More Options; Heading Extension - Simrad NSO evo3S MPU Operator's Manual

Depth
Controls depth range. Depth range is set to auto mode by default.
Forward range
Controls the forward looking search range. Maximum Forward range is 91 meters (300 feet).
Noise rejection
Filters out signal interference and reduces on-screen clutter.
Show zones
Displays warning zones (yellow) and critical zones (red) on the screen. Refer to "Critical forward
range and Critical depth" on page 89.

More options

Pause
Pauses the image, allowing you to examine the image in detail.
The pause function stops the echosounder from pinging. The system is not collecting data
when paused in this manner.
Palettes
Used for selecting the image's color palette.
History ratio
Controls how much sounder history is shown behind the boat. The higher the ratio, the more
history will be shown.
Point data
By default, ForwardScan only shows the bottom. Select this option to specify to view no
sounder data points, all data points, or only points (objects) in the water column.
Depth lines
Displays lines on the screen that make it easier to quickly estimate depth and the underwater
objects.
Recording ForwardScan data
Displays the record dialog. ForwardScan log data can be recorded by selecting the correct
file format (sl3) in the record dialog. For more information, refer to "Recording log data" on page
66.

Heading extension

Use the chart heading extension to monitor ForwardScan on the chart panel. Heading
extension colors are based on the ForwardScan alarm values.
88
ForwardScan| NSO evo3S MPU Operator Manual