AIS-SART

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A standard SART 9 GHz Radar Transponder, produced by Jotron, on board a Norwegian ferry

Shipboard Global Maritime Distress Safety System (GMDSS) installations include one or more search and rescue locating devices. These devices may be either an AIS-SART (from 1.january 2010) (AIS Search and Rescue Transmitter), or a radar-SART [[1]] (Search and Rescue Transponder). The AIS-SART is used to locate a survival craft or distressed vessel by sending updated position reports using a standard AIS class A position report. The position and time synchronization of the AIS-SART is derived from a built in GNSS [2] receiver.

The AIS-SART derives position and time synchronization from a built in GNSS receiver and transmits its position with an update rate of 1 minute. Every minute the position is sent as a series of [8] equal position reports, this is to maintain a high probability that at least one of the position reports is sent on the highest point of a wave.

SARTs are typically cylindrical, and brightly colored.

The specification for the AIS-SART are currently being developed by the AIS work group in IEC, TC80. A draft specification is planned to be published by the 3.quarter 2008.