GPS 75 Personal Navigator TM OWNER'S MANUAL (Software Version 2.20 or above) © 1992-1993 GARMIN, 9875 Widmer Road, Lenexa, KS Printed in Taiwan. 66215, USA All rights reserved. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, 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. October, 1993 190-00046-00 Rev. D PREFACE GARMIN thanks you for selecting our high performance, full featured Personal NavigatorTM. The GPS 75 represents our continued commitment to provide you with a portable navigation unit that is versatile, extremely accurate, and easy to use. We are confident you will enjoy using your unit for many years to come. The GPS 75's rugged construction and quality components offer the reliability demanded by the harshest operating environments. It may be used in marine and land vehicles, as well as by hunters, hikers, and military forces. The unit may be operated portably using its own battery pack, or it may use a 5-40 volt DC external power source for fixed mounted applications. You can even use a 115- or 230-volt battery charger for planning trips at home. This manual and accompanying quick reference guide provide complete information on safely operating the GPS 75 to its full potential. A practice voyage has been planned for you to practice your navigation skills using the built-in simulator. Afterwards, try a trip of your own to realize the value of the GPS 75 as your Personal NavigatorTM. If you have any questions or comments, our Product Support Department is eager to serve you. GARMIN is fully committed to your satisfaction as a customer. GARMIN International, Inc. 9875 Widmer Road Lenexa, KS 66215 1-800-800-1020 (913) 599-1515 i 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 under development and is subject to changes which could affect the accuracy and performance of all GPS equipment. Although the GPS 75 is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted, and therefore become unsafe. Use the GPS 75 at your own risk. To reduce the risk, 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 75 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 Rules. Operation is subject to the following two 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. ii TABLE OF CONTENTS CHAPTER 1 INTRODUCING THE GARMIN GPS 75 1.1 Capabilities 1.2 Operations 2 GETTING STARTED 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3 Front Panel Softkey Operation Cursor and Fields Keypad Operation Entering Data Viewing Messages Operating Modes PAGE 1-1 1-1 1-2 2-1 2-1 2-1 2-2 2-2 2-4 2-4 2-5 3-1 3-1 3-2 3-3 3-5 3-6 3-6 3-7 3-8 3-11 3-11 4-1 4-1 4-2 4-3 4-4 4-4 4-5 4-5 iii BASIC OPERATION 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 Power On Satellite Status Pages Present Position Waypoints Waypoint List Autostore TM Getting There Fast--GOTO Navigating To A Waypoint Man Overboard Sample Trip 4 ROUTES 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Navigating Using Routes Creating and Copying A Route Activating Routes Editing Routes Deleting Routes Active Route Route List 5 ADVANCED WAYPOINT FEATURES 5.1 5.2 5.3 5.4 Nearest Waypoints Proximity Waypoints Reference Waypoints Waypoint Scanning 5-1 5-1 5-1 5-2 5-3 6-1 6-1 6-2 6-3 6-4 6-5 6-6 6-6 6-7 6-8 6-9 6-10 6-11 6 AUXILIARY FUNCTIONS 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 Operating Mode and Filters Plotting Setup Units/Heading Setup Alarms and CDI Setup Date/Time Audio and Display Setup Interface Setup Map Datum Selection Beacon Receiver Setup Sunrise/Sunset Planning Trip & Fuel Planning Messages APPENDICES A B MESSAGES GLOSSARY AND NAVIGATION TERMS B.1 Definitions B.2 Course To Steer (CTS) C INSTALLATION AND MAINTENANCE C.1 C.2 C.3 C.4 C.5 C.6 C.7 D E iv Specifications Electrical Wiring Universal Mount Installation Universal Mount Operation Battery Pack Operation Maintenance Product Support A-1 B-1 B-1 B-3 C-1 C-1 C-3 C-5 C-8 C-10 C-11 C-12 D-1 E-1 MAP DATUMS LOCAL TIME TO UTC TIME OFFSET CHAPTER 2 GETTING STARTED 2.1 FRONT PANEL Page Options Page Annunciator Softkeys Message Annunciator PWR STAT GOTO MOB AUTO STO ABC 1 JKL 4 STU 7 DEF 2 MNO 5 VWX 8 GHI 3 PQR 6 YZ 9 NAV WPT RTE CLR 0 ENT The front panel consists of a 20-key keypad with a 85 x 64-pixel LCD display. Both the display and keypad may be illuminated for nighttime operation. 2.2 SOFTKEY OPERATION Information displayed on the LCD is commonly referred to as a "page." The GPS 75 works with softkey operation. At the bottom of the screen is a list of page options. To select a different page, press the appropriate softkey below the desired menu option. Please note that the menu options must be highlighted in order to use the softkeys. On the bottom line, extreme right, is the page annunciator, which indicates the current page you are viewing. 2-1 2.3 CURSOR AND FIELDS Confirmation Field Bar Field Cyclic Field The area of the page which is highlighted in reverse video is called the cursor. The cursor may be moved to locations on the page called fields which allow you to enter data or change options. You will encounter five types of fields. · Numeric fields accept numbers only. · Alphanumeric fields accept numbers as well as letters. · Cyclic fields allow selection from several available options. A cyclic field is preceded by a prompt ( ). You may cycle through the choices by pushing CLR. · Confirmation fields allow you to indicate your approval. For example, you will be asked to confirm that you want to delete a waypoint. Confirmation fields always end with a "?" character. Press ENT to approve the confirmation field. · Bar fields allow an adjustable scale entry with the length of the bar representing the minimum to maximum setting. Use your arrow keys to make adjustments in bar fields. 2.4 KEYPAD OPERATION The PWR/STAT key is a dual function key that controls unit power and system status. Pressing this when the unit is off will turn the unit on. To turn the unit off, press and hold PWR/STAT until the display is blank. Pressing PWR/STAT momentarily while the unit is on will take you to the status pages (see Section 3.2). If the message annunciator is flashing and the tone sounds, you may push PWR/STAT to view the message. 2-2 Pressing GOTO/MOB once allows you to initiate the GOTO function, setting an instantaneous course to any waypoint (see Section 3.7). Pressing GOTO/MOB twice allows you to initiate the Man Overboard function, setting an immediate course to the captured position (see Section 3.9). Pressing AUTOSTORE allows you to capture your present position instantaneously (see Section 3.6). Pressing NAV selects the Navigation Pages which allow you to view navigation information and the Plot Page (see Section 3.8). Pressing WPT selects the Waypoint Pages which allow you to create, edit, delete, and rename waypoints. In addition, you may view nearest waypoints or proximity waypoints (see Sections 3.4, 3.5 and Chapter 5). Pressing RTE selects the Route Pages which allow you to edit, review, activate, and delete routes (see Chapter 4). Pressing either of the arrow keys allows you to move the cursor, scroll through information lists, and enter letters of the alphabet. The alphanumeric keys allow you to enter letters and numbers. Use the arrow keys to select the desired letter or number. Pressing this key while the cursor is not on a numeric or alphanumeric field allows you to change the backlight level. There are two backlighting levels. Pressing CLR erases information in the cursor field. If the cursor is over a cyclic field, pressing CLR will toggle through several available options. Pressing ENT confirms an entry or selection. 2-3 2.5 ENTERING DATA To enter data you must first move the cursor under the desired field by pressing the right or left arrow key. To enter a number... · Press the key that is labeled with the desired number. The numbers will fill in from the right side of the field and move to the left as each new number is entered. For example, if you wish to enter "51" in a three space field, you must press the 5 and 1 keys in that order. · Press CLR if you enter an incorrect number. · Press ENT when you have filled all significant digits of the field with numbers. To enter a letter... · Press the key that is labeled with the desired letter. · Press the right or left arrow key until the desired letter is displayed. · Press CLR if you enter an incorrect letter. · Press ENT when all the characters are entered. The GPS 75 features a keypad feedback tone which will sound each time you press a key. If you enter data which is not appropriate for the field, the feedback tone will quickly sound three times indicating an error. The keypad feedback tone can be turned off if you wish (see Section 6.6). 2.6 VIEWING MESSAGES From time to time, the GPS 75 will use a message to tell you of conditions needing attention. When the GPS 75 has a new message, the MSG annunciator will flash. When this occurs, press PWR/STAT to view the new message(s). Press PWR/STAT again to see the page you were viewing prior to reading your message. While the MSG annunciator is flashing, the GPS 75 will also generate a tone to alert you of the message (if your unit is connected to an external alarm, it will also be activated). Messages that demand immediate attention such as an arrival alarm generate a quick tone that will not stop until you view the message. All other messages generate a slow tone that will cease after 15 seconds. The message tone may be turned off if you 2-4 wish (see Section 6.6). Important messages will remain on the Message Page after being viewed. If this occurs, the MSG annunciator will be in view but will not flash (if no messages exist, the MSG annunciator will not be visible). To review these messages, press PWR/STAT to reveal the status menu options. Then press the key underneath the "AUX" page option. With the arrow keys, scroll to "Messages" and press ENT. Refer to Appendix A for a complete list of GPS 75 messages. 2.7 OPERATING MODES Three modes are available which will allow you to operate your GPS 75 in the way which best suits your needs (see Section 6.1). Normal mode is most suitable for high dynamics applications. The GPS 75 will typically operate up to 5 hours on a single pack of alkaline batteries, or 6 hours using the rechargeable battery pack. Battery Saver mode is suitable for most applications and will extend the battery life to 7 hours on a single pack of alkaline batteries, or 9 hours using the rechargeable battery pack. Simulator mode allows you to simulate the operation of the GPS 75 while at home or in your office. The simulator mode can be used while learning to use your GPS 75 and is ideal for planning routes and entering waypoints. Keep in mind that the GPS 75 is not tracking satellites in the simulator mode. YOU SHOULD NEVER ATTEMPT TO USE THE SIMULATOR MODE FOR ACTUAL NAVIGATION. If you are using your GPS 75 for the first time, you are encouraged to review Chapter 3 which introduces the GPS 75's basic features, and Chapter 6 on custom setups. Afterward, you may want to read through the rest of this manual and make further use of the built-in simulator to practice with the advanced features. 2-5 CHAPTER 3 BASIC OPERATION 3.1 POWER ON After you turn your GPS 75 on, it will conduct a series of self tests and display the following notice: Following completion of the tests, the Satellite Bar Graph Page (see Section 3.2) will be displayed, and the GPS 75 will begin acquiring satellites. After a position is found (and if no keys have been pressed), the Position Page (see Section 3.3) will be displayed, and the unit is ready for normal operation. When four or more satellites with good geometry are available, the GPS 75 will automatically operate in the 3D mode in which latitude, longitude, and altitude are computed. If only three satellites are available, the unit will operate in 2D mode in which only latitude and longitude are computed. When operating in the 2D mode, the unit will use the last computed altitude or your last entered altitude. ...