Sperry Marine Visionmaster FT ECDIS, User Manual

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Targets ECDIS User Guide
10-16 65900012
Selected Target Functions
The Selected Target sub menu allows real time data on a selected target to
be displayed. The Selected Target window will appear on the chart display.
When a target has been selected it is identified with a green broken line
box, centred on the target origin for tracked targets and AIS targets.
For details on activating and tracking AIS targets, see AIS Targets.
The Selected Target sub menu divides into the following tab folders:
•
Target Data
•
AIS Info
Targets are identified by number, name or both, depending on the
identification parameters selected in Target Display.
Target Data
The Target Data tab folder shows the following
tracking data on a selected target:
•
Range - the distance of the target from
own ship's CCRP.
•
True Bearing - the true bearing of the
target from own ship's CCRP.
•
CPA (Closest Point of Approach) -the
CPA of the target from own ship's
CCRP
•
TCPA (Time to Closest Point of
Approach) - the TCPA of the target from
own ship's CCRP
•
BCR (Bow Crossing Range) the BCR of the target from own ship's
bow.
•
BCT (Bow Crossing Time) the BCT of the target from own ship's
bow.
If the system is in water stabilised mode (see Sensor Data Display) the
following two fields are shown:
•
CTW (Course Through Water) - the true CSE of target
•
STW (Speed Through Water) - the true STW of target