Garmin GPSMAP 740 Owner's Manual page 76

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
➏
➐
➊
➌
➎
➐
Split-frequency Sonar View
In the split-frequency sonar view, the left side of the screen shows a full-view graph of 200 kHz frequency
sonar data, and the right side of the screen shows a full-view graph of 50 kHz frequency sonar data.
NoTe: The split-frequency sonar view requires the use of a dual-frequency transducer.
From the Home screen, select Sonar > Split Frequency.
Changing from One Sonar View to a Different Sonar View
1. From the Home screen, select Sonar.
2. Select a sonar view.
3. Select Menu > Change Sonar.
4. Select a different sonar view.
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Split-zoom Sonar View
Depth, water speed, and unit voltage
GPS speed and GPS heading
Range
Transducer frequency
Split-frequency Sonar View
Zoomed depth scale
➋
Zoom window
➍
Zoom window
➏
GPSMAP 700 Series Owner's Manual
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