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18. TT AND AIS DISPLAYS
18-9
18.2.8 How to display own ship data
You can see own ship's data on the [Own Ship] page in the [NAV Status] menu. Open
the menu then click both [NAV Status] in the [TT/AIS] menu and the [Own Ship] tab.
18.3 Association
An AIS-equipped ship is usually displayed by two symbols on the chart for radar dis-
play. This is because the AIS ship position is measured by a GPS navigator (L/L)
whereas the radar detects the same ship by PPI principle (range and bearing relative
to own ship radar antenna).
To avoid the presentation of two target symbols for the same physical target, use the
“association” function. If target data from both AIS and TT are available and if the as-
sociation criteria are fulfilled, either the AIS or TT symbol is presented according to the
association method selected.
Association will not happen between AIS and TT if the AIS target is sleeping or the AIS
target is lost.
All association settings, including ON/OFF, can also be controlled from the radar
mode, with the [TT/AIS] setting box (see section 4.14). All settings are mutually
shared.
18.3.1 How to select association method
Click the location circled below to show "<" to select AIS symbol for associated target,
or ">" to select TT symbol for associated target. This setting overrides the correspond-
ing item on the [TT/AIS] menu. To turn off association, click the location to remove the
arrow.
MMSI: 457804356
Name: FURUNO Voyager
Call Sign: JZ5890312
Type: 0
Description: All ships of this type
Length(LOA): 223.2 m
Width: 31.8 m
Ref Bow: 3.3 m
Ref Port: 2.8 m
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