Humminbird 385ci, 385CI DI COMBO Power On, How Sonar Works, How GPS 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 [385ci]) ................................	4
Down Imaging™ Sonar (Down Imaging™ models only [385ci DI])..................................	5
Dual Beam Ice Transducer (optional-purchase XI 9 20 Ice Transducer only) ..................	6
How GPS Works	7
What’s on the Sonar Display	8
Understanding the Sonar Display .........................................................................	10
Real Time Sonar (RTS™) Window .........................................................................	10
SwitchFire™ ..........................................................................................................	11
Freeze Frame and Active Cursor.............................................................................	11
Instant Image Update............................................................................................	11
Bottom Presentation..............................................................................................	12
What’s on the Down Imaging™ Display
(Down Imaging™ models only [385ci DI])	14
Understanding the Down Imaging™ Display ........................................................	16
Interpreting the Display ..........................................................................................	16
Down Imaging™ Sensitivity...................................................................................	17
Freeze Frame and Active Cursor.............................................................................	17
Views	18
Sonar View ............................................................................................................	20
Sonar Zoom View ..................................................................................................	21
Split Sonar View ....................................................................................................	22
Big Digits View ......................................................................................................	23
Down Imaging™ View (Down Imaging™ models only [385ci DI]) ..................................	24
Circular Flasher View ............................................................................................	25
Snapshot and Recording View...............................................................................	30
Bird’s Eye View ......................................................................................................	36

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