Furuno CH-250 Operator's Manual page 48

Horizontal/strata display
Press the key to display the horizontal/strata display.
Cursor position
data
→12
↓ 10
B133˚
+
Own ship
marker
Train
position
Color bar
for strata
display
Cursor
The horizontal display appears in the main window; the strata display in the sub window. The
strata picture shows bottom undulations in different colors. This is useful in bottom trawling to
avoid projections which may damage the net.
Coverage for the horizontal mode is 360° picture, and for the strata display it is maximum 90°
from port to 90° starboard.
The strata display may be adjusted with the [RANGE] and [SECTOR] controls. Press the
[MAIN/SUB] key to select the main or sub window. The message MAIN WINDOW
CONTROLLABLE or SUB WINDOW CONTROLLABLE appears with each pressing of the key.
A red cursor appears in the sub window when it can be controlled.
2-30
Horizontal Display
(main display)
Figure 2-29 Horizontal/strata display
Tilt angle
Tilt angle indicator
Range
R 40 m
30
T 40˚
25
34° 12. 343' N
134° 34. 213' W
CSE 357˚ SPD
PORT
-90°
0°
Heading
Strata Display
(sub window)
Interference rej. ON
Target lock indicator
Transducer status
indicator
Position in latitude*,
longitude*
9.9 kt
Course*, speed*
STBD
Number of lines increases
by one with each train.
Top line is latest; bottom
line is oldest.
* Requires appropriate
sensor input.
+90°