Humminbird 4089901 Power On the Unit, How Sonar Works, How GPS Works, What’s On the Sonar Display, Views, Introduction to Navigation

Table of Contents
Power On the Unit	1
How Sonar Works	2
DualBeam Sonar ......................................	................................................................ 4
How GPS Works	5
What’s On the Sonar Display	6
Understanding the Sonar Display ............................................................................	8
Real Time Sonar (RTS™) Window ............................................................................	8
Freeze Frame and Active Cursor...............................................................................	9
Bottom Presentation..............................................................................................	10
Views	12
Sonar View ............................................................................................................	14
Sonar Zoom View ..................................................................................................	15
Big Digits View ......................................................................................................	16
Bird’s Eye View ......................................................................................................	17
Chart View..............................................................................................................	18
Chart/Sonar Combo View........................................................................................	19
View Orientation....................................................................................................	20
Viewing Cartography ............................................................................................	20
Introduction to Navigation	23
Waypoints, Routes, and Tracks .............................................................................	23
Save, Edit, or Delete a Waypoint ...........................................................................	25
Navigate to a Waypoint or Position ........................................................................	27
Add a Waypoint Targetor Trolling Grid ..................................................................	28
Save, Edit, or Delete a Route .................................................................................	29
Save or Clear a Current Track.................................................................................	30
Edit, Delete, or Hide Saved Tracks .........................................................................	30
Add Maps to YourFishfinder .................................................................................	31
Export Navigation Data............................................................................................	32

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