JMA-9172-SA Instruction Manual > 4.MEASUREMENT OF RANGE AND BEARING > 4.1 USE OF NAVIGATION TOOLS
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4.1 USE OF NAVIGATION TOOLS
The system is equipped with the navigation tools below.
Cursor: Specifies an arbitrary point, and measures the range and bearing
from the own ship.
Range Rings: Displays concentric circles with own ship's position as the center at
specified intervals, and the rings are used as rough guides for range
measurement.
Electronic Bearing Line
(EBL1/2):
Displays a straight line for specifying an arbitrary bearing, and
measures the bearing from the own ship.The process unit is
equipped with two electronic bearing lines.
Variable Range Marker
(VRM1/2):
Displays a circle for specifying an arbitrary range, and measures the
range from the own ship.The process unit is equipped with two
variable range markers.
Parallel Index Line (PI): Displays straight lines at even intervals, and the lines are used as
rough guides for complex measurement or ship courses.
EBL Maneuver: Displays the course by steering the own ship, and it is used as a
rough guide for ship maneuvering.
Marker: Stores the latitude and longitude where the own ship was at the
point of storing the markers, and shows an anchor symbol on the
radar display. When the own ship has moved, the system displays
the range and bearing to the position.
EBL/VRM/PI Operation with
Cursor (Cursor AUTO):
Operates EBL, VRM, or PI on the radar display by using the cursor.
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