Maritime radionavigation service

Maritime radionavigation service (short: MRNS) is – according to Article 1.44 of the International Telecommunication Union's (ITU) Radio Regulations (RR)[1] – defined as "A radionavigation service intended for the benefit and for the safe operation of ships."

Radionavigation land station (LORAN-C-transmitter Rantum)
Radionavigation mobile station (RDF) 1930

This service is a so-called safety-of-life service, must be protected for interferences, and is essential part of navigation.

Classification

This radiocommunication service is classified in accordance with ITU Radio Regulations (article 1) as follows:
Radiodetermination service (article 1.40)

Radio stations

In general the maritime radionavigation service distinguishes radio stations as follows:

gollark: What's textfiles?
gollark: I'm sure I could get a copy if I cared.
gollark: Vaguely. It's meant to be some sort of text on bomb-making and stuff, but has been criticized for actually being pretty inaccurate a lot of the time and apparently maybe having edited wrong-er copies floating around.
gollark: I don't really care very much either way. Also, "know too much"?
gollark: ... you know people can read the filenames right?

See also
  • Radio station
  • Radiocommunication service

References
  1. ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.44, definition: maritime radionavigation service
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