User's Manual
Table Of Contents
- Section 1 - General Information
- Section 2 - The Radio Menu (MENU)
- 2-1 The Radio Menu Options (MENU)
- 2-2 Show Weather, SNR or Happy Fish on Handset (INFO DATA)
- 2-3 Maintain Your Buddy List (BUDDY LIST)
- 2-4 Local or Distance Sensitivity (LOCAL/DIST)
- 2-5 Backlighting (BACKLIGHT) and Contrast (CONTRAST)
- 2-6 GPS Data and Time (GPS/DATA)
- 2-7 GPS Simulator (GPS SIM)
- 2-8 Reset to Factory Defaults (RESET)
- 2-9 Subscribe or Un-Subscribe the 705 handset (HS SETTING)
- Section 3 - Radio Setup Menu (RADIO SETUP)
- 3-1 The Radio Setup Menu Options (RADIO SETUP)
- 3-2 Select the Channel Bank (UIC) (US only)
- 3-3 Change Channel Names (CH NAME)
- 3-4 Ring and Beep Volume (RING VOLUME and KEY BEEP)
- 3-5 Internal Speaker Connections (INT SPEAKER)
- 3-6 Set the Priority Channel (WATCH MODE)
- 3-7 Weather Alert (WX ALERT) (US only)
- 3-8 NMEA or NAVBUS protocol (COM PORT) (721 / 725 only)
- 3-9 Barometric Displays (BARO SENSOR)
- 3-10 Temperature Display (TEMPERATURE)
- 3-11 HAPPY FISH Alarm ON or OFF
- Section 4 - DSC SETUP Menu
- 4-1 What is DSC?
- 4-2 DSC SETUP Menu Options
- 4-3 Check Your User MMSI (USER MMSI)
- 4-4 Maintain Your Groups (GROUP SETUP)
- 4-5 Response to Individual Calls (INDIV REPLY) (US only)
- 4-6 ATIS MMSI & ATIS Functionality (EU only)
- 4-7 DSC Functionality (DSC FUNC)
- 4-8 Response Type to LL Polling Calls (LL REPLY)
- 4-9 Mute the Notification Ringtone
- Section 5 - Send and Receive DSC Calls
- 5-1 The DSC CALL Menu Options
- 5-2 Call an Individual (INDIVIDUAL)
- 5-3 Call the Most Recent Caller (LAST CALL)
- 5-4 Call a Group (GROUP)
- 5-5 Call All Ships (ALL SHIPS)
- 5-6 Call using the Call Log (CALL LOG)
- 5-7 Call using the Distress Log (DIST LOG)
- 5-8 Request the LL Position of a Buddy (LL REQUEST)
- 5-9 Track Your Buddy (TRACK BUDDY)
- 5-10 Receive an All Ships Call (RCV: ALL SHIP)
- 5-11 Receive an Individual Call (RCV: INDIV)
- 5-12 Receive a Group Call (RCV: GROUP)
- 5-13 Receive a Geographic Call (RCV: GEOGRAPH)
- 5-14 Receive a Polled Position Call (RCV:POSITION)
- Section 6 - Distress Calls
- Appendix A - Technical Specifications
- Appendix B - Troubleshooting
- Appendix C - VHF Marine Channel Charts
- Appendix D - EU Inland Waterway Channels
- Appendix E - MMSI and License Information
- Section 7 - Install the Explorer 721/725
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Northstar Explorer VHF Series: 721/725 Operation and Installation Manual
2. The priority is set automatically to URGENCY. but you can change the priority level of the DSC call to
routine, safety, urgency, or distress. Choose:
•
URGENCY only when a serious situation or problem that could lead to a distress situation
• SAFETY to send safety information to all other vessels in range
• ROUTINE to make a routine call to all vessels (US only)
3. Select the working channel and press ENT or press the rotary knob. Duplex channels can’t usually be
called and are automatically eliminated from the suggested call list.
4. TheradioasksforconrmationoftheALLSHIPScall(SEND?).PressENTorpushtherotaryknobtoselect
YES and send the call, and continue as explained in Section 5-3.
5-6 Call using the Call Log (CALL LOG)
DSC CALL
GROUP
ALL SHIPS
> CALL LOG
11 123456789
INDIVIDUAL
ROUTINE
10:45 UTC
123456789
INDIVIDUAL
ROUTINE
> SET CHANNEL
123456789
> CALL BACK
DELETE
SAVE MMSI
123456789
INDIVIDUAL
ROUTINE
> SEND?
The Call Log contains the contact details for the 20 most recent incoming calls, so you call any of them
again quickly.
1. Press CALL/MENU to enter the DSC CALL menu, then select CALL LOG.
The radio displays the contact details for the most recent incoming call as the first entry (01) in the call
log.
2. Select the desired contact details. In this example, the contact details for the 11th most recent call are
displayed.
To save this contact in your buddy list, select SAVE MMSI and press ENT or push the rotary knob. Enter
a name for this contact. The logged MMSI is automatically displayed.
3. Press CALL, then press ENT or push the rotary knob to confirm the call back, then set the working channel
and press ENT or push the rotary knob to send the call. Continue as explained in Section 5-3.
5-7 Call using the Distress Log (DIST LOG)
The Distress Log contains the data for the 10 most recent relayed distress calls, so that you can call any of
them quickly. Always try to make voice contact on CH16 first, as follows:
1. Press CALL/MENU to enter the DSC CALL menu, then select DIST LOG.
2. The most recently received distress call is the first entry (01) in the Distress Log. Select the entry that you
want to call. The details are displayed over two screens that alternate every 1.5 seconds; the first screen
shows the location and name or MMSI of the vessel in distress, the second screen shows the nature of
the emergency (if specified) and the MMSI of the vessel that relayed the distress call.
3. Select CALL BACK, set the channel and continue as explained in Section 5-3.