Paul Searle Paul Searle

Automatic Identification System (AIS) for Ships is a Lifesaver for Yachtsman

A new navigational system has been developed that I believe is one of the best new products that we have seen in years. Automatic Identification System or AIS is a system used primarily by ships and vessel traffic control systems, principally for identification of vessels at sea. AIS helps to resolve the difficulty of identifying ships when not in visual contact, such as at night, in fog, or while transiting through blind channels. The system was designed for ships to exchange information with each other, such as vessel identification, position, course, speed, etc. It works by integrating an onboard VHF transceiver system with a GPS receiver, Gyrocompass, and rate of turn indicator. All of these items are monitored continuously by the onboard AIS system and then broadcast in a quick burst of digital information. IMO SOLAS requires AIS to be installed onboard all ships greater than or equal to 300 gross tons. It is estimated that 40,000 or more ships, tugs, and large non-commercial vessels currently carry AIS equipment.

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