User's Manual

JMA-9172-SA Instruction Manual > 5.OPERATION OF TARGET TRACKING AND AIS > 5.1 PREPARATION
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5
The vector of an AIS target is to be displayed with a vector over ground or over
water, depending on the speed sensor setting and current offset setting. The type
of the currently displayed vector can be confirmed by viewing the setting of the
stable mode.
When the vector of an AIS target is displayed with a vector over water, the system
has converted the AIS target's vector over ground to the vector over water
according to the data received from the AIS and the own ship's information.
5.1.2.3 Types and Definitions of Association Target Symbols
When a tracked target and an AIS target are decided as identical, it is displayed
with either of the following symbols:
a. Setting of Tracked Target Symbol Display
This function switches the tracking target symbol display between on and
off.Even if the tracking target symbol display is turned off, the data is retained.
Procedures
1) Left-click the button in the Target Information located at the
upper right of the display.
The tracking target symbol display will be set to on or off.
3. Sleeping AIS target
When is displayed for
the stability mode (Upper left of
the display on page 2-3):
Vector over ground
When is displayed for
the stability mode (Upper left of
the display on page 2-3):
Vector over water
NOTE:
When the AIS target's symbol is activated but the vector is not
displayed, the following are probable causes of the trouble:
• COG/SOG is not yet input from the GPS.
• The selected speed sensor is malfunctioning.
Vector/
Symbol
Definition Remarks
Priority for tracked target
Association target
Priority for AIS target
Association target
GND
Sea