Northrop Grumman Sperry Marine VisionMaster FT, Руководство пользователя

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Annex B – Static Site Radar/Chart Radar User Guide
B-6 65900010
Target Anchor Watch
Target anchor watch enables the operator to verify that vessels at anchor
are not drifting by assigning an anchor watch to a target.
An anchor watch comprises a dotted line circle centred on the target's
anchor position, and a small anchor symbol next to the target's symbol.
Any targets may be selected for anchor watch. If a sleeping AIS target is
selected, the AIS target is made active.
To create a target anchor watch, do the following:
1. Right click on the target to be selected for
anchor watch. From the semi-transparent
context window click
Select Anchor
Watch . An anchor watch circle is drawn,
centred on the target's position.
The anchor watch circle radius defaults to 0.20 NM. To change the radius
for each target independently:
1. Select the target and navigate to the Target Data folder of the
Selected Target sub menu. When Anchor Watch is enabled, this
folder shows additional Target Anchor Watch data at the bottom of
the window.
2. To change the radius left click in the
Circle Radius field, hold down the left
key and move the trackball left to
decrease the circle size, or right to
increase. The range is from 0.05 to 1.0
NM.
If a target exits its anchor watch area, the watch circle, anchor symbol and
target bearing line change to a flashing red colour and a
Target Anchor Drift alarm is raised. When the Target
Anchor Drift alarm has been acknowledged, the symbol
and lines stop flashing but continue to be shown in red.
To remove an individual anchor watch on a target right click on the target
symbol and select
Remove Anchor Watch from the semi-transparent
context window.