NorthStar Navigation Explorer 721US, Explorer 721EU Install the Microphone Bulkhead Mount

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7-7 Install the Microphone Bulkhead Mount

1.Hold the microphone bulkhead mount at the chosen location and use a soft pencil to mark the screw hole positions on the mounting surface.

Ensure that the microphone curly cable will comfortably reach this location BEFORE you drill.

2.Drill the two pilot screw holes where marked.

3.Use a short length Philips screwdriver and the set of two ﬂat screws, spring washers, plain washers, and nuts to secure the microphone bulkhead mount at the location site.

4.Hang the microphone on its mount.

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NOTE: This mic clip has a special magnet glued in the rear of the clip to sense ON/OFF HOOK. Other mic hangers cannot be used.

7-8 Connect the Radio Cables

The connectors are on the rear of the base unit, as follows:

1.GPS connector. Plug the GPS cable jack into the connector. (If you’re not using this, be sure to put the protective cap securely over the connector to protect it from moisture and dust.)

2.Docking Cable connector for optional Handset. Plug the docking cable jack into the connector. (If you’re not using this, be sure to put the protective cap securely over the connector to protect it from moisture and dust.)

3.External Speaker connector. Plug the external speaker cable jack into the connector BEFORE powering on the radio. Use a 4 Ohm 4 Watt external speaker.

58	Northstar 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 General Information FeaturesHow to Display and Navigate Menus Customize your Northstar VHF RadioLCD Symbols and Meanings How to Enter or Change Alphanumeric DataNormal Menu Mode Edit Mode Push Space Symbol How the Microphone and Optional Handset Work Together Basic Operation and Key Functions Menu see and the DSC set up menu see Section CH2 or CH3 symbol disappears oﬀ the LCDWeather alert mode is on Then push to backupMatically exits you from menu mode and stops scanning Power transmission setting is incorrectComplete listing of channel charts You must release PTT to receive a signalRadio Menu Options Menu Show Weather, SNR or Happy Fish on Handset Info Data Add an Entry Maintain Your Buddy List Buddy ListEdit an Entry Set Local Sensitivity Local or Distance Sensitivity LOCAL/DISTSet Distance Sensitivity Backlighting Backlight and Contrast ContrastGPS Data and Time GPS/DATA Set the Backlighting LevelSet the Contrast Level Manually Enter Position and UTC Time ManualLocal Time Time Offset GPS/DATA Manual SettingTime Offset Position Display Options LL display Select GPS/DATA, then Setting Select LL DisplayTime Display Options Time Display Course & Speed Display Options COG/SOGGPS Simulator GPS SIM Reset to Factory Defaults ResetGPS Alert Options Alert Select GPS SIM, then select on or OFF as desiredRadio Setup Menu Options Radio Setup Radio Setup Menu Radio SetupSelect the Channel Bank UIC Change Channel Names CH Name Ring and Beep Volume Ring Volume and KEY BeepInternal Speaker Connections INT Speaker Weather Alert WX Alert Set the Priority Channel Watch ModeSelect Radio SETUP, then WX Alert Nmea or Navbus protocol COM PortSelect Radio SETUP, then COM Port Select Baro & Temp Barometric Displays Baro SensorSet the Temperature Units Units Switch the Barometric Display on or OFF Baro DisplyTemperature Display Temperature Calibrate the Temperature Reading CALMaintain Your Groups Group Setup DSC Setup MenuDSC Setup Menu Options Create a Group Group SetupEdit Group Name or Group Mmsid Response to Individual Calls Indiv ReplyAtis Mmsid & Atis Functionality Enable Atis Functionality Atis FuncEnter or Edit Your Atis Mmsid Response Type to LL Polling Calls LL Reply Select DSC SETUP, then LL ReplyDSC Functionality DSC Func Push the rotary knob to conﬁrmSend and Receive DSC Calls What is DSC?DSC Call Menu Options Retry a Routine Call Distress only when there’s a distress situationCall an Individual Individual Acknowledge an Individual Incoming CallCall All Ships ALL Ships Call the Most Recent Caller Last CallCall a Group Group This facility is useful and used frequentlyCall using the Distress Log Dist LOG Call using the Call Log Call LOGSet the channel and continue as explained in Section DSC Call Call LOG Dist LOG LL Request Request the LL Position of a Buddy LL RequestTrack Your Buddy Track Buddy SET Buddy BUDDY1 On OFFReceive an All Ships Call RCV ALL Ship Receive an Individual Call RCV IndivReceive a Geographic Call RCV Geograph Receive a Group Call RCV GroupReceive a Polled Position Call Rcvposition Receive a Distress Acknowledgement Distress ACK Distress CallsSend a Distress Call Open the red cover labelled DistressReceive a Distress Relay RCV Distress Relay Receive a Distress Call RCV DistressRelay a Distress Call from the Distress Log Relay GPS/NMEA input Yes Comm. port Baud NMEA, 38400 baud Navbus Appendix a Technical SpecificationsNorthstar Explorer 721US and 721EU 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 Wx03 RX Only 162.475 Wx01 RX Only 162.550Wx02 RX Only 162.400 Wx04 RX Only 162.425Canada Channel Chart 62A 156.125 Canadian Coast Guard Yes 28B RX Only 162.000 Public Correspondence, RX Only156.025 160.625 Public Correspondence, Duplex Yes 156.225 160.825 Public Correspondence, Duplex YesWeather EU Inland Waterway Channels Country Specific Digital selective calling for distress162 156.85AIS Page Appendix D Mmsid and License Information Checklist Install the ExplorerInstallation Options There are two ways to install the radio. You can chooseGimbal Installation Recessed Installation Change the Viewing AngleConnectors are on the rear of the base unit, as follows Install the Microphone Bulkhead MountDrill the two pilot screw holes where marked Connect the Radio CablesEnter Your User Mmsid Set Up the RadioMmsid Store Cancel User Mmsid Input Again GND. a ground connection is not usually requiredCompleted Installation with Optional Handset 0560