NorthStar Navigation Explorer 721US, Explorer 721EU installation manual Symbol

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These symbols may not appear at all or may be shown in a different location on the optional handset.

Symbol

TX

HI LO

WX

WX ALT

BUSY

PRI

D

LOCAL

DSC

88

USA INT CAN

X

B A

CH1 CH2 CH3

ATIS

DSC

ACK

Meaning

Transmitting.

Transmission power. High (HI) 25 W or Low (LO) 1 W.

Weather channel.

Weather Alert. Alarm beeps will sound. 721US only.

Receiver busy with an incoming signal.

Priority channel is selected.

Duplex operation. Otherwise, blank for Simplex operation.

Local calling is selected. Otherwise, blank for distance calling.

DSC capability is available.

Indicates an incoming DSC call, or blinks to notify you of any unread Call Log messages

Low Battery warning (activates at 10.5 V)

Channel selected.

Selected channel bank for VHF radio operations and regulations.

Channel is temporarily deleted from the ALL SCAN operation.

Channel suﬃx, if applicable.

Shows which of the 3 favorite channels, if any, are selected.

Otherwise blank.

Enabled for use in European inland waterways. Otherwise blank. 721EU only.

DSC capability is available.

A message acknowledging your DSC call is being displayed.

Happy Fish symbol with one to four indicator bars to show the probability of good ﬁshing at your current location, based upon barometric pressure and air tempera- ture. Four bars show that good ﬁshing is likely. High pressure trends are associated with stable conditions and calm seas. Research indicates that best ﬁshing occurs when barometric pressure is rising and between 1010 and 1022 mb. During these opportune conditions, most ﬁsh are thought to feed anywhere within the water column. However, low pressure trends bring stormy seas and aﬀect air bladders, and these conditions make ﬁsh move to deeper levels and become less active.

Local weather forecast based on the local temperature and stored barometric pres- sure data. The icons are indicative only and are more accurate close to land rather than in open sea.

Digital Readout of the current barometric pressure (in mb or in/Hg) or the current temperature (in ºC or ºF), depending upon your selection.

8Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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Contents Explorer 721US / 721EU Important Safety Information Contents Send and Receive DSC Calls Industry Canada Features How to Display and Navigate MenusGeneral Information Customize your Northstar VHF RadioNormal Menu Mode Edit Mode Push Space How to Enter or Change Alphanumeric DataLCD Symbols and Meanings Symbol How the Microphone and Optional Handset Work Together Basic Operation and Key Functions CH2 or CH3 symbol disappears oﬀ the LCD Weather alert mode is onMenu see and the DSC set up menu see Section Then push to backupPower transmission setting is incorrect Complete listing of channel chartsMatically exits you from menu mode and stops scanning You must release PTT to receive a signalRadio Menu Options Menu Show Weather, SNR or Happy Fish on Handset Info Data Edit an Entry Maintain Your Buddy List Buddy ListAdd an Entry Local or Distance Sensitivity LOCAL/DIST Set Distance SensitivitySet Local Sensitivity Backlighting Backlight and Contrast ContrastSet the Backlighting Level Set the Contrast LevelGPS Data and Time GPS/DATA Manually Enter Position and UTC Time ManualTime Offset GPS/DATA Manual SettingLocal Time Time Offset Select GPS/DATA, then Setting Select LL Display Time Display Options Time DisplayPosition Display Options LL display Course & Speed Display Options COG/SOGReset to Factory Defaults Reset GPS Alert Options AlertGPS Simulator GPS SIM Select GPS SIM, then select on or OFF as desiredSelect the Channel Bank UIC Radio Setup Menu Radio SetupRadio Setup Menu Options Radio Setup Internal Speaker Connections INT Speaker Ring and Beep Volume Ring Volume and KEY BeepChange Channel Names CH Name Set the Priority Channel Watch Mode Select Radio SETUP, then WX AlertWeather Alert WX Alert Nmea or Navbus protocol COM PortSelect Radio SETUP, then COM Port Select Baro & Temp Barometric Displays Baro SensorSwitch the Barometric Display on or OFF Baro Disply Temperature Display TemperatureSet the Temperature Units Units Calibrate the Temperature Reading CALDSC Setup Menu DSC Setup Menu OptionsMaintain Your Groups Group Setup Create a Group Group SetupEdit Group Name or Group Mmsid Response to Individual Calls Indiv ReplyEnter or Edit Your Atis Mmsid Enable Atis Functionality Atis FuncAtis Mmsid & Atis Functionality Select DSC SETUP, then LL Reply DSC Functionality DSC FuncResponse Type to LL Polling Calls LL Reply Push the rotary knob to conﬁrmDSC Call Menu Options What is DSC?Send and Receive DSC Calls Distress only when there’s a distress situation Call an Individual IndividualRetry a Routine Call Acknowledge an Individual Incoming CallCall the Most Recent Caller Last Call Call a Group GroupCall All Ships ALL Ships This facility is useful and used frequentlySet the channel and continue as explained in Section Call using the Call Log Call LOGCall using the Distress Log Dist LOG Request the LL Position of a Buddy LL Request Track Your Buddy Track BuddyDSC Call Call LOG Dist LOG LL Request SET Buddy BUDDY1 On OFFReceive an All Ships Call RCV ALL Ship Receive an Individual Call RCV IndivReceive a Polled Position Call Rcvposition Receive a Group Call RCV GroupReceive a Geographic Call RCV Geograph Distress Calls Send a Distress CallReceive a Distress Acknowledgement Distress ACK Open the red cover labelled DistressRelay a Distress Call from the Distress Log Relay Receive a Distress Call RCV DistressReceive a Distress Relay RCV Distress Relay Appendix a Technical Specifications Northstar Explorer 721US and 721EUGPS/NMEA input Yes Comm. port Baud NMEA, 38400 baud Navbus Rotary channel selector YesChannel Naming Yes TransmitterAppendix B Troubleshooting Appendix C VHF Marine Channel Charts International EU-DSC onSpecial Notes on International Channel Useage Page USA Channel Chart Send Receive Traffic Type Ship Name TAG Wx01 RX Only 162.550 Wx02 RX Only 162.400Wx03 RX Only 162.475 Wx04 RX Only 162.425Canada Channel Chart 28B RX Only 162.000 Public Correspondence, RX Only 156.025 160.625 Public Correspondence, Duplex Yes62A 156.125 Canadian Coast Guard Yes 156.225 160.825 Public Correspondence, Duplex YesWeather EU Inland Waterway Channels Country Specific Digital selective calling for distressAIS 156.85162 Page Appendix D Mmsid and License Information Install the Explorer Installation OptionsChecklist There are two ways to install the radio. You can chooseGimbal Installation Recessed Installation Change the Viewing AngleInstall the Microphone Bulkhead Mount Drill the two pilot screw holes where markedConnectors are on the rear of the base unit, as follows Connect the Radio CablesSet Up the Radio Mmsid Store Cancel User Mmsid Input AgainEnter Your User Mmsid GND. a ground connection is not usually requiredCompleted Installation with Optional Handset 0560