Dual Frequency Display; Zoom Display - Furuno FCV-1900 Operator's Manual

1.4.2

Dual frequency display

The low frequency echo appears on the left; the high frequency echo on the right. This
display is useful for comparing underwater conditions with two different frequencies.
1 1 1
x x x
LF: 2.0
Low frequency
47.6 47.6
m m
Note: The dual frequency and zoom display are divided vertically in the default setting.
You can divide the display horizontally (see page 1-38).
1.4.3

Zoom display

The zoom displays expand the specified area of the single frequency echo. Four
modes are available: bottom lock, bottom zoom, marker zoom and bottom discrimina-
tion. The default mode is bottom lock. For how to change the zoom mode, see page 1-
38.
Bottom lock display
The bottom lock display provides a normal picture on the right half of the screen and
a 16-9000 feet (default: 16 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 display, go to the [Range] menu (see
section 2.3).
Note 2: To show or hide the zoom marker, go to the [Display] menu (see page 1-38).
0/99 VRM 0.0
0 0
0.0 0.0
HF: 2.0
20 20 20 20
High frequency
40 40 40 40
60 60 60 60
80 80 80 80
Bottom lock display
1
x
5.3 5.3
LF_BL
5 5
Zoomed
4 4
fish echo
3 3
2 2
1 1
31.2 31.2
m m
0 0
Bottom displayed
flat
0 0
Freq. Beamwidth Resolution
Low Wide
High Narrow
Single freq. display
0/99
VRM 0.0
0 0
0.0 0.0
LF: 2.0
Zoom
marker 10 10
Fish echo
20 20
*
30 30
40 40
*: This section zoomed on
the left half.
1. OPERATION
Detection
Bottom tail
range
Low
Deep Long
High
Shallow Short
1-5