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Power On 1
How Sonar Works 2
DualBeam PLUS™ Sonar (DualBeam PLUS™ models only [345c])................................ 4
Down Imaging™ Sonar
(Down Imaging™ models only [345c DI]) ................................ 5
Dual Beam Ice Transducer
(optional-purchase XI 9 20 Ice Transducer only).................. 6
What’s on the Sonar Display 7
Understanding the Sonar Display .......................................................................... 9
Real Time Sonar (RTS™) Window .......................................................................... 9
SwitchFire™ .......................................................................................................... 10
Freeze Frame and Active Cursor .......................................................................... 10
Instant Image Update............................................................................................ 10
Bottom Presentation.............................................................................................. 11
What’s on the Down Imaging™ Display
(Down Imaging™ models only [345c DI])
13
Understanding the Down Imaging™ Display........................................................15
Interpreting the Display..........................................................................................15
Down Imaging™ Sensitivity ..................................................................................16
Freeze Frame and Active Cursor ............................................................................16
Views 17
Sonar View ............................................................................................................ 19
Sonar Zoom View .................................................................................................. 20
Split Sonar View .................................................................................................... 21
Big Digits View ...................................................................................................... 22
Down Imaging™ View
(Down Imaging™ models only [345c DI])................................ 23
Circular Flasher View ............................................................................................ 24
Down Imaging™/Sonar Combo View
(Down Imaging™ models only [345c DI]) ........ 29
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