Table of Contents | 
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Sec. 1: Read Me First!  | 1  | 
Capabilities and Specifications: Cuda 240  | 2  | 
How your Sonar Works  | 4  | 
How your GPS Works  | 4  | 
Introduction to GPS and WAAS  | 5  | 
How to Use this Manual: Typographical Conventions  | 7  | 
Sec. 2: Installation & Accessories  | 9  | 
Preparations  | 9  | 
Transducer Installation  | 9  | 
Recommended Tools and Supplies  | 10  | 
Selecting a Transducer Location  | 10  | 
How Low Should You Go?  | 11  | 
12  | |
Transom Transducer Assembly and Mounting  | 13  | 
Trolling Motor Bracket Installation  | 16  | 
Transducer Orientation and Fish Arches  | 17  | 
18  | |
Power and Cable Connections  | 22  | 
Mounting the Sonar Unit:   | 23  | 
Portable Sonar Installation  | 27  | 
Portable Transducer Assembly  | 29  | 
Sec. 3: Basic Sonar Operation  | 31  | 
Keyboard Basics  | 31  | 
Memory  | 32  | 
Menus  | 32  | 
Main Menu  | 32  | 
Sonar Menu  | 34  | 
Pages  | 35  | 
Basic Sonar Quick Reference  | 37  | 
Sonar Operations  | 38  | 
Fish Symbols vs. Full Sonar Chart  | 40  | 
Other Free Training Aids  | 41  | 
Sec. 4: Sonar Options & Other Features  | 43  | 
ASP (Advanced Signal Processing)  | 43  | 
Alarms  | 44  | 
Depth Alarms  | 44  | 
Zone Alarm  | 45  | 
Fish Alarm  | 46  | 
Chart Speed  | 47  | 
Depth Cursor  | 47  | 
Depth Range - Automatic  | 48  | 
Depth Range - Manual  | 49  | 
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