Garmin GPSMAP 4008 Owner's Manual page 92

Sonar
Split-zoom Sonar View
The split-zoom sonar view shows a full-view graph of sonar readings and a magnified portion of that graph on
the same screen.
From the Home screen, select Sonar > Split Zoom.
➊
➋
➌
➍
➎
Depth, temperature, and water speed
➊
Zoomed depth scale
➋
GPS speed and GPS heading
➌
Zoom level
➍
88
Split-zoom Sonar View
➏
Transducer frequency
➎
Zoom window
➏
Range
➐
GPSMAP 4000/5000 Series Owner's Manual
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