Section 2 Name and Function of Each Unit  2-8 
 
2.2.4  Other ship information 
 
[Filter] button
When the cursor is placed on this button 
while AIS is On, the AIS Filter status is 
displayed.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following status is displayed. 
Filter type 
•  Filter shape: For Sector, the status is 
displayed with Start Angle and End 
Angle, and for Ring, the status is 
displayed with Distance.
 
•  Filtering mode: Priority or Display 
[AIS] button
This button sets the AIS function to On/Off. 
On:   Off:     
Memo 
When AIS is set to Off, alerts relating to 
AIS are also no longer displayed.
 
 
 
 
[1] Trail True/Relative switching button 
This button switches the trail mode to True or 
Relative.
 
When True is set, "T" is displayed on the button 
and when Relative is set, "R" is displayed on the 
button.
 
 
[2] 
Trail length switching combo box 
This button switches the trail length. 
For the details, refer to "5.4.9 Displaying other 
ship’s trails (Trails)". 
 
[3] [CLR] (
Trail Clear) button 
When this button is clicked on, the trail is 
cleared. 
For the details, refer to "5.4.9 Displaying other 
ship’s trails (Trails)". 
[1]
[2]
[3]
[1] Vector past position True/Relative switching 
button 
This button switches the vector past position to True or 
Relative.
 
For the details, refer to "6.4.2.2 Setting vector mode". 
 
[2] 
Vector length input box 
Enter a vector length. 
For the details, refer to "6.4.2.4 Setting the vector 
length". 
 
[3] 
Past position interval switching combo box 
For the details, refer to "6.8.1 Setting the past position". 
[1] CPA limit value input box 
Input a CPA limit value. For the details, refer to "6.4.3 
Setting collision decision criteria". 
 
[2] 
TCPA limit value input box 
Input a TCPA limit value. For the details, refer to "6.4.3 
Setting collision decision criteria".