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    Re: Deviation plot
    From: Chuck Taylor
    Date: 2002 Feb 5, 08:15 US/PACIFIC

    > on 2/4/02 12:47 PM, Chuck Taylor at ctaylor{at}PREMIER1.NET wrote:
    >
    > > The documentation for my Garmin Etrex Mariner GPS defines the following data
    > > items:
    ..
    > > Heading - Your moving direction.
    
    And John LeRoy replied:
    
    > Unfortunately the guy who wrote the manual is wrong.
    >
    > Actually your moving direction is track, sometime called course made good
    > (CMG.) The GPS can't possibly know what your heading is ...
    
    Point well taken. That reinforces the point that it is important to be sure that
    you know what the GPS means when it says "Heading" (or anything else), because
    what it means by "Heading" might not be what you think that word should mean.
    
    Chuck Taylor
    Seascape GB32-2
    
    
    

       
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