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Introduction
Preface and
Registration
Preface
Thank you for choosing the Garmin Fishfi nder 320C. This product is designed for easy operation and to
provide years of reliable service.
Please take the time to read this Owner’s Manual, and learn the operation of your new unit. This will
help ensure that you get the most from the Fishfi nder 320C.
This manual is broken down into three sections
for your convenience. Section One covers the installation and testing for the
Fishfi nder 320C.
Section Two
provides detailed references to the features and operations of the
Fishfi nder 320C
. Section Three gives a basic
overview of how sonar works and provides information on interpreting the sonar graph.
Product Support
If you encounter a problem, or just have a question, our Product Support Department can be reached
Monday-Friday 8am to 5pm Central Standard Time.
By phone at— 1-800-800-1020 or (913)397-8200
Online at— http://www.garmin.com/contactUs/techSupport.jsp
Check the Garmin Web Site (www.garmin.com) for links to Product Support and Product FAQ’s
Enjoy your new Fishfi nder 320C and once again thank you for choosing Garmin.
Product Registration
Help us better support you by completing our on-line registration today!
Have the serial number
of your Fishfi nder 320C Sounder handy and connect to our web site (
www.garmin.com
). Look for the Prod-
uct Registration link on the Home page. Also, be sure to record your serial number in the area provided on
page ii of this manual.
NOTE: If you have previously registered a Garmin product purchase, we invite you to re-reg-
ister using our NEW on-line system. Many services provided by our new product registration
system are now being automated and re-registering your purchase ensures you the best
possible support from Garmin.
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