Furuno FR-1500 MARK-3 Series Radar Detector User Manual


 
-1.9-
Presentation mode, representative display
Description
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North
Heading
Marker
Heading Line
North-up modeIn the north-up mode, target pips
are painted at their measured distances and in their
true (compass) directions from own ship, north
bearing maintained up of the screen. The heading line
changes its direction according to the ship’s
heading.If the gyrocompass fails, the presentation
mode changes to head-up and the north marker
disappears. Also, the HDG readout shows xxx.x°. And
the message GYRO SIG MISSING appears in red at
the lower-right corner of the screen.
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North
Heading
Marker
Heading Line
True motion mode
Own ship and other moving objects move in
accordance with their true courses and speed. In
ground stabilized TM, all fixed targets, such as
landmasses, appear as stationary echoes. In the sea
stabilized TM without set and drift inputs, the
landmass can move on the screen.
When own ship reaches a point corresponding to
75% of the radius of the display, it is automatically
reset to a point of 75% radius opposite to the
extension of the heading marker passing through the
display center. Resetting can be made at any moment
before the ship reaches the limit by pressing the
[SHIFT]. Automatic resetting is preceded by a beep
sound.
If the compass fails, the mode is changed to the
head-up and the north marker disappears. The HDG
readout shows xxx.x° and the message GYRO SIG
MISSING appears in red at the lower-right corner of
the screen.
Target trail
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(a) True motion Is selected (b) Own ship has reached a
point 75% of display radius
(c) Own ship is automatically reset
to 75% of radius