Saab R5 - ACA Regional Channel Assignment Message; AIQ Query Sentence; AIR AIS Interrogation Request Sentence

R5 SOLID AIS System
INTERPRETATION OF INPUT SENTENCES
7000 118-200, C2 Page 70
8.3.2 ACA – AIS Regional Channel Assignment Message
The zone created of this sentence must be accepted by the channel
management rules (size of zone, distance to own position, valid
channel number etc). If the zone isn’t accepted, the zone will be
ignored.
$--ACA,x,llll.ll,a,yyyy.yy,a,llll.ll,a,yyyy.yy,a,x,xxxx,x,xxxx,x,x,x,a,x,
hhmmss.ss
Field
Format
Name
Comment
1
--ACA
Sentence Id
Used
2
x
Sequence number
Ignored
3
llll.ll
NE latitude (2 fields)
Used
4
a
5
yyyy.yy
NE longitude (2 fields)
Used
6
a
7
llll.ll
SW latitude (2 fields)
Used
8
a
9
yyyy.yy
SW longitude (2 fields)
Used
10
a
11
x
Transitional zone size
Used
12
xxxx
Channel A
Used
13
x
Channel A bandwidth
Used
14
xxxx
Channel B
Used
15
x
Channel B bandwidth
Used
16
x
Tx/Rx mode
Used
17
x
Power level
Used
18
a
Information source
Ignored
19
x
In use flag
Ignored
20
hhmmss.
ss
Time of In use change
Ignored
8.3.3 AIQ – Query Sentence
$--AIQ,ccc
Field
Format
Name
Comment
1
--
Talker ID of requester
Used
2
AIQ
Talker ID for device
Used
3
ccc
Approved sentence formatter
of data being requested
It’s possible to query the
following sentences:
ACA, ALR, EPV, LRI, SSD, TRL,
TXT and VSD
8.3.4 AIR – AIS Interrogation Request
This sentence can also be used to do a “UTC Request”.
$--AIR,xxxxxxxxx,x.x,x,x.x,x,xxxxxxxxx,x.x,x,x
Field
Format
Name
Comment
1
--AIR
Sentence Id
Used
2
xxxxxxx
xx
MMSI 1
Used
3
x.x
Message ID 1.1
Used
4
x
Message sub section
Ignored
5
x.x
Message ID 1.2
Used, may be NULL
6
x
Message sub section
Ignored
7
xxxxxxx
xx
MMSI 2
Used, may be NULL
8
x.x
Message ID 2.1
Used, may be NULL