Garmin colorado 400c User Manual

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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 

page 18

). The 

horizontal width of a signal in the A-Scope indicates the strength of 

the signal.

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.

1.  Press

MENU.

2.  Highlight

Reset Odometer, and press SELECT.

3.  Highlight

Yes, and press SELECT.

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.