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    From: Willem Piccer
    Date: 2005 Sep 10, 19:13 +0200
    I was just re-reading the discussion on the problems Asbjorn had and I wonder if the whole problem is not caused by the gps position used.
    Especially because he states that the observation height is always less than the calculated height.
    I have the feeling that the chart datum chosen plays a role
     
    Willem Piccer
       
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