Furuno FCV-288, Operator'S Manual

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1. OPERATION
3
1.4.2 Dual frequency display
The 50 kHz picture appears on the left; the
200 kHz picture on the right. This display is
useful for comparing the same picture with
two different frequencies.
1.4.3 Zoom displays
Zoom mode expands chosen area of the sin-
gle frequency picture. Three modes are avail-
able: bottom lock, bottom zoom and marker
zoom. The default zoom mode is bottom lock.
Bottom lock display
The bottom lock display provides a normal
picture on the right half of the screen and a
16-600 feet (default: 30 feet) wide layer in
contact with the bottom is expanded onto the
left half of the screen. This mode is useful for
detecting bottom fish.
Note 1: To adjust the range of the zoom dis-
play, go to the [Range] menu
(see section 2.2).
Note 2: To show or hide the zoom marker, go
to the [Display] menu.
Bottom zoom display
The bottom zoom mode expands bottom and
bottom fish on the left-half window. This mode
is useful for tracking bottom contour. When
the bottom depth increases (or decreases),
the display automatically shifts to keep the
bottom echo at the lower part of the screen.
Depth
Display
mode
Picture advance
speed
Color
bar
Alarm
icon
x1
*Minute marker ( two different color bars in 1 min.)
Range
Depth scale
0.0
Zero line
20
40
60
36.8
ft
11.1
kt SOG
8.2
°
C
Bottom
Fish
echo
Data box
Gain
AUTO_R LF L:AF
*
0
50 kHz
picture
200 kHz
picture
36.8
ft
20
40
60
20
40
60
x1 AUTO_R L:AF LF/HF H:AF
0.0
Freq.
(kHz)
Beamwidth Resolution
Detection
range
Bottom
tail
50
200
Wide
Narrow
Low
High
Deep
Shallow
Long
Short
* This section zoomed on the left half.
Bottom displayed flat
Zoomed
fish
Fish
21.7 21.7
m m
*
Single freq. display Bottom lock display
AUTO_R BL-LF L:AF
x1
0.0
40
50
60
20
40
60
0
Zoom Marker
Zoom marker
Zoom marker automatically follows change
in depth.
Single freq. display Bottom zoom display
Bottom
45.2
ft
x1
0.0
40
50
60
20
40
60
0
AUTO_R BZ-LF L:AF