Introduction

Thank you for choosing the Garmin® Fishfinder 340C. The Fishfinder 340C is a full-featured, color sonar that offers a choice of display styles, a dual beam or dual frequency option, and many more features, including the following:

•Ultrascroll™, which gives you a much faster update rate on your Sonar Pages.

•Auto Gain, which allows you to see more fish and structures.

•CANet™ capability, which allows you to connect your unit to CANet-capable Garmin chartplotters, so you can read the Sonar Pages on chartplotters located elsewhere in the boat.

•Round flasher, which gives you an option for how to view the sonar.

•Whiteline, which helps you to interpret bottom hardness.

•2x and 4x automatic and manual zoom.

•Adjustable keel offset.

•Alarms for fish size, shallow water, deep water, and low battery.

•NMEA sonar data output and navigation data input.

Introduction > About This Manual

About This Manual

To get the most out of your Fishfinder 340C, read this manual and learn the operating procedures. This manual includes the following:

•Introduction—contains the Table of Contents, product registration, contact, and cleaning information.

•Getting Started—provides general information that can help you before you install and use your Fishfinder 340C.

•Installing the Fishfinder 340C—covers the installation and testing for the Fishfinder 340C.

•Using the Fishfinder 340C—provides details about the features and operations of the Fishfinder 340C.

•Appendix—contains information, such as specifications, optional accessories, and messages that might appear. You can also find warranty information in the Appendix.

•Index—helps you quickly find information in this manual.

This manual uses the term Warning to indicate a potentially hazardous situation, which, if not avoided, could result in death or serious injury.

This manual uses the term Caution to indicate a potentially hazardous situation, which, if not avoided, may result in minor injury or property damage. It may also be used without the symbol to alert you to avoid unsafe practices.

Fishfinder 340C Owner’s Manual

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