Furuno GP-1850WF GPS Receiver User Manual


 
2. VIDEO SOUNDER OPERATION
2-3
Selecting sounder display mode
There are five display modes from which to
choose: normal, marker zoom, bottom zoom,
bottom lock and A-scope. To select a display,
press the SNDR FUNC soft key on the
normal sounder display to show the sounder
function window, and press or to select
the display. Press the RETURN soft key to
close the window.
SOUNDER FUNCTION
NORMAL
MARKER ZOOM
BOTTOM ZOOM
BOTTOM LOCK
A-SCOPE
Sounder function window
Marker zoom display
This mode expands a selected area of the
normal sounder 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), which
you can shift with or . The area between
the VRM and zoom marker is expanded.
200k
202
0
50
100
150
90.0
100
200
150
Marker zoom
display
Fish school
Normal
sounder
display
Fish
school
This part
is zoomed.
Zoom marker
VRM
GPS3D
200
Marker-zoom display plus
normal sounder display
Bottom-zoom display
This mode expands bottom and bottom fish
echoes to vertical size of the screen, and is
useful for observing the bottom shape.
200k
0
50
100
150
40.0
160
100
120
140
180
Bottom zoom
display
Bottom
Normal
sounder
display
Zoom
marker
DGPS3D
162
200
Bottom-zoom display plus
normal sounder display
Bottom-lock display
The bottom-lock display provides a
compressed normal picture on the right half
of the screen and a 3 or 6 meters (10 or 20
feet) wide layer in contact with the bottom is
expanded onto the left half of the screen.
200k
34.0
68.3
0
2
4
6
This part
is zoomed.
Fish
school
Bottom-lock
display
Fish
school
Zoom
marker
Normal
sounder
display
GPS3D
Bottom
display flat
0
40
50
30
20
10
Bottom-lock display plus
normal sounder display
Note: The zoom marker is not displayed in
the default setting. It may be turned on
in the DISPLAY SETUP2 menu. For
further details see “ZOOM MARKER”
on page 11-5.