[OSM-talk] My Experiments with Mapping

[Kenneth Gonsalves]

On Friday 11 Dec 2009 6:57:27 pm Shalabh wrote:
> cal faces of huge Himalayan rock, 25 metres apart. And my GPS says the
> error is +-53 metres. Where do you suppose it showed me? Somewhere drilled
> into the mountain rock? Perhaps. The error went upto 96 metres and then the
> altimeter lost 100 metres while I was climbing.
> 
you can buy a sparcsystems logger which in ideal conditions is accurate to a 
metre - it has a magnetic antenna with a 3 metre cord which you can stick on 
the roof of your car and a bell push for marking waypoints which you can fix to 
your steering wheel. It costs around 7500

-- 
regards
Kenneth Gonsalves
Senior Project Officer
NRC-FOSS
http://nrcfosshelpline.in/web/