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•Heading — select the reference used in calculating heading information for the the following Advanced data fields: Bearing, Compass, Course, and Track (see pg.
Sonar Tab
Allows you to set up initial settings and calibrations. The following settings are available:
•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 readings on the unit.
•Depth Number — controls the efficiency of the digital depth update rate. ‘Fast Sonar Update’ updates quicker and is recommended for
•Automatic Scroll Speed Limit — automatically adjusts the Scroll rate (see pg. 14) to the speed of your vessel (if equipped with a speed sensor or receiving GPS NMEA input). Entering your maximum cruising speed will produce a 100% scroll rate when you reach that speed. One half of that speed will produce a 50% scroll rate, etc.
•Keel Offset — allows you to offset the surface reading for the depth of a keel in order to measure depth from the bottom of your keel instead of from the transducer’s location. Enter a positive number to offset for a keel. It is also possible to enter a negative number to compensate for a large vessel that may draw several feet of water. The ‘Keel Offset’ will be reflected in the depth reading.
•Transducer Type — does not appear in Simulator Mode. Allows you to specify what type of trans- ducer you are using. ‘User Defined’ is reserved for future use. Do not use unless instructed.
•Calibrate Water Speed — this will only appear if you are using a
Unit Operation
Main Menu Options
Main Menu - Sonar Tab
Transducer at Surface
Enter (+) positive Keel Offset number to show depth from bottom of keel
Transducer at Bottom of Keel
Enter
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