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 Northstar Explorer VHF Series: 721/725 Operation and Installation Manual
Section 6 - Distress Calls
WARNING
A valid USER MMSI must be entered into this radio before these DSC functions can be used.
See Appendix E - Enter Your USER MMSI (USER MMSI).
6-1 Send a Distress Call
1. Open the red cover labelled DISTRESS.
If time is available to specify the nature of the distress, go to step 2. Otherwise, go directly to step 3.
2. Press the DISTRESS key (located under the red cover) to display the following categories.
Scroll to the category that describes your situation, then press ENT or push the rotary knob:
UNDESIGNATED Undesignated
FIRE (Fire)
FLOODING (Flooding)
COLLISION (Collision)
GROUNDING (Grounding)
LISTING (Listing)
SINKING (Sinking)
ADRIFT (Adrift)
ABANDONING (Abandoning)
PIRACY (Piracy)
OVER BOARD (Over Board)
3. Hold down the DISTRESS key for about 3 seconds, until you see the distress call message (DISTRESS CALL
SENT!) on the LCD. The whole display starts to flash and beep loudly.
Thedistresscallrepeatsvetimescontinuously.Itthenrepeatsrandomlyevery3.5to4.5minutesuntil
a distress acknowledgement (DISTRESS ACK) is received from a search and rescue authority or until you
cancel the distress call manually.
The radio selects CH16 automatically so that you can hear any incoming voice contacts from search and
rescue authorities or other vessels within range.
Press ESC if you need to cancel the distress call. This is the only key that operates in distress mode.
6-2 Receive a Distress Acknowledgement (DISTRESS ACK)
For a Distress Acknowledgement (DISTRESS ACK) sent from the Search and Rescue (SAR) authori-
ties of your country, your radio automatically cancels Distress Mode transmissions and CH16 appears.
Press PTT to establish voice contact with the Search and Rescue (SAR) authority.
The Search and Rescue (SAR) authorities of your country are the only instance allowed to send a Distress
Acknowledgement (DISTRESS ACK).
DISTRESS CALL
> ABANDONING
PIRACY
OVER BOARD
DISTRESS CALL
> PIRACY
HOLD DISTRESS
2 SECONDS..
DISTRESS CALL
SENT! WAIT..
PRESS ESC
TO CANCEL...