APPENDIX
AP-10
ACA - AIS regional channel assignment message
This sentence is used to both enter and obtain channel management information.
$--ACA,x,IIII.I, a,yyyyy.yy,a,IIII.II,a,yyyyy.yy,a,x,xxxx,x,xxxx,x,x,x,a,x,hhmmss.ss*hh<CR><LF>
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. Information source
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<CR><LF>
| +--------------------- 2
+------------------------ 1
1. Local alarm number(identifier)
2. Checksum
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