Furuno UAIS TRANPONDER FA-150 - Manual (Page 100)

APPENDIX
AP-11
ACA - AIS regional channel assignment message
$--ACA,x,IIII.I, a,yyyyy.y,a,IIII.I,a,yyyyy.y,a,x,xxxx,x,xxxx,x,x,x,a,x,hhmmss.s*hh
1. Sequence number, 0 to 9
2. Region Northeast corner latitude - N/S
3. Region Northeast corner longitude - E/W
4. Region Southwest corner latitude - N/S
5. Region Southwest corner longitude - E/W
6. Transition Zone Size
7. Channel A
8. Channel A bandwidth
9. Channel B
10. Channel B bandwidth
11. Tx/Rx mode control
12. Power level control
13. Not used
14. In-use flag
15. Time of in-used change
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
ACK - Acknowledge alarm
$--ACK,xxx*hh
| +--------------------- 2
+------------------------ 1
1. Local alarm number(identifier)
2. Checksum