On Wed, 30 May 2012 16:13:59 -0700, Darryl Ramm wrote:

Martin that is all nice, but for particular devices here people are
observing altitude errors of 1,000' or so (presumably caused by 2D fixes
being marked incorrectly as valid 3D fixes).

Point. And, a related one: how come there are all these GPS devices out
there (Garmin, I'm looking at you) whose display real-estate is so
precious that they can't devote any of it to flagging up invalid fixes.
At least neither LK8000 nor XCSoar suffers from this problem.

I've never seen anything like the sort of errors you mention, though if
my EW model D is left running on the ground its trace often hops up and
down a few feet. Do we know if any of those mega-deviations spike down to
exactly zero ft?


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martin@ | Martin Gregorie
gregorie. | Essex, UK
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