13-17  Section 13 Setting up the Operation Mode 
 
 
 
 
 
13.12 Setting AIS Filters 
Set information on AIS filters.   
By setting an AIS filter, the AIS target within the area can be displayed preferentially or only the inside 
of the area can be displayed. 
[Operation procedure] 
Open the filter setting screen by performing the following menu operations. 
[Menu] button → Settings → Filter 
 
Setting Item  Description of Setting  Setting Value 
Sector Filter  When this item is enabled, Sector Filter is displayed on 
the screen and filtering is performed in the operation 
mode that is selected in [Filtering Mode]. 
 
To enable: Select. 
To disable: Clear. 
Start Angle  Set up the starting angle of the Sector Filter. The angle 
value indicates the relative bearing based on the ship’s 
heading as the reference. When entry is confirmed, the 
entered value takes effect immediately. 
0.0 to 359.9° 
End Angle  Set up the end angle of the Sector Filter. The angle value 
indicates the relative bearing based on the ship’s 
heading as the reference. When entry is confirmed, the 
entered value takes effect immediately. 
0.0 to 359.9° 
Ring Filter  When this item is enabled, Ring Filter is displayed on the 
dialogue and filtering is performed in the operation mode 
that is selected in [Filtering Mode]. 
 
To enable: Select. 
To disable: Clear. 
Distance  Set up the distance of the Ring Filter. When entry is 
confirmed, the entered value takes effect immediately. 
0.0 to 120.0 NM 
Filtering Mode  Select an operation mode of the AIS filter. 
Display:  AIS targets cannot be displayed outside of the 
AIS filter range. 
Priority:  Priority is determined within the range of the 
AIS filter and AIS targets are displayed based on the 
priority. 
Display / Priority 
 
Creating a filter in the dialogue 
 
Creating a Sector Filter 
1  Click on the [Sector] tab. 
2  Click on [Make AIS Filter]. 
The button is highlighted and the cursor mode is set to the Make AIS Filter mode. 
3  Move the cursor to the start angle of the sector filter to be set and click the mouse 
button.   
A start angle can be directly input by selecting the [Start Angle] text box. 
4  Move the cursor to the end angle of the sector filter to be set and click the mouse 
button.   
An end angle can be directly input by selecting the [End Angle] text box.