Raymarine A65 - Dual Range Radar Operation

thatthesizeofatargetonscreenisdependentonmanyfactorsand
maynotnecessarilybeproportionaltoitsphysicalsize.Nearby
objectsmayappeartobethesamesizeasdistantlargerobjects.
Note:Colorsstatedaboverefertothedefaultcolorpalette.
Withexperience,theapproximatesizeofdifferentobjectscanbe
determinedbytherelativesizeandbrightnessoftheechoes.
Youshouldbearinmindthatthesizeofeachon-screentargetis
affectedby:
•Thephysicalsizeofthereectingobject.
•Thematerialfromwhichtheobjectismade.Metallicsurfaces
reectsignalsbetterthannon-metallicsurfaces.
•Verticalobjectssuchascliffsreectsignalsbetterthansloping
objectssuchassandbanks.
•Highcoastlinesandmountainouscoastalregionscanbeobserved
atlongerradarranges.Therefore,therstsightoflandmaybea
mountainseveralmilesinlandfromthecoastline.Althoughthe
coastlinemaybemuchnearer,itmaynotappearontheradar
untilthevesselisclosertoshore.
•Sometargets,suchasbuoysandsmallvesselsdifculttodiscern,
becausetheydonotpresentaconsistentreectingsurfaceas
theybobandtossaboutinthewaves.Consequentlytheseechoes
tendtofadeandbrighten,andattimesdisappearmomentarily.
•Buoysandsmallvesselsresembleeachother,butvesselscan
oftenbedistinguishedbytheirmotion.
Note:AGPSreceiverandafastheadingsensorarerequiredfor
MARPAoperation,andtoenableradar/chartoverlay.
Radarcontextmenu
Theradarapplicationincludesacontextmenuwhichprovides
positionaldataandmenuitems.
Thecontextmenuprovidesthefollowingpositionaldataforthe
cursorlocationinrelationtoyourvessel:
•Latitude
•Longitude
•Range
•Bearing
Thecontextmenualsoprovidethefollowingmenuitems:
•AcquireTarget
•PlaceVRM/EBL
•PlaceWaypointAtCursor
•Slewthermalcamera(Onlyavailablewhenthermalcamerais
connectedandoperating.)
Accessingthecontextmenu
Youcanaccessthecontextmenubyfollowingthestepsbelow.
1.NeweSeriesorNewcSeries:
i.Selectingalocation,objectortargeton-screenandpressing
theOkbutton.
2.Touchscreenmultifunctiondisplays:
i.Selectinganobjectortargeton-screen.
ii.Selectingandholdingonalocationon-screen.
13.6Dualrangeradaroperation
TheDualRangeradarfunctionenablesyoutoview2rangesat
thesametimeinseparatewindows.Thefunctionisavailablewith
SuperHDandHDradarscanners.
UsingyourmultifunctiondisplayandanHDorSuperHDradar
scanner,youcanvieweitherashortoralongrangeimagein
separateradarwindows.
ThedefaultsettingisLong,whichprovidesastandardscanner
range.
Limitations
•DualRangeoperationisnotavailableifMARPAtargetsareactive.
•YoucannotacquireMARPAtargetsifDualRangeisenabled.
•Radar/chartsyncandradar/chartoverlayaretemporarilydisabled
whenDualRangeisenabled.
Dualrangeradarcompatibility
TherangecoveredbytheshortDualRangeoptiondependsonthe
radarscanneryouareusing,andthesoftwareversionitisusing.
Scanner
Dualrange
mode
*Rangecovered
bysoftware
versions1.xx
to2.xx
Rangecovered
bysoftware
versions3.xx
onwards
4KwHDOpen
Array
Long(1)1/8nmto72nm1/8nmto72nm
Short(2)1/8nmto3nm1/8nmto72nm
4KwSuperHD
OpenArray
Long(1)1/8nmto72nm1/8nmto72nm
Short(2)1/8nmto3nm1/8nmto72nm
12KwHDOpen
Array
Long(1)n/a1/8nmto72nm
Short(2)n/a1/8nmto72nm
12KwSuperHD
OpenArray
Long(1)1/8nmto72nm1/8nmto72nm
Short(2)1/8nmto3nm1/8nmto72nm
HDRadome
Long(1)1/8nmto48nm1/8nmto48nm
Short(2)1/8nmto48nm1/8nmto48nm
Limitationsofsoftwareversion1.xxand2.xx
•Thevaluefortheshortrangesettingmustbelessthanorequalto
thelongrangesetting.
•WithDualRangeOnandashortrangewindowactiveExpansion
controlshallbedisabledintheEnhanceEchoesmenu.
UsingDualRangewithSuperHDscanners
DualrangeradaroperationwithSuperHDscanners.
WhenusingtheshortDualRangeoption,aSuperHDscanner
operatesinHDmodeonly.WhenusingthelongDualRangeoption,
aSuperHDradaroperatesinSuperHDmode.
Usingradar
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