•rate-of-turntooslowortoofast
Compasslock
Onceyouaresatisfiedwiththecompassaccuracy
,youcanlockthesettingtopreventthesystem
fromcompletingafurtherautomaticlinearizationinthefuture.
Thisfeatureisparticularlyusefulforvesselsinenvironmentsthatareexposedtostrongmagnetic
disturbancesonaregularbasis(suchasoffshorewindfarmsorverybusyrivers,forexample).In
thesesituationsitmaybedesirabletousetheCompasslockfeaturetodisablethecontinuous
linearizationprocess,asthemagneticinterferencemaybuildaheadingerrorovertime.
Note:Thecompasslockmaybereleasedatanytime ,toallowthecompasscontinualmonitoring
andadaptationtore-commence.Thisisparticularlyusefulifplanningalongvoyage.Theearth’s
magneticfieldwillchangesignificantlyfromonegeographicallocationtoanother,andthe
compasscancontinuallycompensateforthechanges,ensuringyoumaintainaccurateheading
datathroughoutthevoyage.
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