A maritime mobile service (also MMS or maritime mobile radiocommunication service) is a
mobile service between
coast station
A coast (or coastal) radio station (short: coast station) is an on-shore maritime radio station which may monitor radio distress frequencies and relays ship-to-ship and ship-to-land communications.
A coast station (also: '' coast radio station ...
s and
ship station
A ship station (or ship radio station) is a radio station located on board a sea vessel. The ITU Radio Regulations define it as "A mobile station in the maritime mobile service located on board a vessel which is not permanently moored, other than a ...
s, or between ship stations, or between associated
on-board communication station
An on-board communication station or on-board communication radio station is – according to article 1.79 of the International Telecommunication Union's Radio RegulationsITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1. ...
s. The service may also be used by
survival craft station
Survival craft station (also: survival craft radio station) is – according to ''Article 1.65'' of the International Telecommunication Union´s (ITU) radio regulationsITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.6 ...
s and
emergency position-indicating radiobeacon stations.
Classification
This radiocommunication service is classified in accordance with
ITU Radio Regulations (article 1) as follows:
*Maritime mobile service
**
Maritime mobile-satellite service (article 1.29)
**
Port operations service 290px, Ship station dedicated to ''port operation service''.
Port operations service (short: POS; | also: port operations radiocommunication service') is – according to ''Article 1.30'' of the International Telecommunication Union's ...
(article 1.30)
**
Ship movement service Ship station dedicated to ''Ship movement service''.
Ship movement service (short: SMS; | also: ''ship movement radiocommunication service'') is – according to ''Article 1.31'' of the International Telecommunication Union's (ITU) R ...
(article 1.31)
Frequency allocation
The allocation of radio frequencies is provided according to ''Article 5'' of the ITU Radio Regulations (edition 2012).
[''ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations'']
In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is with-in the responsibility of the appropriate national administration. The allocation might be primary, secondary, exclusive, and shared.
*primary allocation: is indicated by writing in capital letters (see example below)
*secondary allocation: is indicated by small letters
*exclusive or shared utilization: is within the responsibility of administrations
However, military usage, in bands where there is civil usage, will be in accordance with the ITU Radio Regulations. In NATO countries military utilizations will be in accordance with the
NATO Joint Civil/Military Frequency Agreement __NOTOC__
NATO Joint Civil/Military Frequency Agreement (NJFA) and is the universal NATO common civil/military treaty to regulate the military access to the radio frequency spectrum in the range of 14 kHz to 100 GHz in peacetime, during ...
(NJFA).
Frequency range
415... 495 kHz
505...526,5 kHz
1606,5...1625 kHz
1635...1800 kHz
2045...2160 kHz
2170...2173,5 kHz
2190,5...2194 kHz
2625...2650 kHz
4000...4438 kHz
6200...6525 kHz
8100...8815 kHz
12230...13200 kHz
16360...17410 kHz
18780...18900 kHz
19680...19800 kHz
22000...22855 kHz
25070...25210 kHz
26100...26175 kHz
See also
*
Radio station
*
Radiocommunication service
References
Mobile services ITU
Maritime communication
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