¾
To remove a lost target:
• Select Acknowledge.
The GB40 removes the target from the
Radar screen and
deletes all the stored data for that target.
Radar: Vector settings
Each of the tracked targets has a vector that indicates the target's
speed and course.
The vector length indicates the target's expected position after a
specified time.
You can:
• change the vector reference setting to show the course and
speed in Relative or True Motion or to match the Motion Mode.
True vectors work only when GPS data (COG and SOG) is
available.
• change the vector length to show the estimated position after a
specific period of time.
¾
To change the vector settings:
• Display the Radar screen and main menu.
• Select
MARPA. If you can't see MARPA, select Return.
• Select
MARPA Options.
• The
Vector Reference button shows the current setting.
Select it to change the setting. There are three choices:
◦ Relative. The vector shows the target's course and speed
relative to your vessel.
◦ True. The vector shows the target's actual course and
speed. (It also shows a vector for your vessel with your
actual course and speed.)
◦ Match Motion Mode. The GB40 automatically sets the
vector reference to match your selected motion mode (True
or Relative).
• Select the new setting.
• The
Vector Length button shows the current setting. Select
it to change the setting. A list of time options appears.
• Select the new setting.
Radar |125
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