Furuno FCV-1900 - Bottom Zoom Display

1. OPERATION
1-6
Bottom zoom display
This mode expands bottom and bottom fish on the left-half window, and is useful for
determining bottom contour. When the bottom depth increases, the display automati-
cally shifts to keep the bottom echo at the lower part of the screen.
Marker zoom display
The marker zoom mode expands specified area of the normal picture to full vertical
size of the screen on the left-half window. You may specify the portion to expand by
operating the VRM (Variable Range Marker). The area between the VRM and zoom
marker is expanded. This mode is useful for determining the size of fish in the midwa-
ter.
30.5
30.5
m
m
0.0
0.0
0.0
0.0
0/99
x 1
Bottom zoom display Single freq. display
Bottom
Zoom marker
Zoom marker automatically follows
change in depth.
VRM 0.0
LF: 2.0LF_BZ
10
10
20
20
30
30
40
40
0
0
28
28
29
29
30
30
31
31
27
27
30.830.8
mm
20.020.022.522.5
0/99
x 1
Marker zoom display Single frew. display
Zoomed
fish echo
VRM
Fish
echo
Fish
echo
Zoom markerZoom marker
*
*: This section zoomed.
VRM 0.0
LF: 2.0LF_MZ
1010
2020
3030
4040
00
2121
2222
2323
2424
2020
2525