Furuno FR-1500 MARK-3 Series User Manual page 23

Presentation mode, representative display
North
000
350
340
330
320
310
300
290
280
+
270
260
250
240
230
220
210
200
190
180
North
000
350
340
330
320
310
300
290
280
+
270
260
250
240
230
220
210
200
190
180
350
340
330
320
310
300
290
280
270
260
250
240
230
220
210
200
(a) True motion Is selected
Heading Line
010
020
030
Heading
040
Marker
050
060
070
080
090
100
110
120
130
140
150
160
170
Heading Line
010 Heading
020
030
Marker
040
050
060
070
080
090
100
110
120
130
140
150
160
170
000
010
020
030
040 320
050 310
060 300
070 290
080 280
+ 090 270
100 260
110 250
120 240
130 230
140 220
150
160
190 170
180
(b) Own ship has reached a
point 75% of display radius
Description
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.
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.
000
350 010
Target trail
340 020
330 030
040
050
060
070 290
080 280
+ 090 270
100 260
110 250
120
130
140
210 150
200 160
190 170
180
-1.9-
000
350 010
340 020
330 030
320 040
310 050
300 060
070
080
+ 090
100
110
240 120
230 130
220 140
210 150
200 160
190 170
180
(c) Own ship is automatically reset
to 75% of radius