Lowrance X102C Operation Instructions Manual page 42

Pages Menu showing some Sonar display options
(left, dual-frequency menu; right, single-frequency menu).
The Full Sonar Chart is the main display option. This is a "cross-
section" view of the water column beneath the boat. The chart moves
across the screen, displaying sonar signal echoes that represent fish,
structure and the bottom.
Digital data
overlay
(depth &
temperature)
Fish arches
Structure
Sonar Page, showing full sonar chart mode.
Surface signal
Bottom signal
38
Surface clutter
Depth scale
In FasTrack, fish
arches show as
horizontal bars.
Zoom bar
FasTrack
bar graph