Lowrance electronic HDS-5 Water Speed Calibration, To set Keel Offset, To calibrate Water Speed

Settings

precise depth reading.

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 –3.5 feet.

NOTE: To input a keel offset that accounts for the distance from the transducer to the water surface, you will enter a posi- tive number. If the transducer is 1.5 feet below the waterline, it will be input as +1.5 feet. That will give you a more precise depth reading.

To set Keel Offset:

1.Highlight the Keel Offset text box on the Installation menu and press enter.

2.Use the keypad to enter the desired keel offset. Select OK and press enter.

Water Speed Calibration

When there are differences in speed data, Water Speed Calibration calibrates data from a paddlewheel with GPS data. That ensures the

accuracy of speed data from your paddlewheel.

To calibrate Water Speed:

Water speed

1. Select the Water Speed Calibration text box calibration dialog box from the Installation menu and press enter.

The Water Speed Calibration keypad will appear.

2.Use the arrow keys to enter the percentage difference in speed data. Select OK and press enter.

NOTE: If the paddlewheel is reading a slower speed than the GPS unit, you will input a positive (+) percentage. Conversely, a negative (–) percentage will be entered if the paddlewheel is reading a faster speed than the GPS unit.

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