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MARITIME MOBILE SERVICE IDENTITY (MMSI)
The Maritime Mobile Service Identity (MMSI) number is the nine-digit number used
on marine radios like your VHF255S that are capable of using Digital Selective Calling
(DSC). This number is used like a telephone number to call other vessels individually
and automatically.
NOTE: You must get an MMSI assigned to you before you can perform this procedure, and
you will ONLY be allowed to perform this operation once. You must enter your user MMSI
before you can use the DSC functions. If there is no User MMSI stored and an attempt is
made to use the DSC function of the radio, the LCD will display the following message:
If you are a non-commercial user in U.S. waters (e.g. a recreational boater),
you must obtain an MMSI from either BOAT US or SEATOW. The official
sources of recreational MMSI numbers are: http://www.boatus.com/mmsi/ and
http://www.seatow.com/boatingsafety/mmsiinfo.htm. They are both sanctioned by
the FCC and the U.S. Coast Guard and are therefore the official points of registration for
recreational MMSI numbers in the U.S.
NOTE: The following website is the official Coast Guard website that administers MMSIs.
For full details of the rules and regulations of MMSI numbers, please visit:
http://www.navcen.uscg.gov/marcomms/gmdss/mmsi.htm.
To obtain an MMSI assignment:
1. Contact BOAT US or SEATOW to obtain a unique MMSI number
for your VHF255S radio. Go to: http://www.boatus.com/mmsi/ or
http://www.seatow.com/boatingsafety/mmsiinfo.htm and follow the
instructions.
2. When you have obtained your unique MMSI number, write it down
IMMEDIATELY in the space provided on the inside front cover of this manual.
NOTE: You should also write down the serial number (found on the left panel of the radio
base station) on the inside front cover of this manual, for future reference.
DSC IS NOT
OPERATIONAL
PLEASE ENTER
MMSI