Explorer 721US / 721EU
Important Safety Information
Contents
Send and Receive DSC Calls
Industry Canada
How to Display and Navigate Menus
Features
General Information
Customize your Northstar VHF Radio
How to Enter or Change Alphanumeric Data
LCD Symbols and Meanings
Normal Menu Mode Edit Mode Push Space
Symbol
How the Microphone and Optional Handset Work Together
Basic Operation and Key Functions
Weather alert mode is on
CH2 or CH3 symbol disappears off the LCD
Menu see and the DSC set up menu see Section
Then push to backup
Complete listing of channel charts
Power transmission setting is incorrect
Matically exits you from menu mode and stops scanning
You must release PTT to receive a signal
Radio Menu Options Menu
Show Weather, SNR or Happy Fish on Handset Info Data
Maintain Your Buddy List Buddy List
Add an Entry
Edit an Entry
Set Distance Sensitivity
Local or Distance Sensitivity LOCAL/DIST
Set Local Sensitivity
Backlighting Backlight and Contrast Contrast
Set the Contrast Level
Set the Backlighting Level
GPS Data and Time GPS/DATA
Manually Enter Position and UTC Time Manual
GPS/DATA Manual Setting
Local Time Time Offset
Time Offset
Time Display Options Time Display
Select GPS/DATA, then Setting Select LL Display
Position Display Options LL display
Course & Speed Display Options COG/SOG
GPS Alert Options Alert
Reset to Factory Defaults Reset
GPS Simulator GPS SIM
Select GPS SIM, then select on or OFF as desired
Radio Setup Menu Radio Setup
Radio Setup Menu Options Radio Setup
Select the Channel Bank UIC
Ring and Beep Volume Ring Volume and KEY Beep
Change Channel Names CH Name
Internal Speaker Connections INT Speaker
Select Radio SETUP, then WX Alert
Set the Priority Channel Watch Mode
Weather Alert WX Alert
Nmea or Navbus protocol COM Port
Barometric Displays Baro Sensor
Select Radio SETUP, then COM Port Select Baro & Temp
Temperature Display Temperature
Switch the Barometric Display on or OFF Baro Disply
Set the Temperature Units Units
Calibrate the Temperature Reading CAL
DSC Setup Menu Options
DSC Setup Menu
Maintain Your Groups Group Setup
Create a Group Group Setup
Response to Individual Calls Indiv Reply
Edit Group Name or Group Mmsid
Enable Atis Functionality Atis Func
Atis Mmsid & Atis Functionality
Enter or Edit Your Atis Mmsid
DSC Functionality DSC Func
Select DSC SETUP, then LL Reply
Response Type to LL Polling Calls LL Reply
Push the rotary knob to confirm
What is DSC?
Send and Receive DSC Calls
DSC Call Menu Options
Call an Individual Individual
Distress only when there’s a distress situation
Retry a Routine Call
Acknowledge an Individual Incoming Call
Call a Group Group
Call the Most Recent Caller Last Call
Call All Ships ALL Ships
This facility is useful and used frequently
Call using the Call Log Call LOG
Call using the Distress Log Dist LOG
Set the channel and continue as explained in Section
Track Your Buddy Track Buddy
Request the LL Position of a Buddy LL Request
DSC Call Call LOG Dist LOG LL Request
SET Buddy BUDDY1 On OFF
Receive an Individual Call RCV Indiv
Receive an All Ships Call RCV ALL Ship
Receive a Group Call RCV Group
Receive a Geographic Call RCV Geograph
Receive a Polled Position Call Rcvposition
Send a Distress Call
Distress Calls
Receive a Distress Acknowledgement Distress ACK
Open the red cover labelled Distress
Receive a Distress Call RCV Distress
Receive a Distress Relay RCV Distress Relay
Relay a Distress Call from the Distress Log Relay
Northstar Explorer 721US and 721EU
Appendix a Technical Specifications
GPS/NMEA input Yes Comm. port Baud NMEA, 38400 baud Navbus
Rotary channel selector Yes
Transmitter
Channel Naming Yes
Appendix B Troubleshooting
International EU-DSC on
Appendix C VHF Marine Channel Charts
Special Notes on International Channel Useage
Page
USA Channel Chart
Send Receive Traffic Type Ship Name TAG
Wx02 RX Only 162.400
Wx01 RX Only 162.550
Wx03 RX Only 162.475
Wx04 RX Only 162.425
Canada Channel Chart
156.025 160.625 Public Correspondence, Duplex Yes
28B RX Only 162.000 Public Correspondence, RX Only
62A 156.125 Canadian Coast Guard Yes
156.225 160.825 Public Correspondence, Duplex Yes
Weather
Digital selective calling for distress
EU Inland Waterway Channels Country Specific
156.85
162
AIS
Page
Appendix D Mmsid and License Information
Installation Options
Install the Explorer
Checklist
There are two ways to install the radio. You can choose
Gimbal Installation
Change the Viewing Angle
Recessed Installation
Drill the two pilot screw holes where marked
Install the Microphone Bulkhead Mount
Connectors are on the rear of the base unit, as follows
Connect the Radio Cables
Mmsid Store Cancel User Mmsid Input Again
Set Up the Radio
Enter Your User Mmsid
GND. a ground connection is not usually required
Completed Installation with Optional Handset
0560