Furuno FSV-30, Operator'S Manual

Page: 143 / 190

8. OTHERS MENU
8-7
HEADING MARK:
The heading mark is a dashed line which indicates the
heading in all presentation modes. It extends from own ship position to the outer
edge of the display and appears at zero degrees in the head-up mode. It
changes the orientation depending on ship’s orientation in the north-up,
course-up and true motion modes.
Heading mark
Heading mark
RANGE RINGS:
The range rings are the dotted line circles about own ship, and
they provide an estimate of the range to a target. Rings appear every distance of
1/2 or 1/4 of the range depending on menu setting.
100
R200
Range rings
BEARING SCALE:
The bearing scale is the concentric solid circle at the edge of
the display. It provides an estimate of the bearing to a target.
N
S
E W
Bearing scale
SHIP’S TRACK:
Traces ship’s movement with a solid line. When the capacity of
the track memory is exceeded the earliest track is automatically erased to trace
new track. Requires ships speed and course data.