Furuno FR-1710 User Manual Page 20

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  • TROUBLESHOOTING
  • BOOKMARKS
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1-6
1.10 Presentation Modes
This radar has the following presentation
modes: Head-up, Head-up/TB, Course-up,
North-up, and True Motion.
Selecting presentation mode
Press the [MODE] key on the panel at the
right side of the display unit. Each time the
[MODE] key is pressed, the presentation
mode and mode indication at the upper-left
corner of the screen change cyclically.
Note: When a failure occurs in the gyrocom-
pass, the radar will automatically be switched
to unstabilized presentation mode. All com-
pass related data will read Relative values.
Loss of Compass Signal
When the compass signal is lost, the buzzer
sounds once, the presentation mode becomes
head-up and the compass readout shows
xxx.x°. After restoring the compass signal,
press the [MODE] key to display the compass
readout. Readjust the compass readout as
shown on page 1-4. Also HDG SIGNAL
MISSING appears at the bottom of the screen.
Presentation mode,
representative display
Description
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 dis-
tances and in their directions relative to own ship’s
heading.
A short 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 HDG readout to show asterisks xxx.x°.
000
010
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Heading
line
North
marker
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 ship’s heading at a glance.
This mode is available only when the radar is inter-
faced with a compass.
If the compass fails, the bearing scale returns to the
state of head-up mode.
The bearing scale rotates with
a compass signal.
000
010
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090
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North
marker
Heading
line
Heading
marker
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