Targets
ECDIS-E User Guide
9-38
65934012
Limits and Settings
The Limits and Settings window defines the
following:
CPA/TCPA limits
bow crossing (BCR/BCT) limits
Target Association settings and limits
Lost Target Alert enablement and lost
target range limit setting
A target is considered dangerous if it infringes
the defined limits set in this window. When this
happens an alert is raised, the alert is cleared
automatically when there are no targets
infringing the defined limits.
To change the infringement limits do the
following.
1. Click inside the field to be changed. The
value changes from white to green
(editable).
2. Move the trackball left (to decrease the
limit) or right (to increase). When the
limit has been correctly defined left click
to enter value and exit edit mode.
Closest Point of Approach & Bow Crossing Limits
The system default values and the minimum/maximum infringement limits
for CPA/TCPA and BCR/BCT are shown in the table below.
Parameter
CPA/BCR
TCPA/BCT
System default value
0.2 NM
10 minutes
Range of values
0.1 to 20.0 NM
1 to 99 minutes
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