About This Manual - Garmin FishFinder 340C Owner's Manual

I
NTRODUCTION
Thank you for choosing the Garmin
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 enables you to see more fish and
structures.
• CANet™ capability, which enables 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.
Fishfinder 340C Owner's Manual
Fishfinder 340C. The
®

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.
I > A T M
NTRODUCTION BOUT HIS ANUAL
i