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5.1.5 Setting Collision Decision Criteria
Input of CPA Limit
Procedures 1 Left-click the CPA limit setting button in the Target Information located at
the upper right of the display.
The CPA Limit value input screen will appear.
2 Enter the value to be set as a CPA limit.
For inputs to the value input screen, refer to Section “3.3.6 Operation on Numeric Value,
Latitude / Longitude and Character Input menu”.
Input of TCPA Limit
Procedures 1 Left-click the TCPA limit setting button in the Target Information located
at the upper right of the display.
The TCPA Limit value input screen will appear.
2 Enter the value to be set as a TCPA limit.
For inputs to the value input screen, refer to Section “3.3.6 Operation on Numeric Value,
Latitude / Longitude and Character Input menu”.
5.1.6 Setting CPA Ring
The CPA ring is displayed with a red circle, and the radius value is CPA Limit value.
Procedures 1 Left-click the CPA Ring button located at the lower right of the display.
The CPA ring will be displayed.
Note:
The CPA ring is not displayed when the true vector mode is selected.
z Set the optimum values of collision decision
conditions, depending upon vessel type, water area,
weather and oceanographic conditions.
(For the relations between those conditions and
alarms, refer to section “5.5 ALARM DISPLAY”.)
Attention
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