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Technical reference
6.8.1
ABM - Addressed binary and safety related message
This sentence allows external applications to transmit binary and safety messages using the AIS transceiver
via AIS messages 6 and 12.
!--ABM,x,x,x,xxxxxxxxx,x,x.x,s--s,x*hh<CR><LF>
Field
number
1
x =
2
x =
3
x =
4
xxxxxxxxx =
5
x =
6
x.x =
7
s--s =
8
x =
6.8.2
ACA - AIS regional channel assignment message
This sentence is used to both enter and obtain channel management information.
$--ACA,x,llll.ll,a,yyyyy.yy,a,llll.ll,a,yyyyy.yy,a,x,xxxx,x,xxxx,x,x,x,a,x,hhmmss.ss*hh<CR><LF>
Field
number
1
x =
2
llll.ll,a =
3
yyyyy.yy,a =
4
llll.ll,a =
5
yyyyy.yy,a =
6
x =
7
xxxx =
8
x =
9
xxxx =
10
x =
11
x =
12
x =
13
a =
14
x =
15
hhmmss.ss =
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Description
Total number of sentences needed to transfer the message
Sentence number
Sequential Message identifier
The MMSI of destination AIS transceiver for the ITU-R M.1371 message
AIS channel for broadcast of the radio message
ITU-R M.1371 message ID
Encapsulated data
Number of fill-bits, 0-5
Description
Sequence Number, 0 to 9
Region Northeast corner latitude - N/S
Region Northeast corner longitude - E/W
Region Southwest corner latitude - N/S
Region Southwest corner longitude - E/W
Transition Zone Size
Channel A
Channel A bandwidth
Channel B
Channel B bandwidth
Tx/Rx mode control
Power level control
Information source
In-Use Flag
Time of "in-use" change
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