An AIS man overboard (MOB) beacon uses an AIS signal to transmit the position of a person overboard to all vessels equipped with an AIS receiver or transponder. An AIS SART can be used to locate a life raft or lifeboat in an emergency situation.
An AIS SART with its position close to the waterline and limited 2W output would typically have a maximum range of 5-6NM. A MOB device would typically have a range of 2-3NM.
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