RYA SRC MMSI Numbers 3

Question 1

What information is stored against an MMSI in the coast station database?

Accepted Answer

Vessel name, type, length, owner details, and emergency contact numbers

Answer

The MMSI database (accessible by coastguards) contains vessel name, type, length, home port, owner's name and address, and emergency contact numbers. This information is critical for SAR response when a distress alert is received.

Question 2

What is the recommended action if you sell your vessel and the radio is included in the sale?

Accepted Answer

Cancel your MMSI with Ofcom and advise the new owner to register their own

Answer

When selling a vessel with its radio, the seller should cancel the MMSI with Ofcom. The buyer must register a new MMSI under their details before operating the DSC radio to ensure correct identification.

Question 3

What does the MMSI '002320010' (starting 0023) indicate about the station type?

Accepted Answer

It is a coast radio station or coast earth station (00 prefix)

Answer

MMSI numbers beginning with double zero (00) identify coast radio stations or coast earth stations. The following digits identify the specific country (232 for UK) and the individual station.

Question 4

How is an MMSI different from a vessel's call sign?

Accepted Answer

MMSI is a 9-digit digital number for DSC; call sign is an alphanumeric identifier for voice communications

Answer

An MMSI is a nine-digit number used specifically for DSC digital communications. A call sign is an alphanumeric identifier (e.g., MHBX4) used for voice communications and vessel identification purposes.

Question 5

What is the cost of registering a Ship Radio Licence and MMSI with Ofcom for a UK recreational vessel?

Accepted Answer

A small annual fee is charged by Ofcom for the Ship Radio Licence

Answer

Ofcom charges an annual fee for the Ship Radio Licence which includes the MMSI registration. The fee is modest for recreational vessels. Without this licence, operating a ship radio in UK waters is unlawful.

RYA SRC Practice Test

RYA SRC Practice Test

RYA SRC MMSI Numbers 3