Ais Alarms - Raymarine E Series User Reference Handbook

Parameter Description
Own Vessel Safe Zone The safe zone is a ring,
centred on your boat,
within which a target is
considered dangerous
if it will enter this zone
within the Time to Safe
Zone period (see below).
Time to Safe Zone
If a target enters your
safe zone within this time
period, it is considered
dangerous.
Safe Zone Ring Controls whether the
safe zone ring is
displayed or hidden
on screen.
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10.11 AIS alarms

Options
• 0.1 nm
The AIS functions generate a number of alarms to alert you to
dangerous or lost targets.
• 0.2 nm
In addition to the dangerous target alarm previously described, the
• 0.5 nm
system generates an alarm when a dangerous target becomes a
lost target i.e. its signal has not been received for 20 seconds.
• 1.0 nm
Your AIS receiver generates local alarms which are displayed and
• 2.0 nm
sounded on your multifunction display whenever an alarm condition
• 3 min
exists on the unit.
• 6 min
Local AIS alarms
• 12 min
When the connected AIS unit generates an alarm, your multifunction
display shows a local alarm message and indicates the alarm status
• 24 min
in the data bar icon.
• Visible
Active AIS alarms list
• Hidden
The active alarm list shows the status of each local alarm. This list
can either be accessed via the Menu > AIS Layer Setup Menu, or
from the Menu > Alarms Setup Menu.
Note: When local AIS alarms are acknowledged, the target
is shown as dangerous (flashing, with a red outline), and the
active alarm status icon is displayed until the target is no longer
dangerous.
Acknowledging AIS alarms
In the chart or radar application:
1. Press the ACKNOWLEDGE softkey.
Note: An AIS alarm remains active until it is acknowledged on
your multifunction display.
E-Series Widescreen User reference