Lighthouse a65 - Page 300

Ifatargetislost,eitherbecausetheMARPAsoftware
haslostcontactwithit,orbecauseithasmoved
outofrange,anaudiblealarmissoundedandan
on-screenwarningappears.Theon-screensymbol
willchangetothetargetlostsymbol.Acknowledging
thewarningwillsilencethealarmandremovethe
on-screenwarningandthetargetlostsymbol.
EffectiverangeforMARPAtargets
MARPAtargetacquisitionisonlyavailableatradar
rangescalesofupto12nm,althoughtracking
continuesatallranges.
Ifyouchangetoasmallerrangescale,targetsmay
bebeyondtherangeofyourradarscannerand
willbelost.Insuchcases,anon-screenwarning
indicatesthatthetargetisoff-screen.
MARPAcontextmenu
TheMARPAfunctionincludesacontextmenuwhich
providespositionaldataandmenuitems.
Thecontextmenuprovidesthefollowingtarget
information:
•CPA
•TCPA
•COG
•SOG
Thecontextmenualsoprovidethefollowingmenu
items:
•Canceltarget
•CPAGraphic
•MARPAData
•Slewthermalcamera(Onlyavailablewhen
thermalcameraisconnectedandoperating.)
Accessingthecontextmenu
Youcanaccessthecontextmenubyfollowingthe
stepsbelow.
1.Non-touchscreenandHybridT ouchdisplays:
i.Selectingalocation,objectortargeton-screen
andpressingtheOkbutton.
2.HybridTouchandTouchonlydisplays:
i.Selectinganobjectortargeton-screen.
ii.Selectingandholdingonalocationon-screen.
Conguringtargetoptions
Fromtheradarapplication:
1.SelectMenu.
2.SelectTargets.
3.SelectTargetOptions.
4.SelectVectorLength.
5.Selectanappropriatetimeperiod.
Thedistancethatyourvesseltravelsinthetime
periodyouspecifyheredeterminesthelength
ofthevectorlines.
6.SelectTargetHistory.
7.Selectanappropriatetimeperiod.
Thetarget'spreviouspositionwillbeplottedon
theradardisplayasatargeticonwithlighter
shadingthantheactualtarget.
Note:MARPAandAISfunctionsshareSafeZone
andVectorLengthsettings.
SettinguptheSafeZoneRing
YoucanadjusttheSafeZoneRingradius,thetime
toSafeZoneandchoosewhetherAIStargetstrigger
theSafeZonealarmfromtheSafeZoneRingSet-up
menu.
TheSafeZoneSet-upmenucanbeaccessedas
follows:
•FromtheRadarapplication:Menu>Zones>
SafeZoneSet-up.
•FromtheChartapplicationwithonlytheAIS
overlayenabled:Menu>AISOptions>Safe
Zone>SafeZoneSet-up.
•FromtheChartapplicationwithonlytheRadar
overlayenabled:Menu>RadarOptions>Safe
Zone>SafeZoneSet-up.
•FromtheChartapplicationwiththeAISandRadar
overlaysenabled:Menu>Radar&AISOptions
>SafeZone>SafeZoneSet-up.
FromtheSafeZoneSet-upmenu:
1.SelectSafeZoneRadius.
i.Selecttherequiredradiusforthesafezone.
2.SelectTimetoSafeZone.
i.Selecttherequiredtimeperiod.
3.SelectAISAlarmsothatOnishighlighted.
SelectingAISAlarmwillswitchthedangerous
targetalarmbetweenOnandOff.
UsingMARPA
AcquiringaMARPAtargettotrack
Fromtheradarapplication:
1.Selectthetargettobeacquired.
TheMARPAcontextmenuisdisplayed.
2.SelectAcquireTarget.
The“targetbeingacquired”symbolisdisplayed.If
thetargetispresentforseveralscans,theradar
locks-ontothetarget,andthesymbolchangesto
“safetarget”status.
CancellingaMARPAtargetusingtheMARPA
contextmenu
Fromtheradarapplication:
1.Selecttherelevanttarget.
TheMARPAcontextmenuisdisplayed.
2.SelectCancelTargetorCancelAllTargets.
300aSeries/cSeries/eSeries