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5
Bottom-zoom display
This mode expands bottom and bottom fish
echoes two to five times to vertical size of the
screen, and is useful for determining bottom
hardness. A bottom displayed with a short
echo tail usually means it is a soft, sandy bot-
tom. A long echo tail means a hard bottom.
0
10
20
30
40
15
20
25
36.4
Normal
display
Zoom
marker
(yellow)
Bottom
Bottom-zoom display
Figure 1-10 Bottom-zoom display plus
normal display
Bottom-lock display
The bottom-lock display provides a com-
pressed normal picture on the right half of the
screen and a 5 or 10 meter (10 or 20 feet) wide
layer in contact with the bottom is expanded
onto the left half of the screen. This mode is
useful for bottom discrimination.
9.6
0
10
20
30
40
5
4
3
2
1
0
Fish
20.7
Bottom-
lock
display
Normal
display
Zoom marker (yellow)
Zoomed
fish
This section
is zoomed
Figure 1-11 Bottom-lock display plus
normal display
Note: The zoom marker is not displayed in
the default setting. It may be turned on in Sys-
tem menu 1. For further details see page 15.
Data display
This display provides navigation data in digi-
tal form. Date, time, position, course, speed,
depth, water temperature and waypoint data
can be shown. Requires nav data input and
appropriate sensors.
0
20
40
60
80
30
°
00. 065’N
130
°
00. 574’E
POS
143
°
15. 6kt
CSE SPD
69. 4
m 9. 3°C
DEP TMP
WP ABC
RNG 12nm
BRG 123. 4°
XTE 1. 23nm
Position
Course, speed
Depth,
temperature
Waypoint
Range to waypoint
Bearing to waypoint
Cross-track error
Figure 1-12 Data display