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) Radio Regulations (RR) [1] – defined as «A safety service in the maritime mobile service other than a port operations service, between coast stations and ship stations, or between ship stations, in which messages are restricted to those relating to the movement of ships. Messages which are of a public correspondence nature shall be excluded from this service.»

See also
Main articles: Radio station and Radiocommunication service
Ship station dedicated to Ship movement service.
"Ship movement" redirects here. Not to be confused with Ship motion.

Classification

The ITU Radio Regulations classifies this radiocommunication service as follows:
Mobile-satellite service (article 1.25)

References / sources
  1. ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.31, definition: ship movement service / ship movement radiocommunication service
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