Maritime mobile-satellite service (MMSS, or maritime mobile-satellite radiocommunication service) is – according to Article 1.29 of the International Telecommunication Union's Radio Regulations (RR) – "A mobile-satellite service in which mobile earth stations are located on board ships; survival craft stations and emergency position-indicating radiobeacon stations may also participate in this service".
This radiocommunication service is classified in accordance with ITU Radio Regulations (article 1) as follows:
- Maritime mobile service (article 1.28)
- Maritime mobile-satellite service
- Port operations service (article 1.30)
- Ship movement service (article 1.31)
The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012).
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
- secondary allocation: is indicated by small letters
- exclusive or shared utilization: is within the responsibility of administrations
- Example of frequency allocation
|Allocation to services|
|Region 1||Region 2||Region 3|
- Selection of MMSS stations
References / sources
- ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.29, definition: maritime mobile service / maritime mobile radiocommunication service
- ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations