On 14 April 2010 08:06, Aun Yngve Johnsen wrote:
> to EPE of 0.1, while a simple car navigation with "snap to road"
> function can be more than happy with HDOP of 2 (which would be totally
> rejected by my contractors).
To save people looking it up, HDOP is approx HDOP*6=m, HDOP of 2 = 12m
_
Augmentation of GPS can be done in various ways depending on the type
of unit you have, wether you have access to paid subscription
augmentation or only free systems, and where you are.
A smaller handheld unit generally have lesser accuracy compared with a
larger unit.
Higher latitude (60 d
On 14 April 2010 06:47, Phil! Gold wrote:
> What I'm curious about is how well the Pre's accuracy compares to other
> GPS units. I've read that GPS units with WAAS (for I am in the US) can
> get results with less than one meter of imprecision, but in a survey of
> GPS unit accuracy online I only
Hopefully this isn't too off-topic for the list. If it is, sorry.
I use a Palm Pre for recording GPS traces. Once it's warmed up, it
normally reports an accuracy of 3 meters, which seems to fit reasonably
with what I've seen when overlaying my traces on the Yahoo WMS tiles
(although sometimes tr
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