Advanced Settings

Zoom Depth (While Zoomed)—available only when you are using a 2x or a 4x Zoom. By default, the Zoom Depth is set to Auto and automatically adjusts with the depth. You can adjust this setting to zoom in at a specific depth.

Span (While Zoomed with Bottom Lock)—While using Bottom Lock, this option replaces the Range option. Adjust this setting just as you would the Range setting to expand or contract the zoomed distance from the bottom.

Depth Line—turn on the depth line to quickly reference a specific depth on the Full Screen, Split Zoom screen, or Split Freq screen. While viewing a screen showing the Depth Line, press up or down on the ROCKER to move the line.

A-Scope(Dual Frequency Transducer)—vertical flasher that appears along the right side of the screen. The A-Scope indicates structure and bottom returns much like the Flasher screen (page 18). The horizontal width of a signal in the A-Scope indicates the strength of the signal.

Resetting the Odometer

If you are using a speed sensing transducer, an odometer is available on the Numbers screen and the Flasher screen that tracks the distance you travel.

To reset the odometer:

1.Press MENU.

2.Highlight Reset Odometer, and press SELECT.

3.Highlight Yes, and press SELECT.

Setting the Temp Log Duration and Scale

On Temp Log screen, press MENU to view advanced options. Duration—set the scope of time along the bottom of the graph. Scale—set the temperature span along the right side of the graph.

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Fishfinder 400C Owner’s Manual