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Magellan Trailblazer Reference Manual

Gps satellite navigator
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Reference Guide

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Summary of Contents for Magellan Trailblazer

  • Page 1 Magellan GPS Satellite Navigator Reference Guide...
  • Page 2 Welcome from the Magellan crew. With the purchase of a Magellan GPS satellite receiver, you have joined the thousands of people who enjoy using GPS in their professional and recre- ational activities. Since we introduced our first product more than five years ago, Magellan has established a reputation for product excellence and customer support.

  • Page 3: Table Of Contents

    First-Time GPS Users ......Using Position Fixes, Navigation, 1; Latitude/Longitude, 1 2; Navigating with Waypoints, 3; Setting a Route, 5; Navigating with a Route, 5; Entering a Waypoint, 6; UTM Coordinates, 6; Applications, 8......9 General Usage Power, 9; The Antenna, 10; Initialization, 11; Setup, 13; The Auxiliary Functions, 17;...
  • Page 4 USE PROPER ACCESSORIES Use only Magellan cables and antennas; the use of non-Magellan cables and antennas may severely degrade performance or damage the receiver, and will void the warranty.

  • Page 5: First-Time Gps Users

    First-Time GPS Users This section is to help readers who are new to navigation or to electronic navigation equipment. lt explains terms that are commonly used by naviga- tors worldwide and some basic concepts of navigation, such as position fixes and coordinates.

  • Page 6: Using Position Fixes

    (There are 60 seconds to one minute written as 60"). So a Lat/Lon position coordinate can be expressed in two ways, which your Magellan GPS receiver displays as 25°47.50 or 25°47'30. The Magellan GPS receiver can also display coordinates in another common coordinate system —...
  • Page 7 "CAMP." As you walk to your skiff at the dock, the receiver continues to obtain position fixes; these are "updates" to the first fix obtained. Once at the dock, you save the current position fix as waypoint "DOCK." Instead of travelling directly across the lake to the inlet on the other side, you make a detour to the buoy to avoid an area you know is too shallow for your craft.
  • Page 8 The first thing you have to do is to return to your skiff, which you do by getting a current position fix, then setting a Direct-To course. A Direct-To course is a straight line from your current position to the waypoint you select.
  • Page 9 Navigating with a Route To be sure that you avoid shallow or rocky areas, you must stay on course. Any time you stray from the courseline of the current leg, the Magellan GPS receiver will display a cross track error, or XTE.

  • Page 10: Tutorial

    The Magellan GPS receiver displays XTE graphically on a course deviation indicator, or CDI. The CDI displays the courseline at the center of a scale, and your current position relative to the courseline is shown as a symbol. When you are to the left of the courseline, the symbol is to the left of the CDI's center.
  • Page 11 Eastings are an east/west measurement, and correspond roughly to longitude. Northings are a north/south measurement, and corre- spond to latitude. This chart shows Magellan's position described in both Lat/Lon and UTM coordinates. Your GPS receiver can display coordinates in all of the manners shown.
  • Page 12 APPLICATIONS In addition to the use described in the preceding example, the Magellan GPS receiver is ideally suited to a wide variety of outdoor activities, including: Backpacking — you have the freedom to explore places that are off the beaten path or snow-covered areas with the...
  • Page 13 POWER The receiver is powered by three AA batteries. lt can also be powered from an external DC power source by using the optional Magellan Power/Data Cable. We suggest using AA alkaline batteries to power the receiver. Batteries. (Magellan Systems recommends Eveready Energizer batteries.) Alkaline...

  • Page 14: The Antenna

    NMEA stan- dards. (Do not use a non-Magellan cable, which may damage the receiver and will void the warranty.) THE ANTENNA The receiver has an attached quadrifilar antenna, which rotates 360°.
  • Page 15 INITIALIZATION Initialization is the preparation you do before the receiver is used for the first time or after memory loss. lt should also be done when the receiver is moved 300 miles or more from its last position fix. You can enter only the initial position and the current date and time, or you can completely customize how the receiver displays information.

  • Page 16: Initial Position

    By entering an initial position you are informing the receiver Initial Position. of approximately where it is; you should know this position within 300 miles (approximately 480 km). If you do not know your coordinates, refer to the City Reference Chart to key in the coordinates of the nearest City. To enter an initial position: Press AUX/SETUP, and the LEFT ARROW.
  • Page 17 Next, the receiver displays prompts for current time input. Key in the local time on an AM/PM clock and press ENTER. The Magellan GPS receiver can display time on a 24-hour local clock, a 12- hour local clock (AM/PM), or UT. UT, or Universal Time Coordinated, is the ti me that is current at the Prime Meridican.
  • Page 18 Press the UP/DOWN ARROW to toggle between Lat/Lon and UTM. (Default is Lat/Lon displayed as degrees/minutes.) Press ENTER. If Lat/Lon was selected, the receiver shows the two available display options. Press the UP/DOWN ARROW to select de- grees/minutes or degrees/minutes/seconds. Press ENTER to return to the SETUP menu.
  • Page 19 The Magellan GPS receiver can display position fixes in twelve of the most commonly used datums. (Default is WGS84.) Using an incorrect datum may cause the receiver to display position coordinates that differ from those on the map. Whenever possible, set the receiver to use the datum that was used to create the map or chart you are using;...
  • Page 20 From the SETUP menu, highlight "MAP DATUM" and press ENTER. The first four datums are displayed. Press the DOWN ARROW to scroll through the 12 datums until the desired one is highlighted. Press ENTER to return to the SETUP menu. This setting determines whether the receiver will compute Elevation Mode.
  • Page 21 Backlight Brightness. The intensity of the backlight can be adjusted. This is most easily done when the backlight is on. (Default is high.) From the SETUP menu, highlight "LIGHT BRT." and press ENTER. Press the UP/DOWN ARROW to toggle between LOW and HIGH.
  • Page 22 of the sky to locate and acquire sufficient satellites, the receiver will be unable to obtain a position fix. The receiver should also be set to either 2D or 3D operation (not AUTO) for the best results. If 2D is selected, be sure the elevation at INITIAL POSITION is correct.
  • Page 23 You will also be able to identify the best and safest path from one place to another. Magellan Satellite Navigators can provide position output in two different coordinate systems, Lat/Lon and UTM. Charts use the Lat/Lon coordinate system, an example of which is presented below.
  • Page 25 SPHEROID CLARKE 1866 ....................GRID 1,000 METER, UTM ZONE 11 (BLACK NUMBERED LINES) ........ PROJECTION TRANSVERSE MERCATOR ..............VERTICAL DATUM NATIONAL GEODETIC VERTICAL DATUM OF 1929 ....HORIZONTAL DATUM 1927 NORTH AMERICAN DATUM ..........CONTROL BY USGS, NOS/NOAA, AND USCE ...............
  • Page 26 This tutorial is designed to Show you how to • enter, rename and delete waypoints • create and reverse routes • set a Direct-To route • set an MOB route lt is easiest to use this tutorial if the receiver has no waypoints or route in memory.
  • Page 27 WAYPOINTS Waypoints are accessed with the POS/WPT key. Press POS/WPT, followed by CLEAR. The receiver displays "DEFINE WAYPOINT" and the cursor is active an the first line. Press the RIGHT/LEFT ARROWS to see how the cursor moves. Press the UP ARROW to scroll through the characters (letters and numbers) in order.

  • Page 28: Coordinates

    Enter the coordinates for longitude. The longitude for Seattle is 1 22°18.50 W. Key in 122 18 5. If necessary, move the cursor to the hemisphere space and press the UP/DOWN ARROW to select W. Press ENTER to move to the next line. Enter the elevation.
  • Page 29 To create a route: Press NAV/ROUTE, then the LEFT ARROW. The route menu is displayed. Since there are no routes in the receiver's memory, only two options are displayed , "SET ROUTE" and "BACKTRACK." Use the UP/DOWN ARROW to high light "SET ROUTE"...
  • Page 30 ARROW to highlight "REVERSE ROUTE." (Since a route has been entered, both "REVERSE ROUTE" and "CLEAR ROUTE" are now options.) Press ENTER, and the route is autotmatically reversed. READING THE POINTER DISPLAY The receiver has three different navigation displays. Navigation (the central display of the NAV/ROUTE key), Navigation2 (NAV, UP ARROW) which displays navigation information textually, and the Pointer display (NAV, DOWN ARROW), which displays the information graphically.
  • Page 32 BACKTRACK Backtrack is similar to Direct-To, but is better suited to longer distances. Before leaving your camp, clear all of the last fixes in the buffer. As you travel, the receiver will automatically save one position fix every 10 minutes to the buffer (if the receiver is on).
  • Page 33 An initial position or a current position fix is required to use this feature. To enter an MOB route: 1. Press NAV/ROUTE and the RIGHT ARROW. The receiver displays MOB and the waypoint library. MOB should be high- lighted. Press ENTER. REMEMBER The navigation displays provide a lot of information, but most of it is related to the destination of a route, a Direct-To route, a Backtrack route, or an MOB...

  • Page 34: Global Positioning System

    WHAT IS GPS? GPS is a constellation of navigation satellites that orbit the earth. The precise ti me and position information transmitted by these satellites is used by a GPS receiver to triangulate a position fix. The system is expected to be completed during 1994, and will provide continuous, 24-hour 3D (position plus elevation) coverage anywhere on the earth.

  • Page 35: 31; More Information

    GPS remains the best available source of accurate, repeatable navigation and positioning information. MORE INFORMATION For information relating to the operation of your Magellan GPS recevier, call Magellan at (909) 394-5000 and ask for Customer Service. General information on the Global Positioning System and satellite status is available from the Civil GPS Information Center (GPSIC) in Virginia.

  • Page 36: Specifications

    TECHNICAL NOTES Specifications Size 6.125" x 3.5" x 1.25", not including antenna (15.6 cm x 8.9 cm x 3.2 cm) Weight 1 4 ounces (0.397 kg), with batteries installed Temperature: operating 14°F to 140°F (-10°C to 60°C) storage -40°F to 167°F (-40°C to 75°C) Case waterproof (non-submersible) Antenna...

  • Page 37: External Antenna

    Magellan Initialization Map If any of these items is missing, please contact your local Magellan dealer or distributor. OPTIONAL ACCESSORIES In addition to the items provided with the receiver, optional accessories are also available.
  • Page 38 frozen display, Remove the batteries and wait for the receiver to keypad does not turn off. (If operating from external power, respond disconnect power before removing the batteries.) Use the four-finger reset (AUX, NAV, CLEAR, and ENTER, pressed together). no power Check how the batteries were inserted into the tray;...
  • Page 39 Small changes in the position coordinates and position fix elevation are normal. They are caused by several fluctuates variables, including the geometric quality of the fix and the effects of SA. (Geometric quality is a measurement of the probable accuracy of a fix)
  • Page 40 Magellan Systems Corporation. © 1994 by Magellan Systems Corporation. All rights reserved. , Meridian GPS , Backtrack...
  • Page 41 960 Overland Court, San Dimas, CA 91773 (909) 394-5000 22-60005-012...

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