Garmin GPS III Plus User manual

Owner’s
Manual &
Reference

GARMIN International, 1200 E. 151st Street, Olathe, Kansas 66062 USA
Tel: [phone] Fax: [phone]
GARMIN (Europe) Ltd., Unit 5, The Quadrangle, Abbey Park, Romsey, Hampshire SO51 AQ UK
Tel: [phone] Fax: [phone]
GARMIN Corporation, No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan
Tel: [phone] Fax: [phone]
Web Site Address: www.garmin.com
© 1 -2001 GARMIN Corporation. All rights reserved. Except as expressly provided herein, no part of this manual may
be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without
prior written consent of GARMIN Corporation. GARMIN Corporation hereby grants permission to download a single
copy of this manual onto a hard drive or other electronic storage medium to be viewed for personal use, provided that
such electronic or printed copy of this manual contains the complete text of this copyright notice and provided further
that any unauthorized commercial distribution of this manual is strictly prohibited.
GARMIN
®
, Autolocate
®
, TracBack
®
, and Phasetrac 12
®
are registered trademarks and MapSource™ is a trademark of
GARMIN Corporation and may not be used without the express permission of GARMIN Corporation.
Information in this manual is subject to change without notice. GARMIN Corporation reserves the right to change or
improve its products and to make changes in the content without obligation to notify any person or organization of such
changes. Visit the GARMIN web site (www.garmin.com) for current updates and supplemental information concerning
the use and operation of this and other GARMIN products.
January 2001 Part # 1 0-00162-00 Rev. B Printed in Taiwan.

Thank You!
Thank you for choosing the GARMIN GPS III+ — an easy-to-use GPS navigator for marine, automotive
and outdoor use! The GPS III+ represents GARMIN’s continuing commitment to provide quality navigation
information in a versatile and user-friendly flexible design you’ll enjoy for years. To get the most from your
new GPS, take the time to read through the owner’s manual in order to understand the operating features of
the GPS III+. This manual is organized into three sections for your convenience:
Section One (Getting Started) introduces you to the basic features of the unit and provides a quick-start
orientation to the GPS III+.
Section Two (Simulator Tour) provides a step-by-step lesson in how your new GPS III+ would operate in
the real world by utilizing the built-in simulator mode.
Section Three (Reference) provides details about the advanced features and operations of the GPS
III+ by topic.
Before getting started with your GPS, check to see that your GARMIN GPS III+ package includes the
following items. If you are missing any parts, please contact your dealer immediately.
Standard Package:
• GPS III+ Unit with Detachable Antenna
• Wrist Strap
• GPS III+ Owner’s Manual
• Quick Reference Card
• Velcro Mount
• PC Interface Cable
i
INTRODUCTION
About This Manual

CAUTION: The Global Positioning System (GPS) 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 III+ is a precision electronic
NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted and, therefore, become unsafe.
WARNING: For vehicular applications, it’s the sole responsibility of the owner/operator of the GPS III+
to secure the GPS unit so that it will not cause damage or personal injury in the event of an accident. Do
not mount the GPS III+ over airbag panels or in a place where the driver or passengers are likely to have an
impact with it in an accident or collision. The mounting hardware provided by GARMIN is not warranted
against collision damage or the consequences thereof.
WARNING: For vehicular operations, it is the sole responsibility of the operator of the vehicle to operate
his or her vehicle in a safe manner, maintain full surveillance of all driving conditions at all times, and never
become distracted by the GPS III+ to the exclusion of safe operating practices. It is unsafe to operate the GPS
III+ while you are driving. Failure by the operator of a vehicle equipped with a GPS III+ to pay full attention
to operating the vehicle and road conditions while the vehicle is in motion could result in an accident or
collision with property damage and personal injury.
MAP ATA INFORMATION: One of the goals of GARMIN is to provide customers with the most
complete and accurate cartography that is available to us at a reasonable cost. We use a combination of
governmental and private data sources, which we identify as required in product literature and copyright
messages displayed to the consumer. Virtually all data sources contain inaccurate or incomplete data to some
degree. This is particularly true outside the United States, where complete and accurate digital data is either
not available or prohibitively expensive.
INTRODUCTION
Cautions
ii
I

INTRODUCTION
FCC Compliance
iii
This device complies with Part 15 of the FCC limits for Class B digital devices. 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. Furthermore, 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 affected 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 of this device 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 III+ 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 authority to
operate this device under Part 15 regulations.

INTRODUCTION
Limited Warranty
iv
GARMIN Corporation warrants this product to be free from defects in materials and workmanship 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 replacement 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 failures due
to abuse, misuse, accident or unauthorized alteration or repairs.
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.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE OR INABILITY TO
USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. SOME STATES DO NOT ALLOW THE
EXCLUSIONS OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS MAY
NOT APPLY TO YOU.
To obtain warranty service, call the GARMIN Customer Service department ( 13-3 7-8200) 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 or offer a full refund of the purchase
price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY
BREACH OF WARRANTY.

INTRODUCTION
Registration
v
Customer Service Product Registration
Help us better support you by completing our on-line registration today! Have the serial number of your
GPS III+ handy and connect to our web site (www.garmin.com). Look for the Product Registration link on
the Home page. You can also find current user's manuals, updated unit operating software, FAQs and more
on the Support page. Also, be sure to record your serial number in the area provided below.
NOTE: If you have previously registered a GARMIN product purchase using a mail-in registration
card, we invite you to re-register using our on-line system. Many services provided by our new product
registration system are now being automated and re-registering your purchase ensures you the best
possible support from GARMIN.
Why should you register your GARMIN GPS unit:
• Notification of Product Updates
• Notification of New Products
• Lost or Stolen unit tracking
Serial Number
Use this area to record the serial number (8-digit number located on the back of the unit) in case
it is lost, stolen, or needs service. Be sure to keep your original sales receipt in a safe place or attach
a photocopy inside the manual.
Serial Number:

INTRO UCTION
About This Manual . . . . . . . . . . . . . . . . . . . . . i
Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
FCC Compliance . . . . . . . . . . . . . . . . . . . . . iii
Limited Warranty . . . . . . . . . . . . . . . . . . . . . iv
GETTING STARTE
Unit Features . . . . . . . . . . . . . . . . . . . . . . . . 1
Keypad Usage / Display . . . . . . . . . . . . . . . . 2
Battery Installation . . . . . . . . . . . . . . . . . . . . 3
What is GPS? . . . . . . . . . . . . . . . . . . . . . . . . 4
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . 5
Main Page Sequence . . . . . . . . . . . . . . . . . . . 7
Satellite Status Page . . . . . . . . . . . . . . . . . . . . 8
Position Page . . . . . . . . . . . . . . . . . . . . . . . .
Map Page . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Compass Page . . . . . . . . . . . . . . . . . . . . . . . 11
Highway Page . . . . . . . . . . . . . . . . . . . . . . . 12
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . 13
Marking Waypoint Positions . . . . . . . . . . . . 14
Going to a Waypoint . . . . . . . . . . . . . . . . . . 15
Active Route Page . . . . . . . . . . . . . . . . . . . . 16
SIMULATOR TOUR . . . . . . . . . . . . . . . . . . . .17
REFERENCE
Satellite Status Page . . . . . . . . . . . . . . . . . . . 25
Satellite Status Page Options . . . . . . . . . . . . 2
Position Page . . . . . . . . . . . . . . . . . . . . . . . 30
Position Page Options . . . . . . . . . . . . . . . . . 31
Map Page . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Highway Exits . . . . . . . . . . . . . . . . . . . . . . . 35
Map Page Options . . . . . . . . . . . . . . . . . . . . 36
Compass Page . . . . . . . . . . . . . . . . . . . . . . . 43
Compass Page Options . . . . . . . . . . . . . . . . 44
Highway Page . . . . . . . . . . . . . . . . . . . . . . . 45
Highway Page Options . . . . . . . . . . . . . . . . 46
Waypoints . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Waypoint Options . . . . . . . . . . . . . . . . . . . . 52
INTRODUCTION
Table of Contents
vi

INTRODUCTION
Nearest Waypoints . . . . . . . . . . . . . . . . . . . 53
GOTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
GOTO Options . . . . . . . . . . . . . . . . . . . . . . 56
MOB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
TracBack . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Route Options . . . . . . . . . . . . . . . . . . . . . . . 65
Active Route Page . . . . . . . . . . . . . . . . . . . . 66
Active Route Page Options . . . . . . . . . . . . . 67
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . 6
Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . 74
APPEN IX A: Dashboard Mounting . . . . . . . . . 86
APPEN IX B: Specifications . . . . . . . . . . . . . . 87
APPEN IX C: Wiring/Interfacing . . . . . . . . . . . 88
APPEN IX : Antenna/Remote Mounting . . . . 8
APPEN IX E: Messages . . . . . . . . . . . . . . . . . . 0
APPEN IX F: Map Datums . . . . . . . . . . . . . . . 2
APPEN IX G: Navigation Terms . . . . . . . . . . . 5
APPEN IX H: Time Offsets . . . . . . . . . . . . . . . 7
APPEN IX I : Index . . . . . . . . . . . . . . . . . . . . . 8
Table of Contents
vii

REFERENCE
Proximity Waypoints
viii
INTRODUCTION
" ow To" Index
This list is provided to help you quickly find some of the more important procedures you will use on your
new GPS III+.
TO O THIS: SEE PAGE(S):
Turn the unit on or off .............................................................. 5
Initialize the GPS receiver (first time use) ................................. 5
Adjust screen contrast or backlighting .................................... 25
Enter data and select options .................................................... 2
Learn how to operate the unit’s function keys........................... 2
Mark your present location as a waypoint.......................... 14,22
Goto a destination.............................................................. 15,55
Create and use a route ............................................................ 60
Learn about the map page ................................................. 10,33
Pan using the map arrow ................................................... 20,34
Zoom in or out on the Map page ....................................... 10,33
Reconfigure the Map Page display........................................... 36
Access the Main Menu ............................................................ 6
Change units of measure (statute, nautical, metric) ................ 78
Change the displayed time (zone)........................................... 80
Set alarms ............................................................................... 81
See current position, date and time...................................... ,20
View a unit message................................................................ 0

1
GETTING STARTED
Unit Features
Antenna
(detachable)
Function Keys
LCD Display
Battery Door
Rocker Keypad
Power/Backlight
Key (red)
To change the screen
orientation, press and
hold the PAGE key.

2
GETTING STARTED
Keypad Usage / Display
(POWER)— Red key turns the unit on and off, and
controls three levels of screen backlighting intensity.
( P A G E ) — Scrolls main pages in sequence and returns
display from a menu/options page to a main page. Press
and hold this key to change screen orientation.
(MENU)— Displays a menu of available options for
the current page. Press twice to display the Main Menu.
( G O T O ) — Displays the GOTO waypoint window,
allowing you to select the destination waypoint. Press
and hold this key to activate MOB feature.
(ENTER/MARK)— Activates highlighted fields and
confirms menu options and data entry. Press and hold
this key to mark present position as a waypoint.
(QUIT)— Returns the display to a previous page or
restores a data field’s previous value.
(IN and OUT)— Allows you to zoom in/out through
24 scales on the Map Page. Also adjusts scale on the
Highway Page.
(ROCKER KEYPAD)— Controls the movement of
the cursor, is used to select options and positions, and
to enter data.
DATA ENTRY— Entering data, such as waypoint
names, typically begins and ends with the ENTER/
MARK key. Use the rocker keypad to enter the actual
data: UP/DOWN to change the highlighted character,
RIGHT to move on to the next character.
CURSOR— A solid black bar which can be moved
up, down, left, and right with the keypad to select
individual fields on the display.
FIELD— The location on a page where a group of
characters or option is entered and displayed.
HIGHLIGHT— The act of using the cursor to select a
field for the purpose of entering data.
SCROLL— The act of moving through characters or
options from a selected field.
DEFAULT— A system-selected format, built into the
operating software or the unit’s memory, that will be
followed unless the user chooses a different setting.
Pressing UP or DOWN on the ROCKER
KEYPAD changes numbers and letters.
Pressing LE T or RIGHT on the ROCKER
KEYPAD moves the cursor along the line
or to the next line.
Cursor

GETTING STARTED
Battery Installation
3
The GPS III+ operates on 4 AA batteries (not included), which are installed at the
base of the unit. These batteries provide up to 36 hours of continuous use (See page
87). Rechargeable NiCad or lithium batteries may also be used.
NOTE: The on-screen battery level indicator is calibrated for alkaline batteries,
and will not be accurate when using NiCad or lithium batteries (see page 77).
To install the batteries:
1. Flip up the metal ring at the base of the unit, and turn the ring 90° counterclockwise.
2. nstall the batteries and close the battery compartment door. When replacing the GPS
+’s batteries, observe the polarity markings engraved in the plastic case.
3. Lock the door in the closed position by rotating the metal ring 90° clockwise.
Battery life varies due to a variety of factors, including temperature, use of
an external antenna, and backlighting. You may find that the battery life varies
in different conditions and that lithium batteries provide longer life in colder
conditions. An internal 10-year lithium battery will retain your data while you’re
changing batteries.
Polarity
Markings
H

What is GPS?
GETTING STARTED
The Global Positioning System (GPS) is a system of 24 satellites which circle the
earth twice a day in a very precise orbit and transmit information to earth. The GPS
III+ must continuously “see” at least three of these satellites to calculate your position
and track your movement. At times, additional satellites may be needed to determine
a position. Visit the GARMIN web site for more information on GPS.
By using an almanac (a timetable of satellite numbers and their orbits) stored in
the receiver’s memory, the GPS III+ can determine the distance and position of any
GPS satellite and use this information to compute your position.
Your GPS receiver can only see satellites above the horizon, so it needs to know
what satellites to look for at any given time. To use this almanac data, your GPS needs
to either be told its general location (“initialized”) or given the opportunity to find
itself. Once you initialize the unit to a position, it will typically compute a fix
within a
few minutes. We’ll show you how to initialize your new GPS III+ on page 5.
Initialization is only necessary under the following conditions:
• The first time you use your receiver (new from the factory).
• After the receiver has been moved over 500 miles (with the power off)
from the last time you used it.
• If the receiver’s memory has been cleared and all internally stored data
has been lost.
Because the GPS III+ relies on satellite signals to provide you with navigation
guidance, the receiver needs to have an unobstructed, clear view of the sky for best
performance. In a nutshell, the GPS receiver’s view of the sky will generally determine
how fast you get a position fix —or if you get a fix at all. GPS signals are relatively
weak and do not travel through rocks, buildings, people, or metal, so remember to
keep a clear view of the sky at all times for best performance.
Hold the receiver at a
comfortable height with the
antenna pointing up.
When new (or if a position
cannot be determined after
10 minutes), the GPS III+
will prompt you to initialize
the receiver. The unit needs a
starting position to determine
which satellites are in view.
4

Once the GPS III+ has calculated a position fix, you’ll usually have anywhere from
five to twelve satellites in view. The receiver will then continuously select the best
satellites in view to update your position. If some of the satellites in view get blocked
or “shaded,” the receiver can simply use an alternate satellite to maintain the position
fix. Although a GPS receiver needs four satellites to provide a three-dimensional
(3D) fix, it can maintain a two-dimensional (2D) fix with only three satellites. A
three-dimensional fix means the unit knows its latitude, longitude, and altitude, while
a two-dimensional fix means the unit knows only its latitude and longitude.
Initializing Your GPS III+
To initialize the GPS III+, take the receiver outside and find an open area where the
antenna has a clear view of the sky. You may either hold the receiver at a comfortable
height with the antenna pointing up (see page 4), or mount the receiver on the dash
of a vehicle (Appendix A) or on a bike. (Likewise, when you use your GPS III+ in a
vehicle, make sure the antenna is pointing up.)
To turn the GPS III+ on, press and hold the red power key.
The Welcome Page will be displayed while the unit conducts a self test. Once
testing is complete, the Welcome Page will be replaced by a warning page, then by the
Satellite Status Page. A message will inform you to “select initialization method”. (If
the initialization prompt has not automatically appeared, press MENU and highlight
‘Initialize Position’ and press ENTER.)
To initialize your unit:
1. Press ENTER to acknowledge the message and see a list of initialization options.
2. Use the rocker keypad to highlight ‘Use Map’, and press ENTER.
3. Use the rocker keypad to point the map cursor to your approximate location (within 250
miles). You may also wish to use the N and OUT zoom keys to make it easier to identify
your approximate position.
4. Press ENTER to select the position and begin searching for satellites.
Check the Satellite Status
Page for ‘2D Navigation’ or
‘3D Navigation’ to verify a
position fix.
To initialize the GPS III+,
designate your approximate
location directly on the map
display. Use the rocker keypad
and IN/OUT zoom keys to
position the cursor on the
map. 5
GETTING STARTED
Initialization

This usually provides a position fix in 1 minute. You’ll know you have a fix when
the unit automatically transitions from the Satellite Page to the Map Page, unless you
have manually changed pages (shown left). Your receiver is now ready to use!
To turn the unit off:
1. Press and hold the red power key for 1 second.
Troubleshooting
If you have trouble initializing or getting a position fix, check the following:
• oes the receiver have a clear view of the sky?
If there are large buildings or mountains, or if there is heavy tree cover, the receiver
may not be receiving enough satellite signals to calculate a fix. Also, if you’re using
the GPS III+ on a car dash, make sure the unit is placed so that it has the clearest
possible view of the sky. Your GPS will only be able to detect satellites that it can
“see” through your vehicle’s windshield. Depending on the slope of your dash or
the overall surface area of the window, it may be necessary to mount an external
antenna on your vehicle’s roof or trunk in order to give the unit a better view of the
sky. (Contact your local GARMIN dealer or GARMIN Sales and inquire about the
GA 26C low-profile remote antenna, part number 010-10052-04.)
• Have you selected the right area when initializing?
Check for the correct approximate position on the Map Page (press PAGE
until the Map Page appears; see pages 7 and 10), or reselect your approximate
location to restart the initialization.
• Have you moved more than 500 miles from the last calculated position
with the receiver off?
Reinitialize the receiver by selecting your approximate position on the map, or
select ‘AutoLocate’ from the Satellite Status Page options (see page 2 ).
Once the GPS III+ has a posi-
tion fix, it will automatically
transition from the Satellite
Status Page to the Map Page.
If powering the III+ with
external power, and the exter-
nal power is lost, the unit will
automatically turn off after 30
seconds.
6
GETTING STARTED
Initialization

To turn the GPS III+ back on, press and hold the red power key.
The GPS III+ features six main pages which are linked together in a chain. You can
quickly scroll through the pages in either direction using the PAGE or QUIT keys. Let’s
briefly tour each of these pages in order to give you some insight into how they help
you navigate. We’ll go over all of them in more detail in the reference section.
Press the PAGE key to move
through each of the main
pages in normal fashion.
Press the QUIT key to
sequence through the main
pages in reverse order.
7
GETTING STARTED
Main Page Sequence
Compass Page
Highway Page
Map PageActive Route Page
Position PageSatellite Status Page

Let’s start with the Satellite Status Page, which is the page you’ll view while
your unit is getting a position fix. If you’re not already on this page, press PAGE or
QUIT until it appears. The Satellite Status Page shows you status information that
helps you understand what the receiver is doing at any given time, and it’s a page
that you’ll want to occasionally refer back to as you use your unit. It features a sky
view of available satellites, corresponding signal strength bars, the status of your
current position fix (acquiring, 2D, 3D, etc.), and your estimated position error
(EPE). You can also tell how much battery power is remaining, and you can adjust
the screen contrast/backlighting by pressing the rocker keypad.
Satellites are indicated on the sky view and the signal strength bars by their
corresponding number, from 01 through 32. The sky view shows where it is looking
in the sky for each satellite, by indicating the direction and elevation (angle above
the horizon). The signal strength bars depict the relative strength of the signal from
each satellite being received. The taller the bar, the stronger the signal.
The signal strength bars give
you an indication of what sat-
ellites are visible to the receiv-
er, whether or not they’re being
used to calculate a position fix,
and the signal quality.
If satellite reception is lost,
or an insufficient number of
satellites are available, you
will be alerted with a ‘Poor
Coverage’ receiver status and
message.
8
GETTING STARTED
Satellite Status Page
Satellite Status Page
Receiver Status
Battery Level
Indicator
Signal Strength Bar
Sky View

The Position Page shows you where you are, what direction you’re heading, and
how fast you’re going—and it’s the page you’ll want to use when you don’t have a
destination selected.
A graphic compass display at the top of the page shows your direction of travel
(track) while you’re moving, while six user-selectable data fields below display your
current speed, average speed, trip odometer, trip timer, and sunrise/sunset times at
your current position. “User-selectable” means you can change them to display other
information. We’ll cover these fields more in the reference section.
Below the user-selectable data fields are additional data fields to display your
current position, along with current time and date. The current position readout can
be in latitude/longitude, UTM/UPS, Loran TD, MGRS, Maidenhead or one of several
regional grids. Current time and date can be in local time or UTC (Coordinated
Universal Time).
Position Page showing UTM
coordinates for use with
USGS topographic maps, etc.
The trip odometer, trip timer
and average speed readings
can all be reset from the ‘Trip
Computer’ option on the Main
Menu. See page 74.
9
GETTING STARTED
Position Page
Position Page
Track Compass Trip Odometer
Current Time
and Date
Current Position
Coordinates

The Map Page shows your movement using a real-time track log (an electronic
breadcrumb trail that appears directly on the map as you’re traveling), and your
present position as a pointer icon in the center of the map. The Map Page also
shows any nearby lakes, rivers, highways and towns. Use the zoom keys (IN and
OUT) to adjust the map to the desired scale.
To change the map scale:
1. Press the N zoom key to select a smaller scale and more detail for a smaller area.
2. Press the OUT zoom key to select a larger scale and display a larger area.
The map can be oriented with the top of the page always pointing north,
oriented along your desired course, or it can automatically rotate to keep your
current direction of travel (track) at the top of the screen. The default setting is
‘North Up’, which keeps the top of the page always pointing north.
Nearby waypoints are depicted on the map with any one of over 70 different
symbols, with the waypoint name shown directly above the symbol. We’ll cover
more about the GPS III+’s waypoint features and the Map Page in the reference
section of this manual.
With the map oriented to
‘track up’, the pointer always
points up and the map rotates
to your current direction of
travel (track). Note the north
indicator on the map.
You can also select a full-
screen map from the Map
Page Options. See page 37.
10
GETTING STARTED
Map Page
Map Page
Present Position
Data ields
Nearby Waypoint