[Loadstone] Altitude display

Shawn Kirkpatrick shawn at odyssey.cm.nu
Fri Jun 15 11:45:18 BST 2007

I don't know why the altitude would be going thrue such a wide range. Maybe 
try adjusting the altitude measurement setting to either mean sea level or 
geoidal separation. Sometimes receivers don't send the geoidal separation 

On Fri, 15 Jun 2007, Hasan Karahasan wrote:

> Hello,
> I know that altitude measurements with GPS are unreliable. When I compare
> the altitude values given within loadstone and in my receiver's maintinance
> tool I see a big difference. While the receiver's tool shows about 90 to 93
> meters constantly for the same point, loadstone flips around between minus
> 100 meters to plus 20 meters. Reguardless of the inacuracy of altitude
> measuring with gps it cannot be that bad as shown in ls. So what's going
> wrong there?
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