CVS-842/852/843 Chapter 7
Operation Manual Functional Registration
93132692-00 7-9
7.2.3.1 BTM/NORM display
This mode of image is a combination of normal and BTM (Bottom Zoom) images. In the BTM image,
the seabed echo is shown flat and fixed to the bottom of the screen with fish echoes shown within the
depth specified by the user.
7.2.3.2 BD/NORM display
This mode of image is a combination of normal and BD (Bottom Discrimination) images. In the BD
image, the seabed image is shown flat with its upper and lower parts shown at a specified depth. The
image area beneath the seabed is 1/4 of the normal depth range and the image above the seabed is
determined by the setting in the Menu => Display => Zoom Range.
7.2.3.3 ZOOM/NORM image
This mode of image is a combination of normal and ZOOM (Referenced zoom) images. The ZOOM
image shows a zoomed image of a certain depth range specified by the user, referenced to the depth
set by the green VRM.
Zoom range bar (Orange)
The seabed echo
Specified depth
14:22:562002/04 (Wed)
000 0
Shift
Image Speed 1/1
50
100
150
200
150
Nor
50
0
ZM
BTM image
Normal image
Figure 7.10 BTM/NORM display screen layout
Zoomed depth range
Zoom range bar
(Orange)
Starting depth set by
the VRM (Green)
高
14:22:56
2002/09/04 (Wed)
000 0
Shift
Image Speed 1/1
ZM
50
100
150
200
150
Nor
100
150
５
５
０
０
50
ZOOM image Normal image
Figure 7.12 ZOOM/NORM image
Figure 7.11 BD/NORM image
Zoom range bar (Orange)
Seabed
Zoomed range
Normal image
１４：２２：５６
2001/05/23（水）
Image Speed 1/1
ZM
５
５
０
０
１
１
０
０
０
０
１
１
５
５
０
０
２
２
０
０
０
０
１
１
５
５
０
０
１
１
０
０
５
５
０
０
５
５
０
０
１
１
５
５
０
０
００００
Shift
Displays 1/4 of the depth range selected.
The display area beneath the bottom
in the Bottom Discrimination display
BD image
2002/09/04(wed)
Nor
To Next Page
Loading...
