Using Ais For Collision Avoidance; Safe Zones - Raymarine E Series Reference Manual

81244_4.book Page 270 Thursday, January 31, 2008 1:53 PM
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To disable the dangerous target alarm:
1. Select Menu.
2. Select Alarm Setup.
3. Select AIS Alarms Setup.
4. Switch Dangerous Targets Alarm to OFF.
5. Press OK.
Setting up an AIS safe zone
To set up a safe zone around your vessel and specify the time to safe zone:
Note: If required you can also hide the safe zone ring via this menu.
Important
When the AIS receiver is connected and functioning, the system will check for
dangerous targets within the safe zone and if enabled issue an alarm whenever
necessary. Dangerous target alarm operates irrespective of the ON or OFF status of
the AIS target display (see
ring
MARPA and AIS options
Parameter
Vector Length
The time period specified for drawing length of vectors.
Target History
Plots a MARPA target's previous position at specified
intervals. The four most recent position points are dis-
played. If True target vectors are selected, the four most
recent vessel position points are also displayed.
Own vessel safe zone
The safe zone is a ring, centred on your boat, within which
a target is considered dangerous if it comes within a spec-
ified distance (CPA).
TARGET MARPA & AIS
TRACKING...
OPTIONS...
page 270
E-Series Networked Display Reference Manual
MARPA & AIS OPTIONS...
VECTOR LENGTH
TARGET HISTORY
OWN VESSEL SAFE ZONE
TIME TO SAFE ZONE
SAFE ZONE RING
Highlight and select OWN VESSEL
SAFE ZONE. Select required distance.
Highlight and select TIME TO SAFE
ZONE. Select required duration.
) or the VISIBLE/HIDDEN status of the safe zone
Options
(Default in bold)
0.5min, 1 min, 3 min, 6min, 12min, 30
min, 60 min
OFF, 0.5 min, 1 min, 3 min, 6 min
0.1 nm, 0.2nm, 0.5nm, 1.0 nm, 2.0nm
6min
Off
0.5nm
3min
HIDDEN