Communications

VHF DSC radio – how best to communicate at sea

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There are many ways to communicate with others at sea. What makes the VHF DSC radio the best form of short range communication and why is it recommended?   The controls of a basic VHF DSC radio There are many ways to communicate with others at sea, ranging from signal flags to satellite phones. While it is not a legal requirement in most countries, leisure vessels...

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Know your Navlights & Shapes – essential for all skippers

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Know your Navlights & Shapes International Regulations for Preventing Collisions at Sea (ColRegs) Anyone who is responsible for a vessel at sea, from the smallest dinghy to an ocean going supertanker, day or night, must be able to recognise other vessels and quickly interpret what they see around them. This is not always easy, especially in crowded coastal...

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Boating emergency – how to broadcast a MAYDAY emergency call

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How to broadcast a MAYDAY emergency call   How to broadcast a MAYDAY emergency call if a vessel or person is in grave and imminent danger and immediate assistance is required: • Check that your VHF radio is on and high power setting is selected Select Channel 16 (or 2182kHz for MF) • Press the transmit button and say slowly and clearly: “MAYDAY, MAYDAY,...

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The VHF DSC Radio jargon buster

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AIS – Automatic Identification System This system is used by shipping. It allows another vessel or coast station to use equipment that can interrogate the radio in order to learn the course, speed, type of vessel, cargo, etc. It is also available to recreational vessels. ALRS Admiralty List of Radio Signals ATIS Automatic Transmitter Identification System...

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