NorthStar Navigation 710 VHF Receiving a Distress Call Distress, RCV Distress Relay

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6-2 Receiving a Distress Call (DISTRESS!)

RCV: DISTRESS

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FLOODING

ESC –> EXIT

RCV: DISTRESS

10:34 UTC

82º50.003'N

27º45.543'W

1.An alert sounds when a distress call (DISTRESS!) is received. Press any key to cancel the alert. You do not need to send an acknowledgement.

2.The radio automatically selects CH16 and displays the details of the distress call on the screen. Press PTT to establish voice contact.

The details are displayed over two screens that alternate every 1.5 seconds; the ﬁrst screen shows the user MMSID and nature of the emergency (if speciﬁed), the second screen shows the time and the location (if speciﬁed). If the location and time are not speciﬁed, these are replaced with sequences of 9s and 8s respectively.

The VHF710 is capable of receiving enhanced LL position data if the vessel transmitting the Distress Call is sending this. This provides the position of the distressed vessel to within 20 m (60ft).

6-3 Distress Acknowledgement (distress ack) or Relay

RCV: DISTRESS

RELAY

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ESC –> EXIT

An alert sounds when a Distress Relay (DISTRESS RELAY) is received. Press any key to cancel the alert.

Try to make voice contact with the calling vessel. Maintain a listening watch on CH16 and standby to lend assistance.

For a Distress Acknowledgement (DISTRESS ACK) sent from the Coast Guard, your radio automatically cancels Distress Mode transmissions and CH16 appears. Press PTT to establish voice contact with the Coast Guard.

The Coast Guard is the only agency allowed to send a Distress Acknowledgement (DISTRESS ACK).

33	Northtstar Explorer VHF Series: 710US, 710EU Operation and Installation Manual

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Contents Explorer 710 VHF Important Safety Information Contents RF Emissions Notice Features General InformationCustomizing your Northstar VHF Radio How to Display and Navigate Menus How to Enter Alphanumeric DataLCD Symbols and Meanings WX ALT HI LOBusy PRIBasic Operation and Key Functions VOL/PWRSQL UIC 3CHDIM ScanESC ENTCALL/MENU MenuRadio Menu Options Menu Edit an Entry Maintain Your Buddy List Buddy ListSet Distance Sensitivity Local or Distance Sensitivity LOCAL/DISTSet Local Sensitivity Backlighting Backlight and Contrast ContrastSet the Contrast Level Set the Backlighting LevelGPS Data and Time GPS/DATA Manually Enter Position and UTC Time ManualGPS/DATA Manual Setting Local Time Time OffsetTime Offset Time Display Options Time Display Position Display Options LL displayCourse & Speed Display Options COG/SOG GPS Alert Options Alert Reset to Factory Defaults ResetGPS Simulator Simulator Select GPS SIM, then select on on or OFF oﬀ as desiredRadio Setup Menu Radio Setup Radio Setup Menu Radio SetupChannel Names CH Name Set the Priority Channel Watch Mode Ring & Beep Volume Ring VOL and Beep VOLSelect Radio SETUP, then INT Speaker Internal Speaker Connections INT SpeakerRadio Setup INT Speaker Watch Mode WX Alert OFF Select Radio SETUP, then WX AlertWeather Alert Wx Alert Nmea protocol COM PortDSC Setup Menu Options DSC Setup Menu DSC SetupEnter Your User Mmsid User Mmsid MmsidCreate a Group Group Setup Maintain Your Groups Group SetupSelect DSC SETUP, then Group Setup Edit Group Name DetailsResponse to Individual Calls Indiv Reply Delete a GroupAtis Mmsid & Atis Functionality Enter or Edit Your Atis MmsidDSC Setup Indiv Reply Atis Mmsid Atis Func On OFF Enable Atis Functionality Atis FuncDSC Setup Group Setup Indiv Reply DSC Func On OFF DSC functionality options DSC FuncDSC Setup LL Reply Indiv Reply AutoDSC Func Manual LL Reply OFF Sending DSC calls Sending and Receiving DSC CallsMake a Routine Call Individual Retrying a Routine CallAcknowledgement of an Individual Incoming Call Indiv Call All Ships ALL Ships Call a Group GroupCall using the Call Log Call LOG Call using the Distress Log Dist LOGSet the channel and continue as explained in Section Request the LL Position of a Buddy LL Request Receiving DSC Calls Receiving an All Ships Call ALL Ships Receiving a Group Call Group Receiving a Geographic Call GeographReceiving a Polled Position Call Position Distress Calls Sending a Distress CallOpen the red cover labelled Distress Distress Acknowledgement distress ack or Relay Receiving a Distress Call DistressRCV Distress Flooding ESC Exit RCV DistressNorthstar VHF 710 US.EU Appendix a Technical SpecificationsReceiver TransmitterFrequency 156.025 163.275 MHz UV distant / 2.5 uV localAppendix B Troubleshooting International EU-DSC on Appendix C VHF Marine Channel ChartsSpecial Notes on International Channel Useage Page USA Channel Chart Send Receive Traffic Type Ship Name TAG Canadian Weather Channel Canada WX Noaa Weather Channel Noaa WXCanadian CG Canada Channel ChartPleasure Ship ShipWeather Digital selective calling for distress EU Inland Waterway Channels Country Specific156.85 162AIS Page Special Channels Appendix D Mmsid and License InformationInstallation Section Checklist pictured over Installation Options Checklist middle picture oppositeGimbal Installation Recessed Installation picture below Connecting the RadioChanging the Viewing Angle Wiring Details Connect the Radio Cables Rear view of base unitCable Pinout Color User Mmsid 800.628.4487 978.897.6600978.897.7241 PO Box