Set Up The Radio; Enter Your User Mmsid - NorthStar VHF Marine Radio Explorer 721EU Operation And Installation Manual

4. BLACK Power wire. Connect this to the NEGATIVE (-) battery terminal.
5. RED Power wire. Connect this to the POSITIVE (+) battery terminal. Check that a 10 Amp fuse is installed
on this power cable close to the battery.
6. ANT. A radio antenna is not supplied. A suitable radio antenna must be mounted and connected before
operating the Explorer 721 radio. Consult your dealer for advice if necessary.
7. GND. A ground connection is not usually required..

7-9 Set Up the Radio

IMPORTANT: You can't make any DSC transmissions until you've obtained a user MMSID and entered it into your
Explorer 721.
The user MMSID is a unique nine digit number, similiar to a personal telephone number. It is used on
marine transceivers that are capable of using DSC (Digital Select Calling).
If you don't have a user MMSID contact the appropriate authorities in your country. If you're unsure who
to contact, consult your Northstar dealer.

7-10 Enter Your User MMSID

WARNING: This is a once-only operation.
DSC SETUP
> USER MMSID
GROUP SETUP
INDIV REPLY
1. Select DSC SETUP, then USER MMSID. A dashed line appears.
Enter your user MMSID along the dashed line. Press ENT or push the rotary knob to confi rm each correct
entry and to move to the next digit.
If you make an error, press CH - until < appears, then press ENT or push the rotary knob to backup and
correct the entry.
3. Press ENT or push the rotary knob to store your user MMSID.
4. Enter your user MMSID again as a password check, then press ENT or push the rotary knob to permanently
store the user MMSID and return to the menu.
You can view your stored user MMSID at anytime by selecting USER MMSID in the main menu.
1
2
3
4 5
INPUT USER
MMSID
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Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual
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MMSID
> STORE
CANCEL
6
7
USER MMSID
INPUT AGAIN
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