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AIS Binary Messages

AIS has the facility to carry arbitrary binary data. These packets are identified with an application specific message (ASM) identifier. The identifier is made up of a DAC and FI, as below.

DAC Designated Area Code FI Function Identifier

Message types: 6 ABM 8 BBM

12 and 14 correspond to 6 and 8, but are meant for safety related messages and don't use DAC/FI.

Class B CS should not transmit 6,8,12,14. Class B SO can. (ITU-R)

ais_binary.txt · Last modified: 2025/03/08 03:15 by river

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