Raymarine E90W - Radar Overview; HD and Superhd Digital Radar Scan Speed

9.1Radaroverview
Radarisusedtoprovideinformationthatcanhelpyoutotrack
targetsandmeasuredistancesandbearings.
RadioDetectionAndRanging(RADAR)isusedatseatodetectthe
presenceofobjects(knownas‘targets’)atadistance,andifthey
aremoving,detecttheirspeed.
Radarworksbytransmittingradiopulses,thendetectingreections
ofthesepulses(echoes)fromobjectsintheareaanddisplayingthe
reectionsastargetsonyourdisplay.
Untilyouarefamiliarwithinterpretingtheradardisplay,every
opportunityshouldbetakentocomparetheradarscreenpatterns
withvisualtargets,suchasotherboats,buoysandcoastal
structures.Youshouldpractiseharborandcoastalnavigationduring
daylighthoursandinclearweatherconditions.
HDandSuperHDdigitalradar
Yourmultifunctiondisplaycanbeusedwithdigitalradarscanners.
HDandSuperHDDigitalradarscannersprovidearangeof
advantages,makingiteasiertodiscernobjectsaroundyourvessel.
HDandSuperHDDigitalradarscannersprovide:
•Improvedtargetdetection.
•Full-colorimage.
•DualRangeoperation.
•SuperHDoption.Thiseffectivelyincreasesthetransmitterpower
byafactorofatleast2,andreducesthebeamwidthbyasimilar
amount.
Note:YoumustconnectaSuperHDradarscannerinorderto
usetheSuperHDoption.
9.2HDandSuperHDdigitalradarscan
speed
Ifyourscannersupportsmultiplespeeds,youcanadjustthescan
speed.
RadarscanspeedissetupusingtheDigitalScannerSetupMenu,
accessiblefromtheRadarSetupmenu.Whenthesystemdetectsa
scannerthatiscapableofoperatingatboth24RPMand48RPM,
twooptionsareprovidedforscannerspeed:
•24RPM
•Auto
Ifyourdigitalradarscanneronlyoperatesat24RPM,thescanner
speedoptionisdisabled.Otherwise,youmustselecttheAuto
option,whichwillautomaticallyswitchbetweenthe24RPMand48
RPMscanspeeds,asappropriate.
Selectingradarscannerspeed
Thespeedoptionrequiresa48RPMcompatibleHDorSHDdigital
radarscanner.
Selectyourradarscannerspeedfromwithintheradarapplication.
1.PresstheMENUbutton.
2.SelectRadarSetup>ScannerSpeedmenuoptions.
3.SelecttheScannerSpeedmenuitemandtheappropriatespeed
setting:
•Auto
•24RPM
TheAutooptionautomaticallyselectstheappropriatespeed
foryourradarrange.48RPMisusedatradarrangesofup
to3nm.Itprovidesanincreasedrefreshrate,whichisuseful
athighspeedorinareaswhereyouhavelargenumbersof
116E-SeriesWidescreenUserreference