A maritime mobile service (also MMS or maritime mobile radiocommunication service) is a mobile service between coast stations and ship stations, or between ship stations, or between associated on-board communication stations. The service may also be used by survival craft stations and emergency position-indicating radiobeacon stations.[1]
Classification
editThis 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 (article 1.30)
- Ship movement service (article 1.31)
Frequency allocation
editThe allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012).[2]
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 (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
editReferences
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