Lowrance HDS Live Operator's Manual page 75

Overlay DownScan
When a DownScan capable transducer is connected to your system,
you can overlay DownScan images on the regular Sonar image.
When overlay DownScan is activated, the Sonar panel menu
expands to include basic DownScan options.
Temperature graph
The temperature graph is used to illustrate changes in water
temperature.
When toggled on, a colored line and temperature digits are shown
on the Sonar image.
Depth line
A depth line can be added to the bottom surface to make it easier
to distinguish the bottom from fish and structures.
Amplitude scope
The Amplitude scope is a display of real-time targets as they appear
on the panel. The strength of the actual targets is indicated by both
width and color intensity.
Preview
You can have all available sonar history shown at the top of the
sonar screen. The Preview bar is a snapshot of available sonar
history. You can scroll through sonar history by dragging the
preview slider horizontally. By default, Preview is turned on when
the cursor is active.
Fish ID
You can select how you want the fish targets to appear on the
screen. You can also select if you want to be notified by a beep
when a fish ID appears on the panel.
75
Sonar | HDS Live Operator Manual