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Table of Contents 
Introduction.......................................................................................1 
Specifications: FishEasy 245DS & SeaFinder 245DS .......................1 
How Sonar Works.................................................................................3 
Preparations .........................................................................................4 
Installation ...........................................................................................5 
Recommended Tools and supplies...................................................6 
Selecting a Transducer Location .....................................................6 
How low should you go? ...................................................................8 
Shoot-Thru-Hull vs. Transom Mounting ........................................9 
Transom Transducer Assembly and Mounting ............................10 
Trolling Motor Bracket Installation..............................................15 
Transducer Orientation and Fish Arches.....................................16 
Shoot-Thru-Hull Preparation ........................................................18 
Testing Determines Best Location ................................................19 
Shoot-Thru-Hull Installation ........................................................21 
Power Connections (permanent mount only) ...............................22 
Mounting the Sonar Unit: In-Dash, Bracket or Portable ............24 
Bracket Installation .......................................................................24 
Portable Sonar Installation ...............................................................28 
Installing the Batteries..................................................................29 
Mounting the Unit .............................................................................30 
Portable Transducer Assembly .....................................................31 
Portable Transducer Storage.........................................................33 
Operation..........................................................................................35 
Keyboard Basics .................................................................................35 
Memory ...............................................................................................36 
Menus..................................................................................................36 
Display ................................................................................................37 
Full Chart ...........................................................................................38 
Depth Range .......................................................................................38 
Zoom ....................................................................................................39 
Sensitivity...........................................................................................41