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GPS48revB.qxd 1/7/00 3:12 PM Page 1
GPS
48
Personal
TM
Navigator
Owner’s
Manual
&Reference
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GPS48revB.qxd 1/7/00 3:12 PM Page 2 Software Version 4.55 or above © 1998-1999 GARMIN Corporation 1200 E. 151st Street, Olathe, Kansas 66062 USA Tel: 913-397-8200 Fax: 913-397-8282 GARMIN (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park, Romsey, Hampshire SO51 9AQ UK Tel: 011-44-1794-519944 Fax: 011-44-1794-519222 GARMIN (Asia) Corp. nd No. 68, Jangshu 2 Rd., Shijr, Taipei County, Taiwan Tel: 011-886-2-2642-9199 Fax: 011-886-2-2642-9099 Web Site Address: www.garmin.com All rights reserved.
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GPS48revB.qxd 1/7/00 3:12 PM Page 3 INTRODUCTION Packing List GPS 48 Owner’s Manual Thank you for choosing the GARMIN GPS 48 —the smallest, easiest- to-use GPS navigator for outdoor use! The GPS 48 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 man- ual in order to understand the operating features of the
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GPS48revB.qxd 1/7/00 3:12 PM Page 4 INTRODUCTION 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 48 is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted and, therefore, become unsafe. Use the GPS 48 at your own risk. To reduce the risk of unsaf
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GPS48revB.qxd 1/7/00 3:12 PM Page 1 INTRODUCTION Table of Contents SECTION ONE Introduction Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 Navigation Basics & Key Pad Usage & Data Entry . . . . . . . . . . . . . . .4-5 SECTION TWO Getting Started Initializing for First Time Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7 Primary Page Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9 Po
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GPS48revB.qxd 1/7/00 3:12 PM Page 2 INTRODUCTION Glossary The GPS 48 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 reference sections of the manual. Almanac Data Satellite constellation information (including location and health of satel- lites) th
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GPS48revB.qxd 1/7/00 3:12 PM Page 3 INTRODUCTION Glossary Estimated Time Enroute (ETE) The time left to your destination at your present speed. Grid 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 (SPD) The velocity you are traveling relative to a ground position. Latitude The north/south measurement of position perpendicular to the earth’s polar axis. Longitude An east/w
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CROSSTRACK ERROR DTK BRG TRK GPS48revB.qxd 1/7/00 3:12 PM Page 4 INTRODUCTION Navigation Basics The GPS 48 provides steering guidance and navigation information using degrees, a measurement measured in a clockwise direction from a north reference. North is described as 000º, east as 090º, south as 180º, and west as 270º. The diagram and compass rose below provide a graphic illustration of the navigation terms used by the GPS 48. More information on basic navigation and GPS are available at y
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GPS48revB.qxd 1/7/00 3:12 PM Page 5 INTRODUCTION Keypad Usage & Data Entry Turns the unit on and off and B activates screen backlighting. Scrolls through the main data pages in sequence and returns P display from a submenu page to a primary page. DATA ENTRY The arrow keypad is Captures a position and dis- used for all data entry. M plays the mark position page. Use theU andD keys to select letters, Displays GOTO page with numbers, and menu the waypoint highlighted for options; use theL and
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GPS48revB.qxd 1/7/00 3:12 PM Page 6 GETTING STARTED Initializing Your GPS 48 for First-Time Use The GPS 48 does not require initialization under normal day-to-day use. However, initialization may Initializing the reduce the time it takes to compute a position fix after one of the following events: Receiver • After memory loss • When the receiver has been moved more than 500 miles with the power off. Additionally, it may be necessary to initialize the unit the first time you use it, if it do
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GPS48revB.qxd 1/7/00 3:12 PM Page 7 GETTING To initialize the receiver: STARTED 1. If the ‘COUNTRY’ option is not highlighted, press the key repeatedly to move the field highlight to the D ‘COUNTRY’ option. Initializing the Receiver 2. Press the key. E 3. Use the key to scroll through the list options until D the country of your present location appears. If the country you’re in is not listed, select another country within 500 miles of your present position. 4. Use theU key to highlight the
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GPS48revB.qxd 1/7/00 3:12 PM Page 8 GETTING STARTED Primary Pages Before we start the tour, let’s briefly look at the five primary information pages used for the GPS 48. Switch between pages by pressing either the Q or keys. Primary Pages J J Q Satellite Page The Satellite Page shows satellite positions and signal strength. Satellite positions are displayed using two circles and a center point. The outer circle shows satellites on level with the horizon; the inner circle is 45º above the h
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GPS48revB.qxd 1/7/00 3:12 PM Page 9 GETTING Map Page STARTED The Map Page acts as a window. It allows you to view your position, the “path” you have traveled over, Primary Pages and nearby navaids, cities and waypoints. A diamond icon in the center of the screen repre- sents your current position. As you move, you will see a thin line - called a track log - appear along the path you have just covered. The GPS 48 contains a built–in marine database that displays city locations and nautical
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GPS48revB.qxd 1/7/00 3:12 PM Page 10 GETTING STARTED Getting Started Tour Now that you’ve seen the primary pages, let’s get Power On & started by taking a simple tour to show you the basics Marking a about using your GPS 48. The tour assumes that your unit has been turned on, initialized, and that none of Position the factory settings (units of measure, selectable fields, etc.) have been changed. If these settings have been changed, the pictures and descriptions you see in this manual may
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GPS48revB.qxd 1/7/00 3:12 PM Page 11 GETTING Using the Position Page STARTED Walk at a brisk pace for 3-4 minutes and watch the Position Page. The direction you are moving (track), Map Page & your speed, trip distance, and altitude are shown on the Going to a upper half of the screen. The latitude and longitude of Waypoint your position are displayed in the middle of the page, with the time of day shown below. Let’s continue by moving to the next page: 1. Press . P Map Page The next page
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GPS48revB.qxd 1/7/00 3:12 PM Page 12 GETTING Highway Page STARTED Bearing to Distance to Highway Page & Waypoint Waypoint Cancelling a Track Over Speed Over GOTO Ground Ground Destination Waypoint CDI Scale Graphic User Selectable Highway Field The GPS 48’s Highway Page provides graphic steering guidance to a destination waypoint, with emphasis on the straight-line desired course, the distance and direc- tion you are off course. As you head toward your destination, the middle of The GPS48 wi
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GPS48revB.qxd 1/7/00 3:12 PM Page 13 GETTING Clearing a Cluttered Map Display STARTED After you’ve used the GPS 48 for a few trips, you may find that your map display has become a bit messy from Clearing the keeping track of your every move. For practice, let’s clean Map, Contrast, up the screen by clearing the track log (the plot points left on the Map Page) we’ve just created during the Getting & Power Off Started tour. 1. Press or until the Map Page appears. P Q 2. Highlight the ‘CFG’ fi
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GPS48revB.qxd 1/7/00 3:12 PM Page 14 REFERENCE Satellite Page Satellite Page Status Estimated Field Position Error Skyview Battery Display Indicator Signal Strength Indicators The GPS 48’s Satellite Page displays the status of vari- ous receiver functions. The status information will help you understand what the GPS 48 is doing at any given time, and will tell you whether or not the receiver has calculated a position fix. The GPS 48 Satellite Page will help you deter- Sky View and Signal St
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GPS48revB.qxd 1/7/00 3:12 PM Page 15 REFERENCE Receiver Status Receiver status is indicated at the top left of the page, with the current horizontal accuracy (estimated Receiver Status position error, in feet or meters) at the top right. The status will be shown as one of the following conditions: & EZinit Searching— the GPS 48 is looking for any avail- able satellites in view. AutoLocate— the GPS 48 is initializing and col- lecting new almanac data. This process can take 5 minutes, depend
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GPS48revB.qxd 1/7/00 3:12 PM Page 16 REFERENCE Battery Level Indicator The Satellite Page also features a battery level indica- Battery Level, tor, located to the left of the sky view, which displays the strength of the unit’s batteries. The battery indicator will Backlighting & not appear if the receiver is using external power. Emergency Erase The battery level indicator is calibrated for alka- line batteries. Voltage differences will display ! Ni-Cad and lithium batteries differently.
