GPS Below Sea Level
Submitted: Sunday, Jan 06, 2008 at 20:43
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Member - Franga (QLD)
I'm looking for a bit of direction here, before I go any further Happy and a Safe New Year to all, now continuing, was driving around today on the coast and went into a new estate to look at all the new houses etc. and noticed a big blue ring around the pointer of my Garmin Quest GPS. Now I thought that was pretty strange because I only see it when it starts up and when its looking for Satellites, when I came back out of the estate it disappeared, I then thought maybe I was below Sea Level.
Any other ideas?
Thanks and Regards
Franga
Reply By: Bonz (Vic) - Sunday, Jan 06, 2008 at 21:54
Sunday, Jan 06, 2008 at 21:54
The blue ring is likely to the the accuracy ring, i.e. 30 m ring around you meaning 30m accuracy. usw
The vertical accuracy on normal GPS's is likely to be anything upo to twice what the horizontal accuracy is.
Also, the GPS uses an approximated "sea level", or a standard circle about the centre of the earth. So you may show
well below sea level in some
places. Thats of course unless you have the barometric sensors etc in the GPS
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