Maritime mobile service
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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[edit]
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 (article 1.30)
- Ship movement service (article 1.31)
Frequency allocation[edit]
The 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[edit]
References[edit]
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