How To Select A Range Scale - Furuno 1835 Operator's Manual

True motion mode
Your ship and other objects in motion move
with their true courses and speed. All fixed tar-
gets, like landmasses, appear as fixed echoes
in ground stabilized TM.
When your ship reaches a point that is 75% of
the radius of the display, the position is reset.
The ship appears at 75% radius opposite to the
extension of the heading line on the display
center. You can manually reset your ship sym-
bol if you press the OFF CENTER key.
000
350
340
330
Heading
320
310
line
300
290
280
270
260
250
240
230
220
210
200
190
180
(a) True motion
is selected
Automatic reset of your ship marker in true motion mode
True view mode
The echoes move in real time depending on the change of the heading of your ship.
Heading line is at the top of the screen. When the heading signal is lost, this function
is not available and the display mode automatically changes to the head-up mode.
The [Wiper] is not available in this mode (see section 1.31).
North marker
1.8

How to Select a Range Scale

The selected range scale, range ring interval and pulselength are shown at the upper-
left corner on the screen. When an objective target comes closer, reduce the range
scale so that a target appears in 50-90% of the display radius.
Use the RANGE key to select range. Press the "+" part of the key to raise the range;
the "-" part to lower the range.
010
020
North
030
320
040
marker
310
050
300
060
290
070
080
280
090
270
100
260
110
250
120
240
130 230
140
220
150
210
160
170
(b) Your ship has reached a
point 75% of display radius
Heading line
The echoes move
depending on the
change of the heading
of your ship during
one sweep.
1. DESCRIPTION OF OPERATION
North marker
000
350 010
020
340
330
030
040
050
060
070
080
090
100
110
120
130
140
150
200
160
190
170
180
North marker
Heading line
000
350 010
020
340
330
030
320
040
310
050
300
290
280
270
260
250
240
230
130
220 140
210 150
200 160
190 170
180
(c) Your ship is automatically
reset to 75% of display radius
Heading line
060
070
080
090
100
110
120
1-9