing

29 August 2017, 09:44

Replies: 26

Whats wrong GPS or physics?

Views: 2,241

Posted By simonl

I thought most consumer GPS receivers, although...

I thought most consumer GPS receivers, although incorporating some phase change techniques, were biased within the filter towards position based speed measurement?

Forum: RIBs & ribbing

29 August 2017, 08:51

Replies: 26

Whats wrong GPS or physics?

Views: 2,241

Posted By simonl

Fine to do your sums down to 0.1 mph, but when...

Fine to do your sums down to 0.1 mph, but when did you last get your prop calibrated?

Forum: RIBs & ribbing

29 August 2017, 08:47

Replies: 26

Whats wrong GPS or physics?

Views: 2,241

Posted By simonl

Stating the obvious, but people sometime forget...

Stating the obvious, but people sometime forget the theory..
Speed = distance/time. The maths will be correct.
Time = Pretty accurate in a GPS. Once locked to satellite, 100% perfect. And I mean...

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