Chapter 5
CVS-833/833C
Basic Operation
NOTE:
The normal image is not available in this mode.
5.5.5 Displaying partially zoomed depth display
This mode allows showing a partially zoomed display, referenced to a specified depth from which the
zooming range starts.
1. Set up a zooming range in Sub Menu 1. Refer to Para. 6.4.1 “Zooming range” for detail.
2. Set up a reference point from which the zooming range starts. To do so, open Sub Menu 1
“Zooming starting depth” and specify the depth.
3. Turn the MODE switch to NORM/ZOOM either in HIGH or LOW frequency.
5.5.6 Displaying mix images
Reflection from a school of fish is sensitive to the ultrasonic frequency i.e. the higher the frequency, the
stronger the reflection, and vice versa. Utilizing this characteristic, detection of small fish like
anchovy/sardines can be made possible by combining and processing signals of high and low
frequencies reflected from the same object. The MIXED image can be selected from COMPARISON or
SUBTRACTION. To use this function;
1. Select COMPARISON or SUBTRACTION from Sub Menu 4. (Refer to Para 6.7.5 for detail)
2. Set the MODE control to MIX.
5.6 Registering the depth to the range numbers
If you need to change the default depth range as assigned to range scale number (1 to 8), use the
following procedure:
1. Press the MENU key.
2. Press the UP or DOWN arrow key to select Initial Menu 2 DEPTH RANGE PRESET.
3. Press the RIGHT arrow key to select Sub Menu 2 DEPTH RANGE PRESET.
Vertical split
Horizontal split
Zoomed depth range is displayed in an orange bar.
Horizontal split
Vertical split
Zoom start position
Zoom range
Figure 5.10 Partially zoomed depth display
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