Reference Manual Part 2

163 Chapter 12: Automatic Identification System
• GOTO the sending vessel’s position.
Note: When the simulator is operating you will not be able to
receive any safety messages.
12.11 AIS alarms
In addition to the dangerous target alarm, the system generates an
alarm when a dangerous target becomes lost (this happens if the
AIS signal from a tracked vessel is not received for more than 20
seconds).
When the connected AIS unit generates an alarm, the G-Series
system indicates the alarm status in the data bar and displays a
warning message:
Active alarm list
The active alarm list shows the status of each local alarm. This list
can either be accessed via the AIS Layer Setup Menu (see
page 158) or from the Alarms Setup Menu (see page 194).
To acknowledge an AIS alarm
1. Press either the REMOVE MESSAGE or VIEW AIS ALARM
LIST softkey.
2. Acknowledge the message at your AIS unit.
Note: Alarms remain active until they are acknowledged on the
AIS unit. Removing the message or adding it to the Alarm
list on your G-Series system does not cancel the alarm.
12.12 Simulator mode
We recommend that you use the simulator to familiarize yourself
with the AIS function.
When the system simulator is switched on (see
page 29), it dis-
plays 20 AIS targets within a 25nm range. These targets are
displayed using the appropriate AIS targets status symbol (see
page 160) and move around the screen as if they were real targets.
Note: Incoming safety messages cannot be displayed while the
simulator is switched on.
REMOVE
MESSAGE
VIEW AIS
ALARM LIST...
4nm North-Up (Relative Motion) Local
AIS message
AIS Local Alarm
This alarm must be acknowledged on your
AIS Receiver.
To remove this message press REMOVE
MESSAGE.
"AIS message"
D8968_1
AIS Alarm
active icon