To adjust sensitivity in auto mode:
1.From the Sonar Page, press MENU↓ to AUTO SENSITIVITYENT.
2.Highlight SENSITIVITY and press ENT.
2.The Sensitivity Control Bar appears. Press ↓ to decrease sensitivity; press ↑ to increase sensitivity. When it's set at the desired level, press
EXIT.
At left, Sonar Menu with Sensitivity command selected. At right, the
Sensitivity Control Bar.
To adjust sensitivity in manual mode:
1.First, turn off Auto Sensitivity: from the Sonar Page, press MENU↓
to AUTO SENSITIVITYENT.
2.Press ↑ to SENSITIVITYENT and the Sensitivity Control Bar appears. Press ↓ or ↑ to pick a different sensitivity setting. When it's set at the desired level, press EXIT.
Keel and Waterline Offset
Water depth is measured from the transducer to the bottom, which not only diminishes the accuracy of depth readings, but also could present a problem for vessels with a large keel. The Offset feature can correct both issues via Keel Offset and Waterline Offset.
Keel Offset
You can protect your boat’s keel from obstructions by changing unit settings to display water depth from the keel to the bottom instead of from the transducer to the bottom. Before setting keel offset, measure the distance from the transducer to the lowest part of the keel. If, for example, the keel is 3.5 feet below the transducer, it will be input as
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