Garmin GPS 75 User manual

GPS 75
Personal NavigatorTM
OWNER'S MANUAL
(Software Version 2.20 or above)

© 1992-1993 GARMIN, 9875 Widmer Road, Lenexa, KS 66215, USA
Printed in Taiwan.
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

i
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
[phone]

ii
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.

iii
TABLE OF CONTENTS
CHAPTER PAGE
1 INTRODUCING THE GARMIN GPS 75 1-1
1.1 Capabilities 1-1
1.2 Operations 1-2
2 GETTING STARTED 2-1
2.1 Front Panel 2-1
2.2 Softkey Operation 2-1
2.3 Cursor and Fields 2-2
2.4 Keypad Operation 2-2
2.5 Entering Data 2-4
2.6 Viewing Messages 2-4
2.7 Operating Modes 2-5
3 BASIC OPERATION 3-1
3.1 Power On 3-1
3.2 Satellite Status Pages 3-2
3.3 Present Position 3-3
3.4 Waypoints 3-5
3.5 Waypoint List 3-6
3.6 AutostoreTM 3-6
3.7 Getting There Fast--GOTO 3-7
3.8 Navigating To A Waypoint 3-8
3.9 Man Overboard 3-11
3.10 Sample Trip 3-11
4 ROUTES 4-1
4.1 Navigating Using Routes 4-1
4.2 Creating and Copying A Route 4-2
4.3 Activating Routes 4-3
4.4 Editing Routes 4-4
4.5 Deleting Routes 4-4
4.6 Active Route 4-5
4.7 Route List 4-5

iv
5 ADVANCED WAYPOINT FEATURES 5-1
5.1 Nearest Waypoints 5-1
5.2 Proximity Waypoints 5-1
5.3 Reference Waypoints 5-2
5.4 Waypoint Scanning 5-3
6 AUXILIARY FUNCTIONS 6-1
6.1 Operating Mode and Filters 6-1
6.2 Plotting Setup 6-2
6.3 Units/Heading Setup 6-3
6.4 Alarms and CDI Setup 6-4
6.5 Date/Time 6-5
6.6 Audio and Display Setup 6-6
6.7 Interface Setup 6-6
6.8 Map Datum Selection 6-7
6.9 Beacon Receiver Setup 6-8
6.10 Sunrise/Sunset Planning 6-9
6.11 Trip & Fuel Planning 6-10
6.12 Messages 6-11
APPENDICES
A MESSAGES A-1
B GLOSSARY AND NAVIGATION TERMS B-1
B.1 Definitions B-1
B.2 Course To Steer (CTS) B-3
C INSTALLATION AND MAINTENANCE C-1
C.1 Specifications C-1
C.2 Electrical Wiring C-3
C.3 Universal Mount Installation C-5
C.4 Universal Mount Operation C-8
C.5 Battery Pack Operation C-10
C.6 Maintenance C-11
C.7 Product Support C-12
D MAP DATUMS D-1
E LOCAL TIME TO UTC TIME OFFSET E-1

2-1
CHAPTER 2
GETTING STARTED
2.1 FRONT PANEL
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.
STAT
STO
MOB
ABC
1
JKL
4
STU
79
MNO
5
VWX
8
0
DEF
2GHI
3
PQR
6
YZ
-
NAV
RTE
ENT
WPT
CLR
PWR
GOTO
AUTO
Message Annunciator
Page Options
Page Annunciator
Softkeys