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How Sonar Works 1
DualBeam PLUS™ Sonar...................................................................................................................... 4
What’s On the Display 5
Views 7
Sonar View.............................................................................................................................................. 8
Understanding Sonar History............................................................................................................ 9
Real Time Sonar (RTS®) Window.................................................................................................... 10
Freeze Frame........................................................................................................................................ 10
Bottom Presentation .......................................................................................................................... 11
Sonar Zoom View................................................................................................................................ 13
200/83 kHz SplitSonar View .......................................................................................................... 14
Big Digits View ....................................................................................................................................15
Circular Flasher View.......................................................................................................................... 15
Key Functions 16
POWER/LIGHT Key ............................................................................................................................ 16
VIEW Key .............................................................................................................................................. 16
MENU Key ............................................................................................................................................ 17
4-WAY Cursor ControlKey ................................................................................................................ 17
EXIT Key ................................................................................................................................................ 18
Powering Up the Unit 18
The Menu System 19
Start-Up Options Menu 21
Normal Operation .............................................................................................................................. 21
Simulator ............................................................................................................................................ 22
System Status .................................................................................................................................... 23
Sonar X-Press™ Menu 24
Sensitivity.............................................................................................................................................. 25
Upper Range
(Advanced: Sonar, SplitSonar, Big Digitsand CircularFlasher Viewsonly).............................. 26
Lower Range ........................................................................................................................................ 27
Chart Speed.......................................................................................................................................... 28
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