Raymarine A series - Page 148

Note:GLONASSsatellitesareonlyavailable
whenconnectedtoacompatiblereceiversuchas
thebuilt-inreceiverofana9xora12xMFD.
Satellitestatusarea
TheSatellitestatusareadisplaysthefollowing
informationabouteachsatellite:
•Type—Identieswhichconstellationthesatellite
belongsto.
•ID—Displaysthesatellitesidenticationnumber.
•CNO(Carrier-to-noiseratio)—Displaysthesignal
strengthofeachsatelliteshownintheSkyview:
–Grey=searchingforsatellite
–Green=satelliteinuse
–Orange=trackingsatellite
•AzimuthandElevation—Providestheangleof
elevationandazimuthbetweenthelocationofthe
receiverandthesatellite.
Positionandxinformation
Thefollowingpositionalandxinformationis
provided:
•HorizontalDilutionofPrecision(HDOP)
—HDOPisameasureofsatellitenavigation
accuracy,calculatedfromanumberoffactors
includingsatellitegeometry,systemerrorsin
thedatatransmissionandsystemerrorsinthe
receiver.Ahigherguresigniesagreater
positionalerror.Atypicalreceiverhasanaccuracy
ofbetween5and15m.Asanexample,assuming
areceivererrorof5m,anHDOPof2would
representanerrorofapproximately15m.Please
rememberthatevenaverylowHDOPgureis
NOguaranteethatyourreceiverisprovidingan
accurateposition.Ifindoubt,checkthedisplayed
vesselpositionintheChartapplicationagainst
youractualproximitytoaknownchartedobject.
•EstimatedHorizontalPositionError(EHPE)
—EHPEisameasureoftheestimatederrorof
apositionxinthehorizontalplane.Thevalue
displayedindicatesthatyourpositioniswithina
circleradiusofthestatedsize50%ofthetime.
•Fixstatus—indicatestheactualmodethe
receiverisreporting:
–Fix—Satellitexhasbeenacquired.
–NoFix—Nosatellitexcanbeacquired.
–DFix—Adifferentialbeaconxhasbeen
acquired.
–SDFix—Adifferentialsatellitexhasbeen
acquired.
•Position—Displaysthelatitudeandlongitude
positionofyourreceiver.
•Date/Time—Displaysthecurrentdateandtime
generatedbythepositionxinUTCformat.
•Mode—Identieswetherthereceiverisworking
indifferentialmodeornon-differentialmode.
•Datum—Thereceiver'sdatumsettingaffects
theaccuracyofthevesselpositioninformation
displayedintheChartapplication.Inorderforyour
receiverandMFDtocorrelateaccuratelywithyour
papercharts,theymustbeusingthesamedatum.
Multipledatasources(MDS)overview
Installationsthatincludemultipleinstancesofdata
sourcescancausedataconicts.Anexampleisan
installationfeaturingmorethanonesourceofGPS
data.
MDSenablesyoutomanageconictsinvolvingthe
followingtypesofdata:
•GPSPosition.
•Heading.
•Depth.
•Speed.
•Wind.
Typicallythisexerciseiscompletedaspartofthe
initialinstallation,orwhennewequipmentisadded.
IfthisexerciseisNOTcompletedthesystemwill
automaticallyattempttoresolvedataconicts.
However,thismayresultinthesystemchoosinga
sourceofdatathatyoudonotwanttouse.
IfMDSisavailablethesystemcanlisttheavailable
datasourcesandallowyoutoselectyourpreferred
datasource.ForMDStobeavailableallproducts
inthesystemthatusethedatasourceslisted
abovemustbeMDS-compliant.Thesystemcan
listanyproductsthatareNOTcompliant.Itmay
benecessarytoupgradethesoftwareforthese
non-compliantproductstomakethemcompliant.
VisittheRaymarinewebsite(www.raymarine.com)
toobtainthelatestsoftwareforyourproducts.If
MDS-compliantsoftwareisnotavailableandyoudo
NOTwantthesystemtoautomaticallyattemptto
resolvedataconicts,anynon-compliantproduct(s)
canberemovedorreplacedtoensuretheentire
systemisMDS-compliant.
148aSeries/cSeries/eSeries