Humminbird 345c, 345C DI Power On, How Sonar Works, What’s on the Sonar Display, What’s on the Down Imaging™ Display, Views

Table of Contents
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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