Addressed safety related message. FIX: need to handle the -1 string length at the end 168 336 504 672 840 F 4 AU AS IN SOTDMA RATDMA ITDMA MOBILE BASE AIS message number. Must be 6 6 Indicated how many times a message has been repeated 0 default do not repeat any more 1 Unique ship identification number (MMSI). Also known as the Source ID 1193046 Sequence number as described in 5.3.1. Assigned to each station 3 Unique ship identification number (MMSI). 1193047 Should the message be restransmitted? 1 Must be 0 0