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Magellan MobileMapper - GPS Software User Manual

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  • Page 1 MobileMapper ™ User Manual...
  • Page 2 NAL PURCHASER OF THIS PRODUCT. prietary right, including trade secrets; and (8) any damage due In the event of a defect, Magellan Navigation will, at its op- to accident, resulting from inaccurate satellite transmissions. tion, repair or replace the hardware product with no charge to Inaccurate transmissions can occur due to changes in the po- the purchaser for parts or labor.
  • Page 3 (6) service performed or attempted by anyone other than an THIS PRODUCT. authorized Magellan Navigations Service Center; In the event of a defect, Magellan Navigation will, at its op- (7) any product, components or parts not manufactured by tion, repair or replace the hardware product with no charge to Magellan Navigation, the purchaser for parts or labor.
  • Page 4 For further information concerning this limited warranty, please call or write: Magellan Navigation SA - ZAC La Fleuriaye - BP 433 - 44474 Carquefou Cedex - France. Phone: +33 (0)2 28 09 38 00, Fax: +33 (0)2 28 09 39 39...

  • Page 5: Table Of Contents

    Table of Contents Introduction to the MobileMapper Pro System .......1 MobileMapper Pro Field Unit ............. 3 Keypad Description ..............3 Installing the SD Card and the Batteries ......... 4 Turning Power On/Off............5 Setting the Screen Backlight ..........6 Setting the Units ..............6 Getting a Position Fix............
  • Page 6 Selecting a POI as the Destination Point ....... 49 Saving Your Current Position as a Waypoint ......50 Creating a Waypoint With the Map Cursor......50 Editing/Deleting a User Waypoint ......... 51 Routes ..................52 GOTO Route ............... 52 Multi-leg Route ..............52 Creating a Multi-leg Route..............52 Activating/deactivating a Multi-Leg Route ........53 Other Functions Tied to Routes............54...
  • Page 7 Defining a User Map Datum ............80 ∆a and ∆f of Frequently Used Datums ........81 Glossary ..................82 Index ..................85...
  • Page 8 viii...

  • Page 9: Introduction To The Mobilemapper Pro System

    Introduction to the MobileMapper Pro System The MobileMapper Pro system from Magellan is composed of two main elements: the MobileMapper Pro receiver and Mo- bileMapper Office software running on a PC-type computer. The MobileMapper Pro receiver is a handheld navigation and...

  • Page 11: Mobilemapper Pro Field Unit

    1. MobileMapper Pro Field Unit Keypad Description The scrolling button has Under the screen you will see 8 buttons located around a large three different functions: oval “scrolling” button with 4 directional arrows on it. • It is used to move the IN/OUT: Use these buttons GPS antenna (inside the housing) cursor in the chosen...

  • Page 12: Installing The Sd Card And The Batteries

    Installing the SD Card and the Batteries - Slide the two tabs on the back of the receiver to the left SD Card and remove the battery compartment door. MobileMapper Pro - Hold the SD card with 2 fingers with the label facing you. ships with a 16-MB SD - Place the top of the SD card in the channel provided in card, but you can use...

  • Page 13: Turning Power On/Off

    Turning Power On/Off In the Power-On procedure described below, it is assumed The very first time you that the receiver has already been used in a working session use your MobileMapper and so position data is available from the former working ses- Pro, or after erasing all sion to help MobileMapper Pro compute its position.

  • Page 14: Setting The Screen Backlight

    Setting the Screen Backlight The screen backlight can be set to one of three levels (low, To prevent acciden- tally turning the back- high or off). At power on, the screen backlight is set to high light on and leaving it level.

  • Page 15: Getting A Position Fix

    Getting a Position Fix The unit is designed to fit comfortably in your hand. Hold the MobileMapper Pro in the palm of your hand with the top end of the receiver pointing towards the sky. MobileMapper Pro's internal antenna, located in the top end of the receiver, needs to have a relatively unobstructed view of the sky.

  • Page 16: Initialization For First-Time Use

    Initialization for First-Time Use MobileMapper Pro’s software will walk you through the pro- cess of setting up the receiver for first time use. This proce- Skipping Initialization dure is commonly referred to as “Initializing the Receiver.” You can skip the initial- The purpose of this initialization is to provide MobileMapper ization process by pressing the NAV key...
  • Page 17 The GIS data capture and navigation software in MobileMapper Pro are available in Dutch, English, French, German, Lithuanian, Polish and Spanish. Support for the navigation software alone is available for Italian, Portu- guese and Swedish. Separate versions of the MobileMap- per Pro software are available in Russian and Chinese.
  • Page 18 6. To complete the initialization process, press ENTER again. The Satellite Status screen is dis- Satellite Signal Strength Chart: played and MobileMapper Pro begins acquiring the data from satellites. Clear bars indicate that the unit is starting to Watching the bars appear and turn solid on the screen, get information from you can progressively see the unit lock onto satellites.

  • Page 19: Gis Data Logging Functions

    GIS Data Logging Functions Feature Libraries A feature library is a Feature libraries contain lists of features that you should be hierarchical structure visiting during your field sessions. that guides you through Features are four types: the description pro- cess so you know you - Point feature: The geometrical representation of this fea- will describe thor- ture is a point.

  • Page 20: Logging New Gps/Gis Data

    Logging New GPS/GIS Data Prior to starting logging GIS data, be sure MobileMapper Pro is computing your position when you stand near the first fea- ture you want to log. For the best accuracy it is important to hold the receiver vertical and at eye level so it has a clear “view”...

  • Page 21: Logging And Describing A Point Feature

    2. Logging and Describing a Point Feature - Choose the type of feature you want to log from this MobileMapper Pro uses list. You can tell by the name of this feature whether it a fixed, time-based log- is a point feature, a line feature or an area feature. ging interval (1 second) - Highlight a point feature (you are supposed to be near when you log a point...

  • Page 22: Logging And Describing A Line Feature

    After highlighting a line feature from the Feature List spreadsheet calculator screen (for example a road) and pressing ENTER, on the Magellan Tech- MobileMapper Pro starts logging GPS positions from the nical Support ftp site position where you are. The default logging interval is 5 (ftp://ftp.magel-...
  • Page 23 Two options are then prompted: By Time: Select this option when you want to log a new GPS position at regular intervals of time regardless of the distance traveled since the last position logged. After highlighting this option, press ENTER, choose a time interval from the list and press ENTER.

  • Page 24: Logging And Describing An Area Feature

    If you wish to change the logging interval while you are logging a line feature, you first need to pause the logging of the feature: - Press MENU, highlight Pause <line feature name> and press ENTER - Press MENU again, highlight Logging Interval, press ENTER and set the new logging interval as explained above.

  • Page 25: Pausing A Feature

    The receiver determines the perimeter of an area feature by estimating the distance between successive points on the line feature with the assumption that each point is on a sphere of average Earth radius. The elevations of the points are not factored into the equation. Thus the receiver calculates the spherical distance rather than the horizontal or slope distance between the successive posi- tions.

  • Page 26: Repeating A Feature

    6. Repeating a Feature If you close a point, line or area feature and want to log the location of another feature of the same type and with an identical description, use Mobile Mapper’s Repeat Fea- ture function. - After closing a feature, MobileMapper Pro takes you back to the Feature List screen.

  • Page 27: Offsetting A Point Feature

    Assuming you are logging a line feature and the Logging screen is displayed, do the following, for example to nest a point feature: - Press MENU, highlight Nest Feature and press ENTER. This pauses the logging of the line feature. - Move to the location of the feature you want to nest - In the Feature List screen now displayed, highlight the feature you want to nest and press ENTER...
  • Page 28 This displays the Point Offset screen on which you should enter the following parameters: Bearing: Compass direction to the feature from your current position. You need a compass to measure this angle (see also opposite). To input a value for Bearing, press ENTER and increment or decrement the high- lighted number using the up/down arrows.

  • Page 29: Offsetting A Line Or Area Feature

    9. Offsetting a Line or Area Feature For the same reasons as a point feature (see previous page), you may need to use the offset utility to map a line or area feature. By combining the receiver’s position with the direction and the distance to the feature, MobileMap- per Pro will automatically calculate and record the loca- tion of the feature.

  • Page 30: Logging Gis Data On A Preset Grid Feature

    Vert. Distance: Vertical distance to the feature from your current position (“0” if the feature and yourself are at Visual estimation for the same elevation -on a flat area). Enter a value for horz. & vert. distances Vert. Distance as described above for Horz. Distance. is usually good enough When you are done, press ENTER again.
  • Page 31 To log GIS data on a preset grid, do the following: - If you have created a waypoint to help you locate the first grid point, you can use any of MobileMapper Pro's navigation screens to get there. To access a waypoint file you can use to navigate to the point of beginning, press the MENU button and select the GOTO option.
  • Page 32 - Navigate to the next grid point: When you have fin- It is also possible to ished recording the first point feature, you can select navigate to any grid Next Pt at the bottom left to navigate to the next grid waypoint (or any loca- waypoint and record the next point feature within the tion for that matter) on...

  • Page 33: Changing The Parameters Of A Grid Feature Before Logging Gis Data

    If you cannot physically occupy this waypoint, but can make the necessary visual observation, you should do so and record an offset estimating the distance and bearing to the grid waypoint. If you are recording mea- surements made by an instrument, you should NOT record an offset but rather try to make a recording as close as possible to the position.

  • Page 34: Closing A Job

    In the open job, do the following: - On the Feature List screen, select the grid feature and press ENTER. On the Grid Setup screen that is now displayed, set the parameters listed below. Spacing: Distance between any two consecutive way- points in any row or column (default: 50 meters or 100 feet, depending on the units used) Columns: Number of waypoints along the axis facing...

  • Page 35: Gps Accuracy

    GPS Accuracy MobileMapper Pro provides 5- to 10-m autonomous accuracy around the globe assuming the receiver is tracking five GPS satellites and the PDOP < 4 (which is almost all the time). MobileMapper Pro is also capable of providing 2- to 3-m hor- izontal accuracy using real-time differential corrections from its built-in WAAS/EGNOS receiver.

  • Page 36: Gps Quality Indicators

    MobileMapper Pro will warn you if the PDOP, and therefore the accuracy, of your positions has dropped below the level you se- lected during Setup (see page 65, the PDOP alarm option). If you see this warning you may press the ESC button and con- tinue logging.

  • Page 37: Revisiting And Updating Existing Gps/Gis Jobs

    Revisiting and Updating Existing GPS/GIS Jobs You can use MobileMapper Pro not only to position and de- scribe new GIS features but also to update information gath- ered previously. This is particularly useful when collecting data on things that change over time: streetlight bulbs burn out, new roads are added to housing developments, new crops are planted, etc.
  • Page 38 NOTE: If the MobileMapper Pro receiver automatically shuts off due to low power while a job is open, it is better to change the batteries and create a new job with a similar name rather than append more data to to the job that was closed due to power loss.

  • Page 39: Repositioning A Point Feature

    - After arriving at the feature, press the LOG button. This takes you back to the Selected screen. - Now that you are near the feature, highlight the Edit field and press ENTER. You are now allowed to edit each of the feature’s attributes.

  • Page 40: Adding More Features And Attributes To The Job

    3. Adding More Features and Attributes to the Job If you want to add more features and descriptions to the exist- ing job, you just have to record them exactly as you record fea- tures into a new job. 4. Closing the Job To close the job, all you have to do is open up another job or turn the receiver off.

  • Page 41: Post-Processing Option

    Post-Processing Option MobileMapper Office includes a differential correction utility Note: MobileMapper that can post-process GPS measurements recorded by Mo- Office does not need an activation code. If bileMapper Pro for submeter accuracy. To record these GPS the jobs you download measurements in a MobileMapper Pro receiver, you need to to MobileMapper Office first purchase a post-processing option.

  • Page 42: Creating A New Job With The Post-Processing Option

    If you then press MENU and come back to the Setup menu, the Post-processing option will no longer be there because you only need to enter the Activation Code once. Creating a New Job with the Post-Processing Op- tion - If there is a job that is currently open, close it by pressing MENU and selecting Close Job - Press LOG.

  • Page 43: Using Mobilemapper Pro As A Reference Station

    - Use the down/up arrow to highlight Post-processing and then press ENTER. The screen now lists all the features available from the selected feature library. - At this stage, use MobileMapper Pro in exactly the same way as you would without the post-processing option being enabled.

  • Page 44: Navigation Screens

    Navigation Screens MobileMapper Map Screen Pro offers 7 dif- Press NAV ferent naviga- Satellite Status Screen Compass Screen tion screens to The Map screen has help you locate Press NAV two modes: Position yourself or navi- Speedometer Screen Large Data Screen and Cursor.
  • Page 45 The Map screen is always in the Position mode when you ac- cess this screen. In this mode, your present position is indi- cated by the large arrow icon in the center of the display. If you are moving, the arrow will point in the direction that you are heading.
  • Page 46 Select Map Info Use this option to tell MobileMapper Pro which data should be displayed at the bottom of the Map screen. This can be: - Customize Fields. This function is equivalent to the Custom- The Map screen must ize function available from all navigation screens other be in Position mode if than the Map screen.
  • Page 47 - Track Mode: Inactive (Track history disabled in MobileMap- per Pro) - Primary Usage: MobileMapper Pro can be set to either Land or Marine usage. When in Land (default), the map displays land areas in white and water areas in blue. For marine applications it may be desirable to reverse the display, showing water as white and land as blue.

  • Page 48: Compass Screen

    Compass Screen The two data fields on top are customizable. The lower portion of the Compass screen not only displays your heading in a graphical manner, but also displays the relationship of the sun, moon and your destination (if navigating on a route) to your heading.

  • Page 49: Large Data Screen

    Large Data Screen The Large Data screen is similar to the Compass screen but here the compass has been removed to allow for large display of the navigation data. This screen is ideal for when you have your unit mounted on the dashboard of a vehicle. Even from a distance the customizable information can be read with ease.

  • Page 50: Position Screens

    Position Screens Position screens #1 and #2 display your present position us- ing the coordinate systems that you have selected. This screen shows all of the basic position, time and satellite information. Additionally, on Position screen #1, current navigation infor- mation is shown in the bottom half of the screen.
  • Page 51 - Data Fields: customizable data fields (see Customize option below). Some of the data displayed requires you to be moving to be computed. Invalid data is indicated by dashes. - Trip Odometer: The odometer performs like the odometer in your car. It can be reset through the MENU button. To customize the Position screens, use the functions de- scribed below.

  • Page 52: Road Screen

    Road Screen The Road screen presents your route as if you were travelling on a road. When you need to make a turn, the road will graph- ically display the turn and the direction. Waypoint and desti- nation icons will be displayed relative to your position as they come into view.

  • Page 53: Data Screen

    Data Screen When you need to see a lot of information in one place then you will appreciate the Data screen. The Data screen provides you with six data fields and an active compass that is the same as the one used on the road screen. You have the option of customizing this screen by selecting what data is displayed in the upper six fields.

  • Page 54: Speedometer Screen

    Speedometer Screen The Speedometer screen displays your speed in a familiar graphical format. There are four additional data fields at the top of the display that can be customized to display the data that you need. The bottom of the screen contains a trip odom- eter that will record the distance travelled since the last time the odometer was reset.

  • Page 55: Satellite Status Screen

    Satellite Status Screen Although the Satellite Status screen is part of the navigation screen sequence, it is not actually a navigation screen. For more details on this screen, refer to page 10. When MobileMapper Pro is computing your position, an addi- tional information appears in the right-upper corner with two possible values: 3D or 2D.

  • Page 56: Goto Function

    GOTO Function Purpose You use the GOTO function to ask MobileMapper Pro to guide you from your current position to a destination point. After you will have specified which destination point to go to, you will select your favorite navigation screen. You will then be able to read the information computed by MobileMapper Pro to help you reach the destination.

  • Page 57: Selecting A Poi As The Destination Point

    Selecting a POI as the Destination Point Press MENU, scroll to the GOTO option and press ENTER. The possible categories of POIs are now listed on the screen. Se- lect the category the destination point belongs to. Before pressing ENTER to list all the points stored in this cat- egory, choose how you want these points to be listed by setting the Find By field.

  • Page 58: Saving Your Current Position As A Waypoint

    Saving Your Current Position as a Waypoint Saving your current position as a waypoint is very easy and can be done regardless of whether a GIS job is open or not. From any navigation screen, just hold down the LOG button for 2 to 3 seconds until the Mark screen is displayed.

  • Page 59: Editing/Deleting A User Waypoint

    Editing/Deleting a User Waypoint You can edit/delete a waypoint from the Map screen: - Press NAV until the Map screen is displayed - Use the IN or OUT button, or move the cursor so that the waypoint you want to edit or delete is visible on the screen - Position the cursor over that waypoint.

  • Page 60: Routes

    Routes As explained below, MobileMapper Pro can handle two types of routes: GOTO route and multi-leg route. GOTO Route This in fact a route that you define when: - You select a feature on the Map screen, you press ENTER to display the attributes of this feature, and you press ENTER again to enable the Goto function to this feature A GOTO route is a one-...

  • Page 61: Activating/Deactivating A Multi-Leg Route

    The Create Route screen is now displayed. Note that the first line on this screen is highlighted. Press ENTER. The Add WPT screen is now displayed. Select the category of points containing the first waypoint of the route and press ENTER. Choose a point from the list and press ENTER.

  • Page 62: Other Functions Tied To Routes

    3. Other Functions Tied to Routes You can also do the following on the highlighted route using the functions available from the MENU button (see also dia- gram on page 59): - Viewing the route on the Map screen by highlighting the Map View Route option and pressing ENTER.

  • Page 63: Menu Button

    MENU button The list of functions that you can have access to by pressing In the previous chap- the MENU button depends on which navigation screen is dis- ters, we have intro- duced most of the played and whether GIS data logging is in progress or not. The context-sensitive func- context-sensitive functions are always listed first in the menu tions available from the...
  • Page 64 From Position screens Open Job From Map From Map New Job screen, Cursor screen, Position From Compass, From Speed- (Close Job) mode mode Large Data, ometer screen Goto Cursor Road, Data Open Job Coord System Open Job screens Open Job New Job From Satellite Map Datum...
  • Page 65 The second diagram shows the available functions when pressing MENU when a GIS job is open and one of the GIS logging-specific screens is displayed. Line or area feature being logged Grid feature Pause/Resume <feature name> being logged Repeat Feature Point feature being logged Offset Repeat Feature...

  • Page 66: Open Job

    Open Job This option provides another way of opening a GIS job. It is similar to selecting the Open Existing Job option that is prompt- ed on the screen after pressing the LOG button when no job is open yet. Selecting this option when a job is already open al- lows you to close the currently open job and open another one.

  • Page 67: Goto

    If you would like to add more description or if you would like to export a waypoint to your GIS, use a feature library that in- cludes a point feature called “Waypoint” and whatever level of attribution that you need. Then, when you want to record a waypoint, you can select the Waypoint feature type from the feature library and record a fully describable and exportable point feature.

  • Page 68: Initialize

    Save field at the bottom of the screen using the down arrow and then press ENTER. NOTE: The latest release of receiver software makes MobileMapper Pro compatible with background maps made by the separately sold PC application Magellan® Instructions for MapSend® DirectRoute™. You use MapSend Direc- creating DirectRoute tRoute™...

  • Page 69: Nav Screens

    4. Nav Screens This option allows you to remove the navigation screens that you do not need from the navigation screen sequence that you scroll by pressing NAV repeatedly (see page 36). When selecting this option, you are asked to turn off or on each of the available navigation screens.
  • Page 70 - If you select any system other than Lat/Lon or UTM, you are asked to choose a scaling factor for displaying position coordinates: 1 meter, 10 meters or 100 meters. If you choose 1 meter, a northing coordinate will be displayed as, for example, 249143N. If you chose the 10-meter factor, the same coordinate will be displayed as 24914N.

  • Page 71: Map Datum

    6. Map Datum This option allows you to define a primary map datum, and also a secondary map datum if you need one. A map datum is a geographic reference that MobileMap- per Pro will refer to to calculate the coordinates of your position.

  • Page 72: Time Format

    8. Time Format This option allows you to select the time format you want to use in MobileMapper Pro. You can choose from three different time formats: Local 24Hrs, Local AM/PM or UTC. After selecting the Time Format option from the Setup menu, choose the time format that suits you and then Default time format: press ENTER.

  • Page 73: Alarms

    10.Alarms All of the Alarm options are set in the same way. The instructions below apply to all of the Alarm settings. When the beeper is turned on for alarms (see Beeper option) an audible beep will be sounded for the alarm. A visual alert is displayed for the alarm whether the beeper is turned on or off.

  • Page 74: North Reference

    Note: Apart from the Arrival and PDOP alarms, MobileMapper Pro will generate a warning message on the screen in each of the following two cases: - “Low Memory.” This message will appear when the handheld is running out of memory. If a job is being logged, then the occurrence of this message will auto- matically stop GIS data logging.

  • Page 75: Daylight Saving

    12.Daylight Saving This option allows you to select the region where you are located so that MobileMapper Pro can automatically adjust the time displayed to compensate for daylight sav- ing time. You can select one of three possible regions: - United States: Daylight saving starts on the first Sunday Default: The appropri- in April and ends on the last Sunday in October ate daylight saving...

  • Page 76: Contrast

    14.Contrast This option allows you to set the screen contrast. After selecting this option, a new screen appears on which you can set the percentage of contrast using the left/right Default: 50% arrows to respectively decrease or increase that percent- age.

  • Page 77: Clear Memory

    17.Clear Memory This option allows you to clear one of the following data sets from MobileMapper Pro’s memory: - Track history: This feature is disabled in MobileMapper - Wpts/Routes: Will clear all waypoints and routes from memory - Routes: Will clear all routes from memory - Reset default: Will reset the receiver by restoring all fac- tory defaults - All: Will clear all memory...

  • Page 78: Baud Rate

    19.Baud Rate This option enables you to check or set the baud rate of the data being sent out from the MobileMapper Pro’s out- put port. The possible choices are: 1200, 4800, 9600, 19200, 57600 or 115200 baud. The default baud rate is 4800.

  • Page 79: Simulate

    21.Simulate This option allows you to set the simulator. It shows you how MobileMapper Pro uses its various functions based on a sim- ulated journey. The simulator is useful for learning or demon- strating MobileMapper Pro’s GPS functions when indoors and there is no GPS reception.

  • Page 80: Language

    23.Language This option allows you to select the language that MobileMapper Pro will use to display text. TIP: If you accidentally set the language to one you cannot read and want to get back to the Language Select screen, follow these instructions. Press NAV until the Satellite Status screen is displayed and press MENU.

  • Page 81: Card Utilities

    Card Utilities This option allows you to access the following functions: - Save WP/Route: Allows you to save the waypoints and routes you create with the handheld during your field oper- ations. When using this function, you save your waypoints and routes in a separate file of the MMW type.

  • Page 82: About

    About... The About... screen displays the current status of your Mo- bileMapper Pro. Using the About... screen you can see the se- rial number of the receiver, the version of software, the version and memory size of the base map, the number of detailed maps you may have installed and their total memory, and how much free memory is available.

  • Page 83: Using The Sd Card

    Using the SD Card SD Card Location As explained earlier on page 4, the SD card is located in the battery compartment. You need to open the battery compart- ment door and remove the two batteries to have access to the SD card slot.

  • Page 84: Downloading Gis Data Using An Sd Card Reader

    Downloading GIS Data Using an SD Card Reader SD card readers are generally attached to PC computers through USB, a faster communication protocol than the con- ventional RS232 serial line used between the handheld and the PC running MobileMapper Office. If your office computer is equipped with an SD card reader, you can significantly reduce the time required to download your field data to MobileMapper Office by removing the SD...

  • Page 85: Appendices

    2. Appendices Specifications Receiver - 12 parallel-channel technology, tracks up to 12 GPS and Performance WAAS/EGNOS satellites using a multipath-resistant quadrifilar antenna Acquisition times (under optimal conditions): - Warm: approximately 15 seconds - Cold: approximately 1 minute - Update Rate: 1 second continuous Accuracy (while tracking at least 5 SVs, PDOP <...

  • Page 86: Connecting Mobilemapper Pro To An External Power Source

    Connecting MobileMapper Pro to an External Power Source If using the cable that comes with the optional cigarette light- er adapter, simply connect it to the cigarette lighter outlet. If you wish to make a permanent mount to a power supply, cut the cable between the power supply box and the cigarette lighter adapter.

  • Page 87: Naming Conventions For Rover And Reference Files (Post-Processing Option)

    Naming Conventions for Rover and Reference Files (Post-Processing Option) Suppose you have created a new job named “JOB1.MMJ.” You selected the post-processing job mode in MobileMapper Pro so that it records GPS measurement files in addition to JOB1.MMJ. The table below illustrates how these files will ap- pear at various stages of the differential correction process: Rover file seen on receiver JOB1.MMJ...

  • Page 88: Defining A User Map Datum

    Defining a User Map Datum Whether you are in the office using MobileMapper Office, or The latest release of in the field working with your receiver, the system lets you cre- receiver software allows you to define the full ate the user map datum you need. set of 9 parameters However you will not use the same methods in the receiver defining a map datum.

  • Page 89: A And ∆F Of Frequently Used Datums

    Calculation example: Local WGS 84 Datum 6 378 137 6 378 388 298.257 223 563 297 Complete the fields below on the receiver screen using the values of ∆a and 10000x∆f, be- low, left): ∆a Delta A (meters) - 251 m 3.352 810 665 x 10 WGS 84 3.367 003 367 x 10...

  • Page 90: Glossary

    Glossary Attribute: A description item of a feature. Attribute value: One of the possible values that can be as- cribed to a feature. Base Station: See Reference Station. B-File: A binary MobileMapper Pro data file containing GPS measurement data. Carrier phase data: Phase angle measurements for the 1575 MHz radio wave carrying the GPS coded messages.
  • Page 91 To log a feature: Means to save the characteristics of a feature into MobileMapper Pro’s memory. The user is in charge of entering the description of this feature whereas the receiver is responsible for saving the GPS position(s) it has determined on this feature. To describe a feature: Means to give each attribute of the feature one of the prompted values for this feature.
  • Page 92 Post-processing: Differential corrections applied to GPS posi- tions in a PC - after both rover and reference data are logged and downloaded. Post-processing is slower but more accurate than real-time differential correction. RTCM: Radio Technical Commission for Maritime Services. Commonly refers to a format of real-time DGPS format. Reference Station: A stationary GPS receiver logging, or broadcasting, data from a known point.

  • Page 93: Index

    Index Rows, grid feature 26 Accuracy 27 SD Card 4 Alarm, Arrival 65 SD Card Utilities 73 Alarm, PDOP 65 Simulator 71 Alphabetical 49 Spacing, grid feature 26 Backlight, timer 68 Target on Map screen 30 Baud rate, serial port 70 Testing SD Card 73 Bearing, offset 20 Track Mode 39...
  • Page 94 Magellan follows a policy of continuous product improvement; specifications and descriptions are thus subject to change without notice. Please contact Magellan for the latest product information. ©2004-2007 Magellan Navigation, Inc. All rights reserved. MobileMapper is a trademark of Magellan Navigation, Inc. All other product and brand names are trademarks of their respective holders. P/N 631132-01D...

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