Operation Manual

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A-31
APPENDIX
1-10. AIS Filter Setting
■ Meaning of AIS Filter
When an AIS filter is set up, AIS targets in the filtering area can be displayed preferentially. A
default filter is set up within a circle with a radius of 20nm from own ship and other type of filter is
selectable by the procedure in this section. When 50 or more AIS targets exist within the limits of
the filter, AIS symbols are displayed according to the display priority indicated in 1-13 “Max target
number and Display priority”.
■AIS Filter Type Selection
There are three kinds of AIS filters as follows. One of them can be selected.
1) RANGE・・・ A filter is set up in the shape of a circle which makes a radius
set-up distance.
2) SECTOR・・・A filter is set up in the shape of a sector including the own ship
heading direction.
3) ZONE ・・・A zone area surrounded by two directions and two ranges from
own ship.
1. Left-click MENU on the screen.
Main menu opens.
2. Left-click SUB1 MENU .
SUB1 menu opens.
3. Left-click ARPA/AIS .
ARPA/AIS menu opens.
4. Left-click AIS SETTING.
AIS SETTING menu opens.
5. Left-click AIS FILTER.
AIS FILTER menu opens.
Operation
procedure