Advanced Options; More Options - Lowrance HDS Live Operator's Manual

Frequency
DownScan can be used at 800 kHz or 455 kHz. 800 kHz provides the
highest resolution with less range. 455 kHz has the best range, but
with lower resolution.
Contrast
Determines the brightness ratio between light and dark areas of the
screen.
Ú Note:
We recommend that you use the auto contrast option.
Palettes
Used for selecting the image's color palette.

Advanced options

Surface clarity
Wave action, boat wakes and temperature inversions can cause
onscreen clutter near the surface. The surface clarity option reduces
surface clutter by decreasing the sensitivity of the receiver near the
surface.

More options

Stop Sonar
When selected, stops the sonar from pinging. Use the option
anytime you want to disable the sonar but not power off the unit.
FishReveal
Select FishReveal to display fish arches in the image.
When FishReveal is enabled, the menu expands to include
FishReveal options.
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DownScan | HDS Live Operator Manual