1.PresstheCancelsoftkey.
Awarningisdisplayedtoinformtheuserthattheyareabout
tosenda‘Distresscancelcall’.
2.PresstheSendsoftkey.
The‘Distresscancelcall’issent.
3.PresstheOKsoftkey.
4.Makeabroadcasttoallstationsgivingyourvessel’sname,
callsignandMMSInumberandcancelthefalsedistressalert
Example:“All,Stations,AllStations,AllStations.Thisis
<NAME>,<CALLSIGN>,<MMSIID>,<POSITION>.Cancel
mydistressalertof<DATE>,<TIME>,<NAME>,<CALL
SIGN>”.
5.Repeatthebroadcastdescribedinstep4.
6.PressEndtorevertbacktonormaloperation.
Receivingadistresscall
ItisexpectedthatonlyaCoastRadioStation(CRS)will
acknowledgeDSCdistresscallsandwillactasthecoordinator
fortherescueoperation.
Whenadistresscallisreceivedanalarmissoundedatfull
volumeandtheLCDdisplaysinformationpagesrelatingtothe
distress.Thisincludes:
•MMSIorNameofvessel(Nameofdistressedvesselisonly
displayedifitisacontactsavedinthephonebook).
•Natureofdistress.
•Latitudeandlongitudeofdistressedvessel.
•Timeofdistresscall.
1.Sequencewhenautochannelchangeisturnedon.
2.Sequencewhenautochannelchangeisturnedoff.
IftheAutochannelchangefunctionisenabled10secondsafter
receiptofadistresscalltheradiowillautomaticallyre-tuneto
channel16.Otherwisetheuserispromptedtochangechannel
manually.
Thedetailsofthedistresscallarerecordedinthedistresslog
andtheenvelopeiconwillashon-screentoletyouknowa
messagehasbeenreceived.WhenconnectedtoaRaymarine
multifunctiondisplaythepositiondatafromadistresscallcan
alsobedisplayinthechartapplication.
WhenthereceiveddistresscallisacknowledgedbytheCRSor
anotherstationthentheradiowillresumenormaloperation.
Acceptingadistresscall
Toacceptthedistresscallfollowthestepsbelow.
Withanactivedistresscalldisplayed.
1.WithAutochannelchangeturnedon–SelectOK.
Thealarmismuted,theenvelopeiconisturnedoffandthe
radiowillswitchtochannel16.
2.WithAutochannelchangeturnedoff–SelectOKtomutethe
alarmandturnofftheenvelopeicon.SelectOKagainto
acceptthechannelchangetochannel16.
Mutingadistresscall
Youcanignoreadistresscallbymutingthealarmandcancelling
thedistresscallscreen.
Withanactivedistresscalldisplayed.
1.PresstheClearbuttontomutethealarm.
2.PresstheClearbuttonagaintocancelthedistresscall
screen.
Theenvelopeiconwillbeturnedoffandnormaloperationis
resumed.
Acknowledgingadistresscall
Distresscallsmustonlybeacknowledgedifthecallcontinues
withoutacknowledgementfromaCRS,youarecloseenough
tothedistressedvesseltobeofassistanceandareprepared
torelaythedistresstoaCRSbyanymeanspossible.ClassD
DSCradiosareforbiddenfromautomaticallyacknowledging
distresscalls.Acknowledgementmustonlybemadebyvoice
messageonchannel16.
Afterreceivingadistresscallthathasgoneunanswered:
1.Switchtochannel16tolistenforthedistressvoicemessage.
2.WaitfortheCRStoacknowledgethecall.
3.Ifthedistresscallisnotacknowledgedbyanotherstation
thenacknowledgethecallasfollows:
MAYDAY
(MMSIofthevesselindistress)
Nameofvesselindistress<repeated3times>
Callsignofthevesselindistress
Thisis<MMSIofyourvessel>,<nameofyourvessel
repeated3times><callsignofyourvessel>
RECEIVEDMAYDAY
4.YouMUSTthennotifytheshoreauthoritiesbyanymeans
possibletorelaythedistresscall.
Manuallyrelayingadistresscall
Adistressrelayshouldonlybesentif:thepersonorvehiclein
distressisunabletotransmitthedistresscallitself,forexample
redaressightedatnightorthepersonorvehicleindistress
isoutofrangeofaCRSandyouhavealreadyacknowledged
thedistressbyvoicemessage.Youcanalsorelayareceived
distressrelayalertmanuallyifitgoesunanswered.
1.Switchtochannel16
2.Slowlyandclearlyspeakthedetailsofthedistress:
MAYDAYRELAY,MAYDAYRELAY,MAYDAYRELA Y
Thisis<MMSIofyourvessel,nameofyourvesselrepeated
3timesandyourcallsign>
ReceivedthefollowingMAYDAYfrom<MMSIofvesselin
distress,nameofvesselindistress,callsignofvesselin
distress>
Messagebegins
Messagereceivedfromvesselindistressordetailsof
thedistress
Messageends
OVER
Distressrelayssentbyotherstations
WhenaCoastStationoranothervessel,hasreceived,and
acknowledgedaDSCdistressalertitmaytransmitadistress
alertrelaytoothervesselsintheimmediatearea.
Distressrelayssentfromotherstationscanbereceivedbythe
radio.
Theradiocannotre-sendadistressrelayautomatically.If
requiredyoucanrelayadistressrelaymessagemanually.
Ifadistressrelayissentspecicallytotheradiothenitcanbe
acknowledged,otherwiseacknowledgementisnotrequired.
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Ray260