Long Range Identification and Tracking. A ship reporting system requiring ships to automatically transmit their identity, position and date/time at 6–hour intervals, as part of Maritime Domain Awareness, by contracting Governments under SOLAS.
Lower Sideband mode of emission. A form of single sideband emission, where only the lower sideband is transmitted.
Metre. Unit of length.
Maritime Safety Information (MSI)
Distress Alerts, navigational warnings, meteorological warnings and forecasts and other important safety information for ships.
Modernised Australian Ship Tracking and Reporting System (replaces AUSREP).
Maritime Communications Station. Another term for a coast station.
Medium Frequency (300 to 3 000 kHz).
Medical and First Aid Guide. Part of the International Maritime Dangerous Goods Code.