2.3    FUNCTIONS OF SOFTWARE BUTTONS 
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2 
 
 
y y 
2.3.6    Software Buttons for Area 6 (Other Ship Information Area) 
(Right Side of the Radar Display) 
 
 
 
R 9minVector
NM
1minLimit
0.1
R 0.1PAST  POSN
NM
Range
Filter
R 10minTrails
09:52
Association
AIS
 
 
 
 
Target vector display true / relative 
switching 
The  tracked  target  /  AIS  target  vector  display  is 
switched  to    T    (true  vector)  /    R    (relative 
vector) whenever this button is clicked. 
This  setting  is  switched  together  with  the  past 
position display true / relative switching. 
 
Target vector length setting 
Set  a  vector  length  of  the  tracked  target  /  AIS 
target. 
If  this button  is  clicked, the  numeric  value  input 
screen  is  opened.  After  setting  the  length, 
determine the setting by clicking    ENT . 
 
CPA limit setting 
Set a CPA limit. 
If  this button  is  clicked, the  numeric  value  input 
screen  is  opened.  After  setting  the  limit, 
determine the setting by clicking    ENT . 
 
TCPA limit setting 
Set a TCPA limit. 
If  this button  is  clicked, the  numeric  value  input 
screen  is  opened.  After  setting  the  limit, 
determine the setting by clicking    ENT . 
 
Past position display true / relative 
switching 
The  tracked  target  /  AIS  target  past  position 
display is switched to    T    (true past position) /   
  R    (relative past  position) whenever the button 
is clicked. 
This  setting  is  switched  together  with  the  target 
vector display true / relative switching. 
 
Past position display interval 
switching 
The  past  position  display  interval  is  switched 
whenever the button is clicked. 
Past position display interval unit 
switching 
The past position display interval unit is switched 
whenever the button is clicked. 
 min   NM 
 min  
 
AIS On / Off 
The AIS display is switched to On / Off whenever 
the button is clicked. 
 
Tracked target symbol display On / 
Off 
The  tracked  target  symbol  display  is  switched to 
On / Off whenever the button is clicked. Use this 
function to avoid confusion with the AIS symbol. 
 
AIS target symbol display On / Off 
The AIS target symbol display is switched to On / 
Off  whenever  the  button  is  clicked.  Use  this 
function  to  avoid  confusion  with  the  tracked 
target symbol. 
 
Association On / Off 
The  tracked  target  /  AIS  target  association  is 
switched  to  On  /  Off  whenever  the  button  is 
clicked. 
 
AIS filter mode switching 
The AIS filter is switched whenever the button is 
clicked. 
 Range   Sector  Zone     Range