APPENDIX
AP-12
AIR - AIS interrogation request
$--AIR,xxxxxxxxx,x.x,x,x.x,x,xxxxxxxxx,x.x,x*hh<CR><LF>
| | | | | | | | |
| | | | | | | | +--- 9
| | | | | | | +----- 8
| | | | | | +-------- 7
| | | | | +--------------- 6
| | | | +--------------------- 5
| | | +------------------------ 4
| | +--------------------------- 3
| +------------------------------ 2
+------------------------------------- 1
1. MMSI of interrogated station 1
2. ITU-R M.1371 message requested from station 1
3. Message sub-section
4. Number of second message requested from station 1
5. Message sub-section
6. MMSI of interrogated station 2
7. Number of message requested from station 2
8. Message data sub-section
9. Checksum
BBM - UAIS broadcast binary message.
!--BBM,x,x,x,x,x.x,s--s,x*hh<CR><LF>
| | | | | | | |
| | | | | | | +--- 8
| | | | | | +------ 7
| | | | | +--------- 6
| | | | +------------- 5
| | | +---------------- 4
| | +------------------ 3
| +-------------------- 2
+---------------------- 1
1. Total number of sentences needed to transfer the message, 1 to 9
2. Message sentence number, 1 to 9
3. Sequential Message identifier, 0 to 9
4. AIS channel for broadcast of the radio message
5. VDL message number(8 or 14), see ITU-R M.1371
6. Binary data
7. Number of fill-bits, 0 to 5
8. Checksum
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