Humminbird 4089901 Marine GPS System User Manual


 
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 Target or 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 Your Fishfinder .................................................................................. 31
Export Navigation Data............................................................................................ 32
Table of Contents
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