Owner's Manual & Reference GPS 38 Personal Navigator ® Software Version 3.0 or above © 1997 GARMINCorporation 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, Romsey, U.K. 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 their products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. GARMIN, GPS 38, Personal Navigator, AutoLocate and MultiTrac8 are all trademarks of GARMIN Corporation, and may not be used without the expressed permission of GARMIN. June 1997 Part #190-00112-00 Rev. B Printed in Taiwan. GPS 38 Personal NavigatorTM OWNER'S MANUAL INTRODUCTION Preface Welcome to the smallest, easiest-to-use GPS navigator for recreational use! The GPS 38 represents GARMIN's continuing commitment to provide outdoors sports enthusiasts with quality navigation information in a versatile, accurate and user-friendly design you'll enjoy for years to come. To get the most of your new GPS unit, it is important that you take the time to read through this owner's manual to understand the operating features of the GPS 38. The manual is organized into three sections for your convenience: Section One takes provides step by step instructions to initialize the receiver for first time use. Section Two introduces you to the basic features of the unit and provides a quick-start orientation to the GPS 38. It has been designed to acquaint you with the unit and provide a basic working knowledge necessary to use the unit in typical conditions. Section Three provides a detailed reference to the advanced features and operations of the GPS 38 in a topical format. This allows you to concentrate on a specific topic quickly, without reading through entire sections of text that you may not need. Packing List Before getting started with your GPS, check to see that your GARMIN GPS 38 package includes the following items. If you are missing any parts, please contact your dealer immediately. Standard Package: · GPS 38 Receiver · GPS 38 Owner's Manual · Wrist Strap · Quick Reference Card Thanks for choosing the GARMIN GPS 38. We hope it will help you get the most out of your outdoor recreation adventures. i INTRODUCTION Caution CAUTION The GPS system is operated by the government of the United States, 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 GPS 38 is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted, and therefore become unsafe. Use the GPS 38 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 GPS 38 to all available navigation sources including the information from other NAVAIDs, visual sightings, charts, etc. For safety, always resolve any discrepancies before continuing navigation. NOTE: This device complies with Part 15 of the FCC limits for Class B digital devices for home or office use. 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. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to other equipment, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by relocating the equipment or connecting the equipment to a different circuit than the affected equipment. Consult an authorized dealer or other qualified service technician for additional help if these remedies do not correct the problem. 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. The GPS 38 does not contain any user-serviceable parts. Repairs should only be made by an authorized GARMIN service center. Unauthorized repairs or modifications could void your warranty and your authority to operate this device under Part 15 regulations. ii INTRODUCTION Table of Contents SECTION ONE Introduction GPS Overview/Navigation Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Initializing the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8 SECTION TWO Getting Started Power On/Satellite Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Sky View/Position Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Marking a Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Position and Map Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 GOTO and Steering Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . .13-14 Page Sequence and Menu Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Clearing the Track Log/Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 SECTION THREE Reference Satellite Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-19 Position Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Creating and Using Waypoints . . . . . . . . . . . . . . . . . . . . . . . . . . .21-27 GOTO and MOB Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 TracBack Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29-30 Creating and Using Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-36 Compass and Highway Page Steering Guidance . . . . . . . . . . . . . . .37-39 Map Plotting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40-43 Menu Page and Auxiliary Functions . . . . . . . . . . . . . . . . . . . . . . .44-52 Simulator Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Appendix A--Messages/Time Offsets . . . . . . . . . . . . . . . . . . . . . . .54-55 Appendix B--Map Datums . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56-57 Appendix C--Specifications and Wiring . . . . . . . . . . . . . . . . . . . .58-59 Appendix D--Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Appendix E--Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61-62 1 INTRODUCTION Glossary The GPS 38 is a powerful navigation tool that can guide you anywhere in the world. To better understand its operation and capabilities, it may be helpful to review the basic terms and concepts briefly explained below. Other navigation and GPS definitions used in the manual are defined in the appropriate sections of the reference section of the manual. Almanac Data--Satellite constellation information (including location and health of satellites) that is transmitted to your receiver from every GPS satellite. Almanac data must be acquired before GPSnavigation can begin. Bearing--The compass direction from your position to a destination. Course Made Good (CMG)--The bearing from the "active from" position (your starting point) to your present position. Crosstrack Error (XTE)--The distance you are off a desired course in either direction. Desired Track (DTK)--The compass course between the "from" and "to" waypoints. Differential GPS (DGPS)--An extension of the GPSsystem that uses land-based radio beacons to transmit position corrections to GPS receivers. Estimated Time of Arrival (ETA)--The time of day of your arrival at a destination. Estimated Time Enroute (ETE)--The time left to your destination at your present speed. Grid--A coordinate system that projects the earth on a flat surface, using square zones for position measurements. UTM/UPS and Maidenhead formats are grid systems. Ground Speed--The velocity you are traveling relative to a ground position. Latitude--A north/south measurement of position perpendicular to the earth's polar axis. Longitude--An east/west measurement of position in relation to the Prime Meridian, an imaginary circle that passes through the north and south poles. Navigation--the process of traveling from one place to another and knowing where you are in relation to your desired course.. Position--An exact, unique location based on a geographic coordinate system. Track (TRK)--The direction of movement relative to a ground position. Universal Transverse Mercator (UTM)-- A grid coordinate system that projects global sections onto a flat surface to measure position in specific zones. Velocity Made Good (VMG)--The speed you are traveling in the direction of the destination. Waypoint--A specific location saved in the receiver's memory. 2 INTRODUCTION Keypad Usage & Data Entry B P M G E Q U D LR Turns the unit on and off and activates screen backlighting. Scrolls through the main data pages in sequence and returns display from a submenu page to a primary page. Captures a position and displays the mark position page. Displays GOTO page with the waypoint highlighted for GOTO operation. Pressing GOTO twice activates MOB. Confirms data entry and activates highlighted fields to allow data entry. Returns display to a previous page, or restores a data field's previous value. Selects alphanumerical characters and menu choices and moves the field highlight from field to field. Moves the selected character field and moves the field highlight from field to field. DATA ENTRY The arrow keypad is used for all data entry. Use the U and D keys to select letters, numbers, and menu options; use the L and R keys to move the cursor forward or backward along the line. Press E to confirm your entry. 3 GETTING STARTED Getting Started with your GPS Welcome to the exciting world of GARMINGPS! The GPS 38 represents GARMIN's continuing commitment to provide outdoor enthusiasts with quality navigation information in a versatile, user-friendly design you'll enjoy for years to come. To get the most out of your GPS, be sure to read through the initialization and getting started sections of this manual and refer to the reference section for complete details on the GPS 38's advanced features. Battery Installation Wrist Strap Attachment To attach the GPS 38's wrist strap, slide the small loop end of the strap through the slot at the top of the GPS. Battery Installation The GPS 38 uses 4 AA batteries to provide up to 12 hours of operation in normal mode and up to 20 hours of operation in battery saver mode using alkaline batteries. Rechargeable Ni-Cad or lithium batteries may also be used. Note that the battery level indicator is calibrated for alkaline batteries, and Ni-Cad or lithium batteries will only show battery life at partial scale. To install batteries: Thread the strap through the small loop eye and draw the strap tight. 1. Remove the battery cover by turning the thumb loop at the bottom of the unit 1/4 turn counter-clockwise. 2. Insert batteries into position. The battery pole you can still see should match the symbol marked on the case. 3. Replace and secure the battery cover by turning the thumb loop 1/4 turn clockwise. 4 Initializing Your GPS for First Time Use GETTING STARTED Initialization The GPS 38 calculates your position and movement by tracking signals sent from GPS satellites. Each of the 24 GPS satellites circle the earth twice a day in a very precise orbit, and transmit information back to earth. In order to determine a position fix, your GPS receiver needs to continuously "see" at least three satellites. Because a GPS receiver can only see satellites above the horizon, it needs to know what satellites to look for at any given time. By using an almanac (a timetable of satellite numbers and their orbits) stored in the receiver's memory, the GPS 38 can determine the distance and position of any GPS satellite. To use this almanac data, your GPS needs to know where you are, or be given the opportunity to "find itself". Once you initialize the unit to this position, the GPS 38 will usually compute a fix within a few minutes. Remember, this process is only ...