Navtex
Automatic reception of maritime safety information MSI.
Narrow-band direct-printing telegraphic.
Broadcasts on 518 kHz in English.
490 kHz, 4209⋅5 kHz in national language.
Types of messages:
Navigational warning.
Meteorological warning.
Ice reports.
Search and rescue information.
Meteorological forecasts.
Pilot service messages.
