Bedienungsanleitung Cobra MR F57B E (Seite 7 von 47) (Englisch)

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Maritime Mobile

Service Identity (MMSI)

Nothing Comes Close to a Cobra®9

8English

Digital Selective Calling (DSC)

Digital Selective Calling (DSC) •

Digital selective calling is a semi-automated system for establishing a radio

call. It has been designed by the International Maritime Organization (IMO)

as an international standard for VHF, MF, and HF calls and is part of the

Global Maritime Distress and Safety System (GMDSS).

DSC will eventually replace aural (listening) watches on distress frequencies

and will be used to announce routine and urgent maritime safety information

broadcasts. Until DSC is fully implemented, it is still necessary to maintain a listening

watch on Channel 16.

The DSC system allows mariners to instantly send a distress call with GPS

position coordinates (requires a GPS receiver to be connected to the radio)

to the Coast Guard and other vessels within range of the transmission.

DSC also allows mariners to initiate and receive distress, urgent, safety,

routine, position request, position send, and group calls between vessels

equipped with DSC capable radios.

VHF Marine Radio Protocols VHF Marine Radio Protocols

Maritime Mobile Service Identity (MMSI) •

An MMSI is a nine (9) digit number used on a marine radio capable of using digital

selective calling (DSC). It is used to selectively call other vessels or shore stations and

is similar to a telephone number.

For your CobraMarine® radio to operate in the DSC mode, you must enter your

maritime mobile service identity (MMSI) number. See page 41 for instructions

on how to enter it.

To Obtain An MMSI Number:

United Kingdom

In the United Kingdom, MMSI numbers are available from the Royal Mail Radio

Licensing Centre either when a radio license is applied for or any time afterward.

International

Users in other countries can obtain an MMSI from their country’s equivalent to

the UK Royal Mail, or their national telecommunications authority or ship registry.

This may involve amending or obtaining a ship station license.

North America

The MMSI Number Is Available In The U.S.A. From Any Of Two (2) Sources:

n U.S. Power Squadron www.usps.org

n BoatU.S.: 1-800-563-1536 – www.boatus.com/mmsi

NOTE

The above references are for recreational vessels only. Commercial vessels

should contact their national telecommunications authority or ship registry.

WARNING

This equipment is designed to generate a digital maritime distress and

safety signal to facilitate search and rescue. To be effective as a safety

device, this equipment must be used only within communication range

of a shore-based VHF marine channel to distress and safety watch system.

The range of the signal may vary, but under normal conditions should be

approximately 20 nautical miles.

MRF57E_MANL_GENRL.indd 8-9 5/7/15 2:45 PM

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