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    2/11/2019 12:41 am  #1

    ZeeZee
    Expert

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    Registered: 3/30/2016
    Posts: 321

    How does Expedition uses GMM versus Instrument data

    With the update of the GMM in Expedition I was wondering when Exp uses the GMM to calculate magnetic variation and do conversions between (e.g. HDG/HDG Mag,   COG/COG M etc) and when it uses the variation data that comes from the instruments.

     

    2/11/2019 1:21 pm  #2

    Nick
    Moderator

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    Registered: 9/16/2015
    Posts: 2,999

    Re: How does Expedition uses GMM versus Instrument data

    Exp stores everything internally in magnetic. If you decide to show a variable in true, it applies the variation from the WMM to that.
    Exp ignores any variation from the instruments.

     

    2/11/2019 1:25 pm  #3

    ZeeZee
    Expert

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    Registered: 3/30/2016
    Posts: 321

    Re: How does Expedition uses GMM versus Instrument data

    Tnx Nick!

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