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October 25th 2020 - 10:17
Main Menu -> Abbreviations -> SOG


Speed Over Ground
Used as the primary reference in most GPS receivers and Chart Plotters to indicate velocity. Since GPS estimates speed as a change in position over time the Speed over Ground is the only speed that can be calculated. IE: moving through a Current the SOG is based on speed over the bottom not the relative speed of the vessel through the water.
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