ENS Jodie Knox, USCG Office of Search and Rescue (CG-534)

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28 Οκτ 2013 (πριν από 3 χρόνια και 9 μήνες)

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ENS Jodie Knox, USCG

Office of Search and Rescue (CG
-
534)

What is DSC?


Digital Selective Calling (DSC)


Digital
transfer of information between
radios


Instantly sends
an automatically formatted distress
alert to the Coast Guard and other vessels
nearby


Provides a non
-
experienced boater a
one
-
touch button for
distress


Privately hails other DSC
equipped vessels or shore
stations*


Decreases non
-
emergency radio traffic
on emergency channels*


Prevents missed distress
calls with continuous
transmission*


Transmits Maritime
Mobile Service Identities


Transmits GPS location
of caller*


Notifies boater of a call
and automatically
switches to the channel
caller is waiting on*

What does DSC do?

How DSC Works

DSC Alert Signal Relayed

Acknowledgment sent

Maritime Mobile Service Identities (MMSI)


DSC radios MUST receive an MMSI to function properly


Uniquely encoded nine digit number with vessel/owner’s
information (like a phone number)


Stores vessel information, owner, etc…


Identifies and helps find boater in a distress situation


Coast Guard maintains database for distress information
retrieval


Store other vessels MMSI’s into your radio (like a ‘contact list’)


You have to know a boater’s MMSI
to call them

What is MMSI?


It is FREE


Only takes a few minutes


Once you obtain your MMSI, enter it
into your DSC radio


Some radios only give you two chances;
however, a boater can obtain a
manufacturer ‘re
-
set’

Getting a MMSI


BoatUS
:


http://www.boatus.com/mmsi/instruct.htm



SeaTow
:


http://seatow.com/boating_safety/mmsi.asp



U.S. Power Squadrons:


http://www.usps4mmsi.com



FCC Online Licensing System
: (for international voyages)
https://wireless2.fcc.gov/UlsEntry/licManager/login.jsp



U.S. Coast Guard
Background on MMSI numbers:
http://www.navcen.uscg.gov/marcomms/Gmdss/mmsi.htm

Obtaining an MMSI

What can you do to help?

ENS Jodie Knox, USCG

Office of Search and Rescue (CG
-
534)