Eagle Electronics FishElite 642c - Manual (Page 53)

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The four Sonar Page display modes: Full Sonar Chart (left).
Split Zoom display mode (right).
Split Frequency mode (left) and Digital Data mode (right).
Full sonar chart mode.
Surface clutter
Structure
Bottom signal
Fish arches
Depth scale
Digital data
overlay
(depth &
temperature)
Surface signal
Zoom bar
FasTrack
bar graph