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Magellan Trailblazer XL, Справочное руководство

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Satellite Status. Satellite Status displays the locations of each available satellite, rela-
tive to your location. 

Press the  DOWN ARROW. LEFT ARROW 
from the Location 1 screen. The satellites 
whose numbers are highlighted are the ones 
being used for location fixes. 

Satellite location is described by height above the horizon, or elevation, and location 

relative to north, or azimuth. Both values are expressed in degrees. The outer circle 

represents the horizon, or 0° elevation. The next circle is 45° elevation. The center of 

the two circles is 90° elevation, or directly above your location. Azimuth is measured 

from north (at the top of the screen) in a clockwise direction. In the example shown, 
satellite 26, which is being used in the location fix, has an elevation of about 20° and 
an azimuth of 180° (true or magnetic; depending on which you selected in SETUP). 
Satellite 5 is at 0° elevation and 135° azimuth. 

Sun/Moon Cycle. The receiver will compute the sunrise/sunset and lunar cycle for the 

present location on the date you select. 

Press the DOWN ARROW, RIGHT ARROW 
from the Location 1 screen. The cursor is ac-
tive on the date. Key in the desired date and 
press ENTER.  After a moment, the receiver 
displays the time of sunrise and sunset, and 
which phase the moon will be in on the se-
lected date. 

Last Location Buffer. Fixes are regularly saved to the Last Location buffer — how 

often they are saved you select in Setup. The fixes in the buffer are called the Last Loc 
fixes. They can be viewed and saved as landmarks. They can also be used to compute 
how far you've travelled between two selected locations. 

Press the LEFT ARROW from the Location 1 
screen. Last Loc fixes are given temporary 
names in the LLC plus a number. The 
higher the number, the older the Last Loc fix 
is. Fix +LLC18 is older than +LLCO2. 

20 

Using Your Magellan Receiver 

Содержание Trailblazer XL

Страница 1: ...Magellan GPS Satellite Navigator Reference Guide Trailblazer XL ...

Страница 2: ...f field experience With your receiver are two documents the Reference Guide and the Field Guide Like the Magellan Trailblazer XL the Field Guide is tough and ready to go where ever your adventures take you Printed an waterproof paper its purpose is to explain how to operate the receiver in any weather When not in use the Field Guide fits neatly in the carrying case that is provided with the receiv...

Страница 3: ... 9K 40K 49 9K 50K 59 9K 60K 74 9K 75K 99 9K 100K Where did you hear of Magellan GPS Satellite Navigators Magazine Dealer Friend Other Which magazines do you read regulary Type of boat Power Sail Commercial N o n e S iz e Have you participated in any of the activites listed below in the last 12 months If so please indicate the number of days you spent an each activity 1 9 1 39 40 days 1 9 1 0 39 40...

Страница 4: ...Place Postage Here Magellan Systems Corporation 960 Overland Court San Dimas California 91773 Registration Card ...

Страница 5: ...operation and to maintain memory The receiver can also be operated from external power batteries are still required to provide memory backup Installing batteries and using external power is described in General Maintenance TURN THE RECEIVER ON Press and release If batteries are installed correctly or if external power is being used three displays quickly appear These start up screens are then repl...

Страница 6: ...eiver at a comfortable angle The receiver automatically displays the last known coordinates an power on while it looks for satellites to compute a new fix A current fix is displayed when the time and date appear near the bottom of the screen SEARCHING for Receiving Data Location Fix Computed Satellites To return to the Location screen from another feature press ...

Страница 7: ...heading Keep the icon and the arrow aligned to stay an course SAVE THE LOCATION FIX AS A LANDMARK Once the receiver has a fix and the first location fix has been saved as a landmark start moving around When you are at least 100 meters from your first location try saving another location fix as a landmark CREATE A GOTO ROUTE ...

Страница 8: ...avigation 42 Navigation Screens 43 Coordinate Systems 48 Lat Lon 48 UTM 49 OSGB 50 User Grid 50 General Maintenance 51 Power Sources 51 The Antenna 52 53 Specifications 54 Accessories 60 Global Positioning System 61 What is GPS 61 How Does GPS Work 61 Accuracy 62 DGPS 62 More Information 62 Glossary 64 Attachments City Reference Chart A 1 Listing of Available Datums A 4 Troubleshooting ...

Страница 9: ...es can be affected by the periodic adjustments to GPS satellites made by the U S Government and is subject to change in accordance with the Department of Defense civil GPS user policy and the Federal Radionavigation Plan USE CAUTION Accuracy can also be affected by poor satellite geometry When the accuracy warnings appear on the screen use the data with extreme caution USE PROPER ACCESSORIES Use o...

Страница 10: ...dure The explanation provides information The procedure describes which keys to press to produce a specific result When an explanation refers to the receiver s keys the key name appears in normal type When the key is referred to in a procedure the key s name will be appear in bold text The key must be pressed to complete the procedure being described The receiver has several types of keys The func...

Страница 11: ...e SETUP MENU If you press the RIGHT ARROW you will access the AUX MENU Most screens do not display a menu Just remember if an arrow appears in the lower corner of the display other screens are available Sometimes the arrow icons are inverted These are called input or edit arrows They appear when the arrow keys can be used to make selections in a menu or enter data If the inverted UP DOWN ARROWs ap...

Страница 12: ... the next line Help screens aren t available for the SETUP and AUX menus To exit these features just press any function key The Status Line Most screens have a status line at the bottom of the display lt does not appear on the help screens The status line provides information about the status of the location fixes being computed the power supply which arrow keys are active and which arrow keys are...

Страница 13: ...ompute a location fix drops below a minimum level This has a minimal effect an accuracy and is intended only to alert you that a Signal may soon be lost Two Dimensional The 2D icon indicates that the receiver is not receiving Signals from enough satellites at least four to compute elevation information The 2D icon is also displayed when you have selected 2D in the ELEV MODE portion of Setup Indica...

Страница 14: ...L displays information You may select for example which coordinate system will be used or whether eleva tion is shown in meters or feet Setup also includes the Initialize feature You should use this feature to enter an initial location when using the Trailblazer XL for the first time after purchase ...

Страница 15: ...t of measure Once made a selection is saved until you change it again From the Time display press the LEFT AR ROW The first four functions of the Setup menu are displayed with the first feature INI TIALIZE highlighted The arrow icons are re versed which means that pressing the UP DOWN ARROWs will move the highlight bar Initialize Initialize provides the receiver with a starting location so it can ...

Страница 16: ... Remember that the UP DOWN ARROW steps up or down through the list of characters and the RIGHT LEFT ARROW moves the cursor to the right or left Continue entering the latitude When it matches the latitude you found in the City Reference Chart press the RIGHT ARROW to move the cursor over the hemisphere then use the UP DOWN ARROW to select N or S Once the latitude and hemisphere are correct press EN...

Страница 17: ...information You should not have to re enter an initial position unless you clear the receiver s memory or move the receiver more than 300 miles from its last location while it is off Coordinate System This feature allows you to select the coordinate system that you will use to enter and view location information The system you select will depend an the maps or charts that you are using with your r...

Страница 18: ...f the geographic or true north pole Your compass indicates the direction of the magnetic north pole De pending on where you are the difference between true north and magnetic north can be very large If you rely on your map and compass to plot your course without compensating for the difference you may find yourself very far off your planned path The Trailblazer XL can reference information to eith...

Страница 19: ...making an entry Distance Units DIST UNITS Distance Units allows you to select the unit of measure used to display distance and velocity You may select NM KNOTS ST MILES MPH or KM KPH ST MILES MPH is the default setting Elevation Units ELEV UNITS Elevation Units is the unit of measure that will be used to display your elevation Select METERS or FEET The default setting is FEET Light Brightness LIGH...

Страница 20: ...rks Map Scale Map Scale allows you to enter the scale used by your map and select a convenient unit of measure inches or centimeters The selections you make here affect the Map Project feature of Landmark Project The default setting is 1 24 000 Since Map Project uses measurements taken from your map to estimate coordinates for an unknown location the scale entered here must match the scale used by...

Страница 21: ...st differential corrections This requires the use of a differential radio beacon receiver Contact your dealer to find out if DGPS is for you and what additional equipment you will require the defined distance XTE With the alarm menu displayed you can turn an alarm on or off by press ing the ENTER key If you turn on the ANCHOR or XTE alarms may change the displayed radius by press ing CLEAR while t...

Страница 22: ...ys To turn the Simulator off press the ENTER key again Using Your Magellan Receiver 13 Breadcrumb Breadcrumb is used with the Last Location buffer When turned on Breadcrumb automatically duplicates every landmark you save with ENTER ENTER ENTER to the Last Location buffer The duplicated landmark will have an LLC name in the buffer This is in addition to the locations that are automatically saved t...

Страница 23: ...nnot acquire enough satellites to compute a fix the receiver will remain on until a fix can be computed Highlight SAMPLING and press ENTER Use the UP DOWN ARROW to select a sampling rate To turn Sampling off select OFF A check appears next to SAMPLING in the menu when any setting other than OFF is selected When Sampling is on a reminder appears on the POWER DOWN screen NMEA NMEA is the communicati...

Страница 24: ...ected Clear Memory Clear Memory is a system reset that will erase all of the receiver s memory and reset all Setup and AUX functions to their default settings Highlight CLEAR MEMORY and press ENTER The screen displays the four keys SETUP GOTO CLEAR ENTER that must be pressed at the same time to clear the receiver s memory Press any function key to exit without Clearing memory The receiver s memory...

Страница 25: ... They show location coordinates and monitor the receiver s status Getting a Location Fix To get a location fix you must be outside with a clear view of the sky You must also be away from any large obstructions such as buildings and large trees This illustration shows a good site for acquiring sat ellite signals The hiker is standing far enough away from the stand of trees to get a clear view of th...

Страница 26: ...LOC Flow Chart Using Your Magellan Receiver 17 ...

Страница 27: ...Using Your Magellan Receiver 18 ...

Страница 28: ...cal bars Read the numbers vertically the num ber of the first satellite in this example is 24 The bar above the number indicates the sig nal strength The higher the bar the stronger the signal from that satellite is Using Your Magellan Receiver 19 In a short period of time the receiver will lo cate satellites and begin to receive informa tion SEARCHING is replaced with a bar graph that indicates h...

Страница 29: ...ding on which you selected in SETUP Satellite 5 is at 0 elevation and 135 azimuth Sun Moon Cycle The receiver will compute the sunrise sunset and lunar cycle for the present location on the date you select Press the DOWN ARROW RIGHT ARROW from the Location 1 screen The cursor is ac tive on the date Key in the desired date and press ENTER After a moment the receiver displays the time of sunrise and...

Страница 30: ... points Bearing and distance to the LLC fix from the present location is at the bottom of the screen Using Your Magellan Receiver 21 Trip Summary The Trip Summary is a brief review of the distance travelled from any Last Loc fix to the present location LOC or to another Last Loc fix the time to travel from one location to the other and your speed Scroll to the desired from location use LLCO3 or ol...

Страница 31: ...22 Using Your Magellan Receiver Saving Locations as Landmarks As you use the receiver you will realize that some of the location fixes the receiver computes represent places you would like to go back to They may be a deer stand a fishing hole or where you left your truck Any location fix or last location fix can be saved as a landmark Landmarks allow you to return to a specific site at any time Tw...

Страница 32: ...us ing the UP DOWN ARROWs to select charac ters and the RIGHT LEFT ARROWs to move the cursor When the first line appears the way you want press ENTER Next edit the second line and press ENTER then edit elevation and press EN TER You may enter a message follow the prompts as before or save the waypoint without a message by pressing ENTER Using Your Magellan Receiver 23 Entering Landmarks Manually T...

Страница 33: ...mark 24 Using Your Magellan Receiver The Landmark Menu The Landmark Menu is an alphanumeric list of all of the stored landmarks lt also allows you to view a landmark s coordinates message distance from the present location the sun moon cycle at the landmark on any given date and to compute a landmark s distance from any location All landmarks are saved in the coordinate system selected for Locatio...

Страница 34: ... being used in a route Routes are described a little later The receiver will display a warning if you attempt to delete a landmark that is being used The landmark s coordinates must be displayed to delete it Highlight the landmark in the Landmark Menu and press ENTER Next press CLEAR The receiver gives you a chance to change your mind and keep this landmark To continue erasing the landmark highlig...

Страница 35: ...erent from location When the desired location is displayed press ENTER Next key in the distance from the selected location and press ENTER Key in the bear ing and press ENTER The receiver computes and displays the pro jected coordinates If you want to save these coordinates as a landmark press ENTER and key in a name 26 Using Your Magellan Receiver If you selected MAP PROJECT in Setup you will sel...

Страница 36: ...s ENTER Next key in bearing from the selected loca tion and press ENTER Select the second location and press ENTER then enter bearing from the second location and press ENTER again Using Your Magellan Receiver 27 If you selected TRIANGULATE in Setup you will select two from locations and enter a bearing from each location to compute the estimated location coordinates Press the UP ARROW from the Lo...

Страница 37: ...R GOTO Flow Chart 28 Using Your Magellan Receiver GOTO The GOTO screens include all of the navigation displays and the route features You can display some navigation information without having a route but not all Basically only speed and heading can be computed if you haven t entered a route and turned it on ...

Страница 38: ...ht the destination the destination the land mark named at the top of the screen is reached and displays the heading arrow The pointer is also displayed by pressing GOTO once Viewing Navigation Information The Trailblazer has seven different screens to help you navigate to the destination Some of these screens can be modified and set for your particular needs You are currently viewing the Pointer s...

Страница 39: ...Using Your Magellan Receiver 30 ...

Страница 40: ...en use the UP DOWN ARROWs to change the CDI scale Press CLEAR again to exit from the Edit Mode Return to the Pointer screen by pressing the LEFT ARROW Now press the UP ARROW This is the Steering screen The destination s bearing is shown on the top half of the com pass The bottom half shows your heading When the two compass arrows are aligned you are on course The arrow in the lower right of the sc...

Страница 41: ...r range to a landmark Use the UP DOWN ARROWs to change the scale then press CLEAR to display the plotter at the new scale cursor appears on the screen Move the cur sor with the RIGHT LEFT ARROWs When the cursor is over a landmark icon press EN TER to display the landmark s name in the lower left corner Press ENTER a second time to create a GOTO route to the selected land mark The cursor will disap...

Страница 42: ...into range The center line represents the planned course and the sides of the road are the limits of the CDI Bearing and distance to the destination are above the road Press CLEAR You can now use the UP DOWN ARROWs to change the scale of the Road screen Press CLEAR again to exit the Edit Mode Multileg Routes Multileg routes require a little more time to enter but they can provide more flexibility ...

Страница 43: ...is selected as the start ing location To use a different location press the RIGHT LEFT ARROW until the desired landmark is displayed Press ENTER The highlight moves down a line Now you will select the destination of the first leg using either the RIGHT LEFT ARROW or Smart Scroll Notice that as different land marks are displayed the screen shows the landmark s bearing and the distance from the FROM...

Страница 44: ...have displayed a warning asking if we wanted to replace the existing route with a new one Activating and Deactivating Routes Only one route multileg BACKTRACK GOTO or MOB can be active in use at any time A multileg route is automatically activated when you create it so are the BACKTRACK GOTO and MOB routes Any route that is active when another route is created will automatically be deactivated Mul...

Страница 45: ...Press the UP DOWN ARROW to scroll through the route When the desired leg is displayed press ENTER to activate it Although you can overwrite an existing route Clearing is a much safer way to remove an unneeded route from the receiver s memory We recommend that you make a habit of using Route Clear to help prevent accidentally replacing an impor tant route 36 Using Your Magellan Receiver Clearing a ...

Страница 46: ...RROW to view the next leg The new leg has been added that starts at the new landmark and ends at the old TO landmark Clearing Leg Another way to change an existing route is to delete any leg You will now clear the leg you just added returning the route to its original configuration First you must display the route Press GOTO LEFT ARROW If the route you want is not active highlight in the Route Men...

Страница 47: ...t the route you want to reverse and press ENTER Next highlight REVERSE ROUTE and press ENTER again Backtrack Another type of route is the Backtrack route Backtrack uses the Last Loca tion fixes in the buffer up to 25 of the most recent Last Locations to create a route that backtracks the course you took This way you could leave point A travel for a couple of hours then set a backtrack route and le...

Страница 48: ...andmark it is always the current location Think of it this way you re out with some friends in your speedboat when you hear a splash You immediately press GOTO GOTO ENTER The location that was current when these keys were pressed is saved as the to landmark But you re still moving and by the time you can cut Speed and turn around you may be some distance from the to landmark The current location i...

Страница 49: ...Menu 6 INITIALIZE 6 COORD SYSTEM 8 NORTH REFERENCE 9 TIME DISPLAY 9 MAP DATUM 10 ELEV MODE 10 DIST UNITS 10 ELEV UNITS 10 LIGHT BRT 10 CONTRAST 1 0 GOTO SORT 10 UTM GRID PLOT 13 LMK PROJECTION 13 MAP SCALE 13 ALARM 13 The AUX Menu 12 SOFTLOCK 12 DGPS 1 2 SIMULATOR 13 BREADCRUMB 13 LAST LOCATION 1 3 SAMPLING 14 NMEA 14 VELOCITY AVERAGING 15 CLEAR MEMORY 15 ERASE LMKS 1 5 ERASE LLOC 15 ERASE TRACK 1...

Страница 50: ... Landmark Menu 24 Deleting Landmarks 25 Landmark Projection 26 GOTO 28 Flow Diagram 28 Creating a GOTO Route 29 Viewing Navigation Information 29 Pointer Screen 29 Navigation 31 Steering Screen 31 Navigation 2 Screen 31 Plotter Screen 32 Plotter Setup 32 Distance Screen 33 Road Screen 33 Multileg Routes 33 Activating and Deactivating a Route 35 The Active Leg Screen 36 Clearing a Route 36 Editing ...

Страница 51: ...hat way you ll be able to create a route back to camp at the end of the day even if darkness or weather conditions make it difficult to use your own navigation skills You know from Chapter 1 that to save a location fix as a landmark you display the fix on Location 1 or Location 2 and press ENTER if you want to let the receiver name the landmark press ENTER again or key in a name You are more likel...

Страница 52: ...can add a message which may include information about the landmark or the approach to the landmark You might key in WATCH FOR ROCKS for example or something else you might need to be reminded about as you approach the land mark Press ENTER again to save the landmark Now you walk down to the dock where you save the location as landmark The most direct route to the island will take you through an ar...

Страница 53: ...er right to close the XTE to get the destination the buoy faster The CDI course deviation indicator is a graphic representation of XTE The straight line at the center of the course marker and the current location is the icon to the left of the marker When you are on course the icon is over the courseline The number next to the CDI is the CDI scale or the distance represented from the courseline to...

Страница 54: ...en use the arrows to select different values The default values are shown here SOA is speed of advance Understanding SOA can be a little tricky so we ll use a slightly exaggerated example here The boat in this Illustration is heading toward the buoy and is currently at point A If the boat had followed the planned course it would B GPS Navigation 45 be somewhere on the line A1 and B1 The XTE for th...

Страница 55: ...ring and heading 46 GPS Navigation DMG is distance made good The same example illustrates DMG Even though the boat moved 17 NM because of the cross track error only 15 NM can be applied to arriving at the buoy The distance that is applied to the original course A1 B7 is referred to as DMG In this example DMG is 15 NM VMG is the velocity made good lt is the portion of the velocity speed that is in ...

Страница 56: ...t the center of the screen and the edges of the road are the CDI limits Any nearby land marks are also shown GPS Navigation 47 You are on course when the arrows on the Steering screen or the arrow and icon on the Pointer screen are aligned The PLOTTER screen is a graphical overhead view of your location and the surrounding landmarks lt also shows your planned and actual course The display scale ca...

Страница 57: ...ocation at 34 10N and 118 23W is always one location and one location only The Trailblazer XL displays coordinates in three of the most commonly used coordinate systems A fourth selection User Grid lets you enter the constants for a local grid such as state plane coordinates Your Trailblazer XL can use two coordinate systems at one time one for Location 1 and the other Location screens and one for...

Страница 58: ...uad sheets that are produced by government map providers On land you may find that UTM coordinates are easier to use than Lat Lon UTM coordinates are easy to use but since the model it is based on is somewhat abstract this section is a very simplified introduction to UTM Instead of projecting an imaginary grid of intersecting lines onto the globe UTM projects sections of the globe onto a flat surf...

Страница 59: ...ate system is selected in Setup While OSGB coordinates must be used with the GBR36 datum the GBR36 datum can be used with Lat Lon coordinates just be sure the map you are using uses both Lat Lon and GBR36 User Grid Coordinates There are many grid coordinate systems in general use but most have highly special ized applications Just in case you need to use one of these coordinate systems the Trailbl...

Страница 60: ...l Power Data Cable Batteries We suggest using AA alkaline batteries to power the receiver Magellan Systems recommends Eveready EnergizerTM batteries Alkaline batteries will power the receiver for 5 hours or more of continuous Operation To install the batteries hold the receiver as shown in the illustra tion at the right At the same time press down slightly on the battery compartment cover and pull...

Страница 61: ...e clearest view of the sky In order to provide the best signal reception possible the antenna must be vertical If attached to the receiver rotate the antenna from its storage position to the upright position If detached from the receiver the antenna should be mounted as vertically as possible with the connecting cable at the bottom GPS signals will pass through glass and canvas such as bimini tops...

Страница 62: ...be frozen Try pressing any key to change the display If the display cannot be changed refer to frozen display General Maintenance 53 Make sure the antenna is in the upright position and has a clear view of the sky Try changing your location slightly to get a better Signal OR The receiver has not been initialized the Initialize screen in Setup shows the null location or it has been moved more than ...

Страница 63: ...evice is on If supporting an autopilot be sure that a route has been set and activated The receiver must compute three location fixes before navigation data can be calculated You must also be navigating on a route To display velocity related information such as speed and course over ground you must be travelling at least 1 mph OR You are 200 feet 61 meters or less from your destina tion The effect...

Страница 64: ...utopilot data and satellite data General Maintenance 55 Operating Characteristics Accuracy Position 12 meters RMS in 3D operation without SA Velocity 0 5 meters second RMS Speed limit up to 951 miles per hour 1 530 kilometers per hour Elevation limit 57 414 feet 17 500 meters Time to First Fix Cold start 2 minutes or less Warm start 40 seconds or less In a warm start the receiver has obtained a po...

Страница 65: ...teer origin destination landmark landmark location bearing to destination and velocity toward the destination RMC Time latitude longitude speed over ground course over ground and date VTG Track magnetic and true and ground speed knots and KPH OUTPUT DATA FORMAT APA Autopilot Format A 1 2 3 4 5 6 7 8 9 10 APA A A X XX L N A A XXX M CCC 1 OR ed Blink and SNR A valid V invalid 2 Cycle Lock A valid V ...

Страница 66: ...t location to destination Magnetic or True 13 14 Heading to steer to destination landmark Magnetic or True BWC To Selected Landmark Great Circle 1 2 3 4 5 6 7 8 9 10 11 12 BWC XXXXXX XXXX XX N XXXXX XX W XXX T XXX M XXX X N CCCC 1 UTC of Bearing 2 3 Lat N or S of landmark 4 5 Long E or W of landmark 6 7 Bearing True 8 9 Bearing Magnetic 10 11 Distance naut miles 12 Landmark identifier GGA Global P...

Страница 67: ...n DGPS is not used 14 Differential reference station ID 0000 1023 GLL Geographic Location Latitude Longitude 1 2 3 4 5 6 GLL 1111 11 a yyyyy yy a hhmmss ss A hh 1 2 Latitude N S 2 3 Longitude E W 4 UTC of location 6 Status A Data valid RMB Generic Navigation Information immediately follows RMC 1 2 3 4 5 6 7 8 9 10 11 12 RMB A X XX L CCCC CCCC SSS SS N XXXXX XX W XXX X XXX XX X 13 14 A XX 1 Status ...

Страница 68: ...s sentence RMC Transit Specific to be followed by RMB 1 2 3 4 5 6 7 8 9 10 12 RMC XXXXXX A XXXX XX N XXXXX XX W XX X XXX XXXXXX XX E XX 1 Time UTC 2 Status A valid V invalid 3 4 Latitude at UTC time N or S 5 6 Longitude at UTC time E or W 7 Speed over ground knots 8 COG track degrees 9 Date DDMMYY 10 Variation degrees 11 Variation sense E or W 12 CHECKSUM Mandatory in this sentence VTG Actual Trac...

Страница 69: ...t The Extension Cable and Suction Cup Mount are required to operate with the quadrifilar antenna detached Do not alter the length of the antenna extension cable or use a non Magellan cable as this may adversely affect receiver sensitivity External Antenna An external antenna that is mounted to a range pole or vehicle roof in order to provide satellite signals to the receiver when being operated in...

Страница 70: ...ning Service SPS code All commercial and consumer GPS receivers are SPS receivers HOW DOES GPS WORK Each GPS satellite transmits its precise position location and elevation and the start time of the transmission A GPS receiver acquires the signal then measures the inter val between transmission and receipt of the signal to determine the distance between the receiver and the satellite this is rangi...

Страница 71: ...e source of accurate repeatable navigation and positioning informa tion If you feel that you really need 25 meter accuracy the effects of SA can be overcome with a technique called broadcast differential to produce highly accurate location fixes DGPS Differential GPS DGPS computes the size of the error and applies it to positioning information There are several ways to perform DGPS one of which is...

Страница 72: ...at 703 313 5910 parameters 8 data bits 1 stop bit no parity 3 24 hour live Operator at 703 313 5900 Navtech provides seminars for a fee and books on GPS and navigation The Navtech bookstore can be reached at 800 NAV 0885 or 703 931 0500 or at FAX 703 931 0503 There are other sources for GPS information ranging from free governmentally pro duced literature to purchased professional literature and s...

Страница 73: ...destination ETA Estimated time of arrival at the destination Heading The direction of movement expressed as a bearing Also called ground course Landmark Either a location fix that has been saved in the receiver s memory or the coordinates of a location that has been entered manually Land marks are most frequently used to create routes Location Fix Your location or position coordinates as determine...

Страница 74: ...eading that must be made to get back an course Track The actual path travelled which may differ from the planned course Track History The track over a selected length of time TTG Time to go The length of time until the destination is reached VMG Velocity made good The component of velocity that is in the di rection of the destination VMG Bar A graphic display of VMG in relation to SOG XTE Cross tr...

Страница 75: ...8 20 E Saratov 51 30 N 45 55 E Colombo 6 55 N 79 52 E Tashkent 41 16 N 69 13 E Delhi 28 40 N 77 14 E Tulun 54 32 N 100 35 E Hanoi 21 01 N 105 52 E Vanino 49 05 N 140 14 E Harbin 45 45 N 126 41 E Vladivostok 43 09 N 131 53 E Ho Chi Minh City 10 46 N 106 43 E Vorkuta 67 27 N 64 00 E Hong Kong 22 15 N 114 10 E Yakutsk 62 10 N 129 50 E Islambad 33 40 N 73 08 E Middle East Jakarta 6 08 S 106 45 E Al Ku...

Страница 76: ...41 W 40 51 N 14 17 E Nice 43 42 N 7 15 E Nuugaatsiaq 71 30 N 53 00 W Oslo 59 55 N 10 45 E Paris 48 52 N 2 20 E Reykjavik 64 09 N 21 51 W Scoresbysund 70 30 N 22 00 W Stensele 65 05 N 17 10 E Stockholm 59 20 N 18 03 E Thule 76 35 N 68 30 W Torshavn 62 02 N 6 47 W Trabzon 41 00 N 39 43 E Vardo 60 16 N 20 20 E The Americas Albany NY 42 39 N 73 45 W Alburquerque 35 05 N 106 39 W Amarillo 35 14 N 101 5...

Страница 77: ...4 53 W 39 32 N 119 49 W 22 54 S 43 14 W 40 45 N 111 53 W 29 25 N 98 29 W 37 46 N 122 25 W 1 8 28 N 66 07 W 2 26 S 54 41 W Säo Paulo 23 32 S 46 37 W Saskatoon 52 10 N 101 32 W Seattle 47 36 N 122 19 W Shreveport 32 30 N 93 46 W Sioux Falls 43 34 N 96 42 W Spokane 47 40 N 117 25 W St Louis 38 37 N 90 11 W Tampa FL 27 58 N 82 38 W Tijuana 32 32 N 117 01 W Toronto 43 39 N 79 23 W Valparaiso Brazil 21 ...

Страница 78: ...0 OEGYP Central America NAD27 CENAM Hawaii Old Hawaiian OHAWA Chatham 1971 CHATH Oman OMAN Chau Astro CHUAA Pitcairn Astro 1967 PITCA Corrego Alegre CORRE Qatar National QATAR Cyprus European 1950 CYPRU Qornoq QORNO Djakarta Batavia DJAKA RT90 Sweden RT90 Egypt European 1950 EGYPT Provisional So Am 1956 SAM56 Europe military datum EUROP South American 1969 SAM69 European 1950 EUR50 Schwarzeck Nami...

Страница 79: ...accessories which are covered by this warranty Repairs under this warranty shall only be made at an authorized Magellan Service Center 3 PURCHASER S DUTIES To obtain warranty service the purchaser must return the receiver or accessories postpaid with proof of the date of original purchase and purchaser s return address to Magellan Authorized Service Centers Magellan Systems Corporation will not be...

Страница 80: ...responsible for such damages even if Magellan Systems Corporation has been advised of the possibility of such damages Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you 7 MERGER This written warranty is the complete final and exclusive agreement between Magellan Systems Corporation and the purchaser ...

Страница 81: ...or mechanical including photocopying and recording for any purpose other than the purchaser s personal use without the written permission of Magellan Systems Corporation Copyright 1994 by Magellan Systems Corporation All rights reserved MagellanTM Trailblazer XL GPSTM BacktrackTM and SoftlockTM are trademarks of Magellan Systems Corporation ...

Страница 82: ...960 Overland Court San Dimas CA 91773 909 394 5000 22 60026 000 ...

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