Furuno FR-2105 Radar Detector User Manual


 
-1.
11-
Presentation mode,
representative display
Description
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Heading Line
North marker
Heading Marker
Head-up mode
A display without azimuth stabilization in which the line
connecting the center with the top of the display indicates
own ship’s heading.
The target pips are painted at their measured distances
and in their directions relative to own ship’s heading.
A shore line on the bearing scale is the north marker
indicating compass north. A failure of the compass input
will cause the north marker to disappear and the readout
to show asterisks (***.*) and the message GYRO appears
in red at the lower-right corner of the screen.
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Heading Line
North marker
Heading Marker
Course-up mode
An azimuth stabilized display in which a line connecting
the center with the top of the display indicates own ship’s
intended course (namely, own ships previous heading just
before this mode has been selected).
Target pips are painted at their measured distances and in
their directions relative to the intended course which is
maintained at the 0-degree position while the heading line
moves in accordance with ships yawing and course
change. This mode is useful to avoid smearing of picture
during course change. After a course change, press the
[CU, TM RESET] key to reset the picture orientation if you
wish to continue using the course-up mode. The heading
line gets back to scale zero.
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North marker
earing scale rotates with a compass signal
Heading Marker
Head-up TB (True Bearing) mode
Radar echoes are shown in the same way as in the
head-up mode. The difference from normal head-up
presentation lies in the orientation of the bearing scale.
The bearing scale is compass stabilized. That is, it rotates
in accordance with the compass signal, enabling you to
know own ships heading at a glance.
This mode is available only when the radar is interfaced
with a gyrocompass.
If the compass fails, the bearing scale returns to the state
of head-up mode.