Simrad NSO evo3S MPU Operator's Manual page 69

B
Zoom bars
The Zoom mode presents a magnified view of the sounder image on the left side of the
panel.
By default, the zoom level is set to 2x. You can select up to 8x zoom.
The range zoom bars on the right side of the display shows the range that is magnified. If you
increase the zooming factor the range is reduced. You see this as reduced distance between
the zoom bars.
Move the zoom bars up/down on the image to view different depths of the water column.
Bottom lock
The bottom lock mode is useful when you want to view targets close to the bottom. In this
mode, the left side of the panel shows an image where the bottom is flattened. The range
scale is changed to measure from the seabed (0) and upwards. The bottom and the zero line
are always shown on the left image, independent of the range scale. The scaling factor for
the image on the left side of the panel is adjusted as described for the Zoom option.
Palettes
Used for selecting the image's color palette.
Temperature graph
The temperature graph is used to illustrate changes in water temperature.
When toggled on, a colored line and temperature digits are shown on the image.
Depth line
When toggled on, a line is shown on the bottom surface. The depth line makes easier to
distinguish the bottom from fish and structures.
Amplitude scope
The amplitude scope is a display of an echo sounding on the panel. The strength of the
actual echoes are indicated by both width and color intensity.
Enhanced and horizontal amplitude scope indicators
The enhanced and horizontal amplitude scope show 2 indicators:
A
Enhanced amplitude scope image
B
Horizontal amplitude scope image
C
Cross indicator - indicates where in the echo sounding the bottom is located.
D
Threshold line - indicator of the current gain. It tells you the amplitude of the return
echo displayed on the panel. The gain setting helps to distinguish return echoes
between echo targets and noise.
Echosounder | NSO evo3S MPU Operator Manual
69