ForwardScan image with Show zones active
1 Critical zone
2 Warning zone
Warning Forward Range and Warning Depth values are based on the selected Critical
Forward Range and Critical Depth values.
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Note: To receive Critical Zone alerts, enable ForwardScan alarm in the Alarm settings
dialog. For more information about enabling alarms, refer to Alarms.
Transducer angle
We recommend installing the transducer vertical to the waterline. In cases where that is not
possible, the Transducer Angle setting helps offset the difference between the transducer
angle and the waterline.
The angle can be adjusted from 0 (vertical) to 20 degrees.
Warning: Adjustments to the transducer angle value should be done with
caution. Large variations in the transducer angle value can distort depth
data, increasing the risk of striking underwater obstructions.
Depth offset
All transducers measure water depth from the transducer to the bottom. As a result, water
depth readings do not account for the distance from the transducer to the lowest point of
the boat (for example; bottom of the keel, rudder, or skeg) in the water or from the
transducer to the water surface.
Before setting the offset, measure the distance from the transducer to the lowest point of the
boat in the water or from the transducer to the water surface.
ForwardScan | NSS evo3 Operator Manual
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