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Introduction
Preface/Registration/
Software License Agreement
Preface
Congratulations on choosing one of the most advanced marine navigation systems available! The
Garmin GPSMAP 178/178C Sounder utilizes the proven performance of Garmin GPS and full-featured map-
ping to create an unsurpassed marine navigation chartplotter.
To get the most out of your new navigation system, take the time to go through this owner’s manual and
learn the operating procedures for your unit. This manual is broken into two parts for your convenience.
Part One introduces you to the GPSMAP 178/178C Sounder and provides a Getting Started tour so that
you may become more familiar with the unit. This section provides you with a basic knowledge necessary to
use the unit.
Part Two is divided into sections that provide detailed references to the advanced features and opera-
tions of the GPSMAP 178/178C Sounder. This allows you to concentrate on a specific topic quickly and look
up detailed information about the GPSMAP 178/178C Sounder.
Product Support Product Registration
Help us better support you by completing our online
registration today! Connect to our Web site at
www.garmin.com/registration/.
Use this area to record the serial number (8-digit
number located on the back of the product name) in
case your product name needs service. Keep the original
sales receipt, or a photocopy, in a safe place.
Serial Number:
___ ___ ___ ___ ___ ___ ___ __
Contact Garmin
Contact Garmin if you have any questions while
using your product name. In the USA contact Garmin
Product Support by phone: (913) 397-8200 or (800)
800-1020, Monday–Friday, 8 AM–5 PM Central Time;
or go to www.garmin.com/support/, and click
Product Support.
In Europe, contact Garmin (Europe) Ltd. at
+44 (0) 870.8501241 (outside the UK) or
0808 2380000 (within the UK).
Software License Agreement
BY USING THE GPSMAP 172/172C, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS
OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT CARE-
FULLY.
Garmin grants you a limited license to use the software embedded in this device (the “Software”) in
binary executable form in the normal operation of the product. Title, ownership rights and intellectual
property rights in and to the Software remain in Garmin.
You acknowledge that the Software is the property of Garmin and is protected under the United States
of America copyright laws and international copyright treaties. You further acknowledge that the structure,
organization, and code of the Software are valuable trade secrets of Garmin and that the Software in source
code form remains a valuable trade secret of Garmin. You agree not to decompile, disassemble, modify,
reverse assemble, reverse engineer, or reduce to human readable form the Software or any part thereof or
create any derivative works based on the Software. You agree not to export or re-export the Software to any
country in violation of the export control laws of the United States of America..