Raymarine A65 - System Checks

6.9Systemchecks
GPSCheck
GPSselection
Youcanuseaninternal(ifavailable)orexternalGPSreceiver.
•YourmultifunctiondisplaymayfeatureaninternalGPSreceiver.
•YoucanalsoconnectanexternalGPSreceiverusingSeaTalk
ng
orNMEA0183.
•WhereappropriateusetheSystemSettingsmenutoenableor
disabletheinternalGPSreceiver.
EnablingordisablingtheinternalGPS
IfyourmultifunctiondisplayfeaturesaninternalGPSthenthiscan
beenabledanddisabledbyfollowingthestepsbelow.
Withthehomescreendisplayed:
1.SelectSet-Up.
2.SelectSystemSettings.
3.ToenabletheinternalGPS,selectInternalGPSsothatOnis
highlighted.
4.TodisabletheinternalGPS,selectInternalGPSsothatOff
ishighlighted.
CheckingGPSoperation
YoucancheckthattheGPSisfunctioningcorrectlyusingthechart
application.
1.SelecttheChartpage.
2.Checkthescreen.
Withthechartdisplayed,youshouldsee:
Yourboatposition(indicatesaGPSx).Yourcurrentposition
isrepresentedbyaboatsymbolorsolidcircle.Yourpositionis
alsodisplayedinthedatabarunderVESPOS.
Asolidcircleonthechartindicatesthatneitherheadingnor
CourseOverGround(COG)dataisavailable.
Note:Raymarinerecommendsthatyoucheckthedisplayed
vesselpositioninthechartapplicationagainstyouractual
proximitytoaknownchartedobject.GPSreceiverstypicallyhave
anaccuracyofbetween5and15m.
Note:AGPSStatusscreenisavailablewithintheSetupmenuof
Raymarinemultifunctiondisplays.Thisprovidessatellitesignal
strengthandotherrelevantinformation.
GPSsetup
TheGPSsetupoptionsenableyoutocongureaconnectedGPS
receiver.
TheGlobalPositioningSystem(GPS)isusedtopositionyourvessel
onthechart.YoucansetupyourGPSreceiverandcheckitsstatus
fromtheGPSStatusoptionintheSystemSettingsmenu.For
eachtrackedsatellite,thescreenprovidesthefollowinginformation:
•Satellitenumber.
•Signalstrengthbar.
•Status.
•Azimuthangle.
•Elevationangle.
•Asky-viewtoshowthepositionoftrackedsatellites.
D
12 20 4-1
61
4
2
3
5
ItemDescription
1
Skyview—avisualrepresentationofthepositionoftracked
satellites.
2
Satellitestatus—displaysthesignalstrengthandstatusof
eachsatelliteidentiedintheskyviewdiagramontheleftofthe
screen.Thecoloredbarshavethefollowingmeanings:
•Grey=searchingforsatellite.
•Green=satelliteinuse.
•Orange=trackingsatellite.
3
HorizontalDilutionofPosition(HDOP)—ameasureof
GPSaccuracy,calculatedfromanumberoffactorsincluding
satellitegeometry,systemerrorsinthedatatransmissionand
systemerrorsintheGPSreceiver.Ahigherguresigniesa
greaterpositionalerror.AtypicalGPSreceiverhasanaccuracy
ofbetween5and15m.Asanexample,assumingaGPS
receivererrorof5m,anHDOPof2wouldrepresentanerror
ofapproximately15m.Pleaserememberthatevenavery
lowHDOPgureisNOguaranteethatyourGPSreceiveris
providinganaccurateposition.Ifindoubt,checkthedisplayed
vesselpositioninthechartapplicationagainstyouractual
proximitytoaknownchartedobject.
4
Fixstatus—indicatestheactualmodetheGPSreceiveris
reporting(NoFix,Fix,DFixorSDFix).
5
Mode—themodecurrentlyselectedbytheGPSreceiver.
6
Datum—TheGPSreceiver'sdatumsettingaffectsthe
accuracyofthevesselpositioninformationdisplayedinthechart
application.InorderforyourGPSreceiverandmultifunction
displaytocorrelateaccuratelywithyourpapercharts,theymust
beusingthesamedatum.
TheaccuracyoftheGPSreceiverdependsontheparameters
detailedabove,especiallytheazimuthandelevationangleswhich
areusedintriangulationtocalculateyourposition.
Radarcheck
Warning:Radarscannersafety
Beforerotatingtheradarscanner,ensureallpersonnel
areclear.
Warning:Radartransmissionsafety
Theradarscannertransmitselectromagneticenergy.
Ensureallpersonnelareclearofthescannerwhen
theradaristransmitting.
Checkingtheradar
FromtheRadarapplication:
1.SelectMenu.
2.SelectPowersothatOnishighlighted.
TheRadarscannerwillnowinitializeinstandbymode.This
processwilltakeapproximately70seconds.
Gettingstarted
71