VHF

  Marine VHF radio uses the radio frequency range between 156.0 and 162.025 MHz, called the VHF maritime mobile band. A marine VHF set is a combined transmitter and receiver (transceiver) and operates only on standard, international frequencies known as channels. Channel 16 (156.8 MHz) Read more…

NAVTEX

NAVTEX is a system for broadcast and automatic reception of maritime safety and weather information. NAVTEX is part of the MSI, Maritime safety information, that is broadcast to mariners by official agencies for their safety. Maritime safety messages consist of messages Read more…

GMDSS Part 2

THE GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM (GMDSS) Functional Requirements The GMDSS provides that every ship, while at sea, shall be able to perform the following nine basic communication functions: transmitting ship-to-shore distress alerts (by at least two separate and independent Read more…

GMDSS Part 1

THE GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM (GMDSS) Introduction The Global Maritime Distress and Safety System is the technical, operational and administrative structure for maritime distress and safety communications worldwide. It was established in 1988 by the International Maritime Organization (IMO) which adopted Read more…

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