12-10
12.7 True or Relative Vectors
Target vectors are displayed in relative or true mode. Own ship does not have a vector in the
relative mode. You may select true or relative vector on the ARP menu.
1. Press [MENU], [9], [3], [5] to display the ARP menu and select Page 1.
2. Press
[↑]
or
[↓]
to select the Vector Reference field.
3. Press
[←]
or
[→]
to select Relative or True as appropriate.
4. Press the [MENU] key several times to close the menu.
12.8 Vector Time
Vector time (or the length of vectors) can be set to 30 seconds, 1, 3, 6, 15 or 30 minutes and the
selected vector time is indicated on the screen.
The vector tip shows an estimated position of the target after the selected vector time elapses. It
can be valuable to extend the vector length to evaluate the risk of collision with any target.
Vector
Vector Time
(Ex. 30 min.)
Projected position
after 30 min.
Current position
of target
1. Press [MENU], [9], [3], [5] to display the ARP menu and select Page 1.
2. Press
[↑]
or
[↓]
to select the Vector Time field.
3. Press
[←]
or
[→]
to select appropriate vector time.
4. Press the [MENU] key several times to close the menu.
Summary of Contents for GD-280
Page 1: ...COLOR GPS PLOTTER GP 280 380 680 COLOR VIDEO PLOTTER GD 280 380 680...
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Page 260: ...A 2 2 World Time Chart...
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