Version 2.0
161
Automatic Identification System
Operator’s Manual
AIS 7- LONG RANGE (LR) DISPLAY
This display shows a list of queries by other AIS stations going through the
INMARSAT-C or other long-range communication systems. The MX420/AIS can be
set to respond to long-range interrogations either automatically, manually (default) or
by external application. When the setting is in AUTO, the MX420 will provide the
requested information automatically. When in MANUAL, the operator needs to
press the
softkey to reply. This softkeys can be brought up by pressing the
E key. Every time a long range query is received, the MX420 will pop-up a message
window accompanied by an audio alarm. When in “Ext Appl” mode the external
application will need to respond to the MX420/AIS with permission to reply.
To look at the long-range list, press the AIS key several times until it shows the AIS 7
Long Range screen (as shown below).
Display Field Descriptions:
ID
-
Query index number (0-99)
TIME
-
Time when the long-range message was received (HH:MM)
MMSI`
-
ID of requesting station
REPLY
-
YES-means the query has been answered
NO - means no reply has been sent yet
ABCEFIOPUW
- an ‘X’ under each letter heading denotes the information re-
quested in the interrogation message
Reply message description:
A
- Ship’s: name, call sign and IMO number
B
- Date and time of message composition
C
- Position
E
- Course over ground
F
- Speed over ground
I
- Destination and Estimate Time of Arrival (ETA)
O
- Draught
Summary of Contents for MX420
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