Chapter 3 Basic operation MDC-2200/2500 Series
0093125002-04 3-24
Other setting
1 Setup vector length MENU => NAV => VECTOR
Setting value : OFF, 30sec, 1min, 3min, 6min, 12min, 30min, 60min.
・ This item is to set vector length.
・ Vector is a line that represents course and speed of tracking target. Orientation of the line denotes
course while length of the line denotes speed.
For example when designates 1 min, the leading edge of vector points predicts position after 1min.
2 Vector mode MENU => NAV => TRUE/REL
Setting value : Relative, True
・This item is to set vector display mode: Relative or True.
・ True motion displays course and speed of the target actually moving, while relative motion displays
relative course and speed of the target sawn from the own ship’s position.
In true vector mode, vector orientation is true course of target and length is proportional to its speed.
Own ship vector is also displayed in true vector mode.
Relative vector display does not show real motion of the target but show relative motion to the own
ship.
Target with its vector orientated to own ship is dangerous ship.
Accordingly, true vector is used for grasping actual situation of target while relative vector to grasp
CPA of target.
3 CPA (Closest point to approach) setting MENU => ALARM => LIM CPA
Setting value : 0.0 to 19.9NM
・This item is to set closest range from own ship.
4 TCPA (Time to Closest point of approach) setting MENU => ALARM =>LIM TCPA
Setting value : 1 to 63min
・ This item is to set time to the closest range from own ship.
When the a target becomes into setting value of both CPA and TCPA area, it is regarded as
dangerou
△
s target and change to symbol mark. In addition, this symbol mark blinks in every 1
second and sounds alarm in every 0.5 second.
Alarm can be stopped by pressing [OFF] key.
5 Manual acquisition setup MENU => ATA/EPA => MAN ACQ NO
Setting value : 0 to 50
・ This item is to designate manually acquiring target number out of total 50 targets.
・ Pay attention when manual acquisition number is set to 50, auto acquisition is not available to use.
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