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
Rotary knob Channel Select. Turn to select a channel. The current channel is shown on the LCD in BIG
digits with an A or B designator suffix (if applicable) in small letters below the channel
number. (See Appendix C for a listing of channel frequencies.)
Push to activate the ENT (Enter) function.
You can also use the rotary knob for alphanumeric entry if you don’t have an alphanu-
meric microphone. Turn to step through alphanumeric characters one at a time then
pushtoconrmeachselection.Ifyoumakeanerror,selectthe<characterthenpush
to backup.
info Information. Press on the base MIKE to toggle through the INFO display to show the
barometric historgram, the barometric readout and temperature, or the Signal-to-Noise
Ratio (SNR).
H/L Transmission Power. High (HI) 25 W or Low (LO) 1 W. Press to toggle between high or
low transmission power for the entire channel bank. The HI or LO selection is shown on
the LCD.
Some channels allow only low power transmissions. Error beeps will sound if the power
transmission setting is incorrect.
Some channels allow only low power transmissions initially, but can be changed to high
power by holding down H/L and PTT at the same time. See Appendix C for a complete
listing of channel charts.
+ CH - Channel Select. Press CH + or CH - to step through the available channels one at a time,
or hold down to scroll rapidly through all the available channels. The current channel is
shown on the LCD in BIG digits (with an A or B designator suffix if applicable in small letters
below the channel number). (See Appendix C & D for a listing of channel frequencies.)
Press CH + or CH - to scroll the cursor up and down menu options on the LCD when
navigating menus.
When editing an item containing only numbers, press CH - to step through the numbers
or hold down to scroll rapidly.
To enter a character, press Ch + to step through the alphabet or hold down to scroll
rapidly.
ENT Enter. Press ENT when navigating menus, to confirm entries and edits.
PTT Press To Talk. Press PTT to transmit at any time on an allowable channel. This automati-
cally exits you from menu mode and stops scanning.
You must release PTT to receive a signal.
If PTT sticks, a built-in timer will automatically shut down a transmission after five minutes
and sound the error beeps. This timer is required by FCC regulations.