User's Manual

5.1 PREPARATION
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5.1.5 Setting Collision Decision Criteria (CPA/TCPA Limit)
For details on each operation, see 3.4 BASIC OPERATION and 4 MEASUREMENT OF RANGE AND
BEARING.
Set and check collision decision criteria before operating the TT system.
Procedure 1 Press [TT MENU] key.
2 Press [3].
The TT Setting menu will appear.
3 Press [5].
The ten-key screen will appear.
4 Select the value to be set pressing the
numeric key, and press [ENT].
The selected CPA Limit value will be
determined.
5 Press [6].
The ten-key screen will appear.
6. Select the value to be set pressing the numeric key, and press [ENT].
The selected TCPA Limit value will be determined.
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