Garmin 100 BLUE Calibrations Tab, Unit Operation, Setup Menu: Calibrations Tab, Water Type, Keel Offset, Calibrate Speed, To set a Keel Offset:, To calibrate the Speed:

Calibrations Tab

The ‘Cal’ tab contains the ‘Keel Offset’ and ‘Water Type’ setups, and a ‘Calibrate Speed’ function for use when a speed sensor is installed.

Keel Offset

The ‘Keel Offset’ field allows the user to offset the depth reading for a keel or for the draw on a larger vessel.

To set a Keel Offset:

1.Highlight the ‘Cal’ tab on the Setup Menu.

2.Highlight the ‘Keel Offset’ field and press ENTER.

3.Use the Arrow Keys enter a new offset, then press ENTER to accept.

Water Type

Since sound waves travel through fresh and salt water at different rates, it is necessary to select the ‘Water Type’ to ensure accurate depth readings.

To change the Water Type:

1.Highlight the ‘Cal’ tab on the Setup Menu.

2.Highlight the ‘Water Type’ selection field and press ENTER.

3.Choose ‘Fresh’ or ‘Salt,’ then press ENTER to accept the selection.

Calibrate Speed

The ‘Calibrate Speed’ field will be enabled when a speed sensor is installed or when you are in simulator mode. This allows you to calibrate the Fishfinder speed to your boat’s speedometer or to your GPS speed.

To calibrate the Speed:

1.Highlight the ‘Cal’ tab on the Setup Menu.

2.Highlight the ‘Calibrate Speed’ button and press ENTER.

3.Run your boat, noting your top speed. Stop the boat and press ENTER.

4.With the speed field highlighted, press ENTER and input your top speed. Highlight ‘OK’ and press ENTER to finish the calibration.

Unit Operation

Setup Menu: Calibrations Tab

Transducer at Surface

Enter (+) positive number to show

depth from bottom of keel	Transducer at Bottom of Keel
	Enter (-) negative number to show
	depth from surface
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