Garmin GPSMAP 182C User Manual

Page 92

GPSMAP 182/182C Owner’s Manual

SING

ONAR

PTIONS

Depth Number—controls the efﬁciency of the digital depth update

rate. Fast Update updates more quickly and is recommended for

low-noise, deeper water (>50 ft). Auto is best for shallow water or

high noise areas, and produces a slower screen update. Use Auto

when you travel a wide variety of depths.

NOTE: If the unit is unable to track the bottom for any reason,

the digits in the depth window ﬂash on and off to alert you that

the unit is not tracking the bottom.

Main Menu—Sonar Tab

Scale—controls the depth Scale displayed vertically along the right

side of the graph. The depth Scale can be conﬁgured to display four

different ways: as an Overlay, in the Corners, with Basic, or No

Scale.

Color Bar—shows a gradient scale of the current Target Level

setting (see page 81).

Depth Scale (Overlay)

Color Bar

Flasher

Flasher—with the Flasher active, a graphic Flasher representation

is displayed on the far right side of the graph. This graphic Flasher

displays structure and bottom returns much the same as a true

Flasher. This feature is particularly useful when using ﬁsh symbols.