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OWNERS MANUAL
AND REFERENCE
GPSMAP 135
SounderTM
®
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Software Version 2.30 or above, Internal Database Version 2.01 © Navionics Corporation
G-chartTM cartridge data is copyrighted by Navionics Corporation and GARMIN
Corporation and may not be copied or used for any other purpose without permission.
© 1997 GARMIN Corporation
1200 E. 151st Street, Olathe, KS USA 66062
Tel: 913-397-8200 or 800-800-1020
Fax: 913-397-8282
Web Site Address: www.garmin.com
GARMIN (Europe) LTD
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, UK SO51 9AQ,
Tel: 011-44-1794-519944
Fax: 011-44-1794-519222
All rights reserved. No part of this manual may be reproduced or transmitted in any
form or by any means, electronic or manual, including photocopying and recording, for
any purpose without the express written permission of GARMIN.
Information in this document is subject to change without notice. GARMIN reserves the
right to change or improve its products and to make changes in the content without oblig-
ation to notify any person or organization of such changes or improvements.
May 1997
Part #190-00107-00 Rev. C Printed in Taiwan.
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Warning
The GPSMAP 135 Sounder should not be used as a navigational aid or depth sounder to
prevent collision, grounding, boat damage, or personal injury. The digital depth displayed is
the depth under the back of your boat and not the front. By the time a depth is displayed
most of your boat has already passed over that area. We recommend that you operate the
boat at very slow speed if you suspect shallow water or submerged objects.
INTRODUCTION
Warning
GARMIN, GPSMAP, G-chart, AutoLocate,
TracBack and PhaseTrac12 are trademarks of
GARMIN Corporation and may only be used
with permission. All rights are reserved.
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INTRODUCTION
Cautions
CAUTION!
The GARMIN GPSMAP 135 Sounder has no
user-serviceable parts. Should you ever
encounter a problem with your unit, please take
it to an authorized GARMIN dealer for repairs.
The GPSMAP 135 Sounder is screwed shut and
dry nitrogen sealed. Any attempt to open the
case to change or modify the unit in any way
will void your warranty and may result in per-
manent damage to the equipment.
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Caution
The GPS system is operated by the United States government, which is solely
responsible for its accuracy and maintenance. The system is subject to changes
which could affect the accuracy and performance of all GPS equipment. Although
the GARMIN GPSMAP 135 Sounder is a precision electronic NAVigation AID
(NAVAID), any NAVAID can be misused or misinterpreted and, therefore, become
unsafe.
Use the GPSMAP 135 Sounder at your own risk. To reduce the risk of unsafe
operation, carefully review and understand all aspects of this Owner’s Manual—and
thoroughly practice operation using the simulator mode prior to actual use. When in
actual use, carefully compare indications from the GPSMAP 135 Sounder to all avail-
able navigation sources, including the information from other NAVAIDs, visual
sightings, charts, etc. For safety, always resolve any discrepancies before continuing
navigation.
NOTE: This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. There is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful interfer-
ence, the user is encouraged to try to correct the interference by relocating the equip-
ment or connecting the equipment to a different circuit. Consult an authorized deal-
er or other qualified technician for additional help if these remedies do not correct
the problem.
This device complies with Part 15 of the FCC limits for class B digital devices for
home or office use. Operation is subject to the following conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
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Designed for detailed electronic charting and complete depth sounding capabil-
ity, the GARMIN GPSMAP 135 Sounder is a powerful navigation device that can
also give you the fishfinding information you need in fresh or saltwater:
Precision Performance
• High-contrast, four-level gray, LCD screen
• PhaseTrac12 receiver tracks and uses up to 12 satellites simultaneously
for fast, accurate positioning
• Differential-Ready— just add the optional GBR 21 beacon receiver for better
than 5-meter accuracy
• Dry nitrogen-sealed case for use in exposed locations
Advanced Navigating and Plotting
• 250 alphanumeric waypoints with selectable icons and comments
• Built-in worldwide database usable from 4096 to 64 nm scales
• 20 reversible routes with up to 30 waypoints each
• G-chartTM electronic charting with inland and offshore coverage
• TracBackTM route feature which allows you to quickly retrace your track log to
a starting position
• Built-in simulator mode
Superior Fishfinding Ability
• Four zoom levels with a moving view window
• Underwater waypoint marking
• Map/Sounder split screen combines navigation and fishfinding information
• Fish and depth alarms
• Continuously shown digital depth display on all pages
INTRODUCTION
Capabilities
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INTRODUCTION
Warranty
WARRANTY
GARMIN warrants this product to be free from defects in materials and work-
manship for one year from the date of purchase. GARMIN will, at its sole option,
repair or replace any components which fail in normal use. Such repairs or replace-
ment will be made at no charge to the customer for parts or labor. The customer is,
however, responsible for any transportation costs. This warranty does not cover fail-
ures due to abuse, misuse, accident or unauthorized alteration or repairs. GARMIN
assumes no responsibility for special, incidental, punitive or consequential damages,
or loss of use.
The warranties and remedies contained herein are exclusive, and in lieu of all
other warranties expressed or implied, including any liability arising under warranty
of merchantability or fitness for a particular purpose, statutory or otherwise. This
warranty gives you specific legal rights, which may vary from state to state.
To obtain warranty service, call the GARMIN Customer Service department
(913-397-8200 M-F 8 a.m. to 5 p.m. CST) for a returned merchandise tracking
number. The unit should be securely packaged with the tracking number clearly
marked on the outside of the package and sent freight prepaid and insured to a
GARMIN warranty service station. A copy of the original sales receipt is required as
the proof of purchase for warranty repairs. GARMIN retains the exclusive right to
repair or replace the unit or software at its sole discretion.
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Preface
INTRODUCTION
Preface
Congratulations on choosing one of the most advanced depth sounding and
marine navigation systems available! The GARMIN GPSMAP 135 Sounder com-
bines the proven performance of GARMIN GPS, powerful G-Chart electronic
charting, and full featured depth sounding into one unit to create an unsurpassed
marine navigation and fishfinding package.
To get the most out of your new navigation and sounding system, take the time
to go through this operator’s manual and learn the operating procedures for your
unit. This manual is broken down into two parts for your convenience.
Part One introduces you to the GPSMAP 135 Sounder and provides a Getting
Started tour so that you may become more familiar with the unit. This section will
provide you with a basic working knowledge necessary to use the unit to its fullest
potential.
Part Two is divided into sections that provide detailed references to the
advanced features and operations of the GPSMAP 135 Sounder. This allows you to
concentrate on a specific topic quickly, without reading through entire portions of
text that you may not need. This section can be used to look up detailed informa-
tion about the GPSMAP 135 Sounder.
WARNING!
The electronic chart is an aid to navigation and is
designed to facilitate the use of authorized govern-
ment charts, not replace them. Only official gov-
ernment charts and notices to mariners contain
all information needed for safe navigation – and,
as always, the user is responsible for their
prudent use.
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INTRODUCTION
Packing List
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Before installing and getting started with your unit, please check to see that
your package includes the following items. If any parts are missing, please see
your GARMIN dealer immediately.
Standard Package*:
• GPSMAP 135 Sounder Unit
• External Antenna and 30’ cable
• Power/Data Cable
• Mounting Bracket
• Owner’s Manual
• Quick Reference Card
*For assembly part number 010-00092-01, a standard transom-mount transducer is
included.
Optional Accessories:
• G-chart Electronic Chart Cartridges
• PC Kit
• In-Hull and Transom-Mount Transducers with or without temperature and
speed-over-water capability.