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Raymarine E70293 - Page 92

Raymarine E70293
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representanerrorofapproximately15m.Please
rememberthatevenaverylowHDOPgureis
NOguaranteethatyourreceiverisprovidingan
accurateposition.Ifindoubt,checkthedisplayed
vesselpositionintheChartapplicationagainst
youractualproximitytoaknownchartedobject.
EstimatedHorizontalPositionError(EHPE)
EHPEisameasureoftheestimatederrorof
apositionxinthehorizontalplane.Thevalue
displayedindicatesthatyourpositioniswithina
circleradiusofthestatedsize50%ofthetime.
Fixstatusindicatestheactualmodethe
receiverisreporting:
FixSatellitexhasbeenacquired.
NoFixNosatellitexcanbeacquired.
DFixAdifferentialbeaconxhasbeen
acquired.
SDFixAdifferentialsatellitexhasbeen
acquired.
PositionDisplaysthelatitudeandlongitude
positionofyourreceiver.
Date/TimeDisplaysthecurrentdateandtime
generatedbythepositionxinUTCformat.
ModeIdentieswetherthereceiverisworking
indifferentialmodeornon-differentialmode.
DatumThereceiver'sdatumsettingaffects
theaccuracyofthevesselpositioninformation
displayedintheChartapplication.Inorderforyour
receiverandMFDtocorrelateaccuratelywithyour
papercharts,theymustbeusingthesamedatum.
COG/SOGFilter
TheCOG/SOGlteraveragesthevelocityvectorsto
compensatefortheoscillatingmotionofthevessel,
givingaclearerindicationofthevessel’scourseand
speed.
Thelterdoesnotaffectthecalculationofyour
receiversreportedposition.Thevelocityvectors
calculatedfromthesignalprovideaninstantaneous
measureofspeedanddirectionofthereceiver.The
COGandSOGcanthereforseemerraticunder
certainconditions.Forexample,whenavesselis
movingslowlythroughroughseas,thereceiver
movesfromsidetosideaswellasinthedirection
oftravel.
Slowmovingvessels,orvesselssailinginrough
seaswillbenetfromahighsetting,whereasa
powerboatthatcanquicklychangespeedand
directionwillbenetfromalowsetting.
SonarSet-upmenu
TheSonarSet-upmenuprovidesthefollowing
options.
Depth
Offset:
Offsetrepresents
thedepthofthe
transducerrelativeto:
Waterline=0.0ft
andabove.
Keel=0.1ftand
below.
–9.8to+9.8feet
orequivalentunits
SonarReset
Restoreallsettings
onthesonarmodule
tofactorydefault.
Whenperforminga
SonarReset,itis
normaltobrieylose
connectionwiththe
sonarmodule.
Yes
No
Tools&Settings
99

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