Raymarine LIGHTHOUSE 4 - Target of Interest (TOI); Oneshot TOI Decay Times

21.9T
argetOfInterest(TOI)
AIS,Radar,DSCandInteltargetscanbedesignatedasTOIs.Onceatargetis
designatedasaTOI,STEDSmessagingisusedtobroadcasttheTOItoall
vesselsinrangeortosendtheTOItoanindividualMMSInumber.TOIscan
alsobereceivedoverSTEDSmessaging.
Important:
R
ecipientMFDsmusthavethesameSTEDSpassphraseinstalledasthe
sender’sMFD.
T OIscanbeassignedas‘OneShot’TOIsorasrecurringTOIs.OneShotTOIs
aresentonceandareautomaticallycancelledafteraspecifieddecayperiod.
RecurringTOIsarerepeateduntilcancelledattheselectedtransmissionrate.
TOIscreatedfromIntertargetsorDSCtargetsarealwaysassignedas
OneShotTOIs.
TOIiconsaredisplayedintheChartappandRadarapp.Differenticonsare
usedtodifferentiatebetweensentandreceivedTOIs.
SentrecurringTOIicon
ArecurringTOIisrepresentedonthesender’sMFDusinga
redtriangleiconwith2redringsaroundit.
RecurringTOIswillbetrackeduntilcancelled.
SentOneShotTOIicon
AOneShotTOIisrepresentedonthesender’sMFDusinga
redtriangleiconwith2reddashedringsaroundit.
OneShotTOIswillbetrackeduntilthedecayperiodhas
elapsed.See:p.313—OneShotTOIdecaytimes
ReceivedTOIicon
ATOIthathasbeenreceivedfromanothervesselis
representedontherecipient’sMFDusingaredtriangle
icon.
WhenaTOImessageisreceivedanotificationisdisplayed
onscreen.Theincomingmessageissavedinthe
[Messages]app..
ATOIreceivedfromanothervesselcannotbeforwarded
ontoothervessels.
ReceivedTOIswillbetrackeduntilcancelled.
IfaR
adartargetorAIStargetthataTOIisbasedonbecomeslostthenthe
TOIwillalsobecomelost.
OneShotTOIdecaytimes
TOIsdesignatedasOneShotaretemporaryandaresubjecttoadelayperiod
beforerevertingtotheiroriginaltargetstates(i.e.:AIStarget,Radartarget,
DSCtargetorInteltarget).
•T1Initialdelay—TheOneShotTOIiconisusedtorepresentOneShotTOIs
untilaninitialdelayperiodhasexpired.
•T2Seconddelay—AftertheinitialdelayperiodhasexpiredtheTOIwill
reverttousingitsoriginaltargeticonbutmaintaintheReddashedrings
aroundtheicon.AfteraseconddelayperiodexpirestheReddashed
circlesareremovedandthetargetrevertstousingitsoriginaltargeticon.
Firstresponder
313