GS HerTZ Mapper

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    Getting started Feb. 2005 HerTZ Mapper

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    CONTENT 1 Introduction _________________________________________________________________ 3

    1.1 Installing the software ____________________________________________________ 4

    1.2 Starting the software______________________________________________________ 4

    2 Project management __________________________________________________________ 5

    2.1 Cartographic environment_________________________________________________ 5

    2.2 Setting up a transmitter ___________________________________________________ 9

    2.3 Setting up general simulation parameters ___________________________________ 12

    3 Performs radio calculations____________________________________________________ 13

    3.1 Plotting a site coverage ___________________________________________________ 13

    3.2 Plotting a path profile____________________________________________________ 16

    3.3 Plotting Line of Sight ____________________________________________________ 18

    4 Analysis of Coverage _________________________________________________________ 20

    4.1 Composite coverage _____________________________________________________ 21

    4.2 Best server coverage _____________________________________________________ 22

    4.3 Recoverage_____________________________________________________________ 23

    4.4 Other Analysis__________________________________________________________ 24

    4.5 Population analysis ______________________________________________________ 25

    4.6 Comparison between Measurement data and the HerTZ Mapper simulation______ 30

    5 Printing & Reporting _________________________________________________________ 32

    5.1 Printing the entire map __________________________________________________ 32

    5.2 Printing a specific area ___________________________________________________ 33

    6 Review of Menus & Functions _________________________________________________ 34

    6.1 File Menu ______________________________________________________________ 34

    6.2 Parameters Menu _______________________________________________________ 34

    6.3 Network Menu__________________________________________________________ 35

    6.4 Utilities Menu __________________________________________________________ 35

    6.5 View Menu_____________________________________________________________ 35

    6.6 Popup menu (after a click on the map)______________________________________ 36

    6.7 FLD Menus ____________________________________________________________ 36

    6.8 Measurement menu _____________________________________________________ 37

    6.9 Customer Care Menu ____________________________________________________ 37

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    1 Introduction

    This document acts as a started guide to HerTZ Mapper, the radiocommunication network planning tool for

    V/U/SHF that is flexible enough to be used either in the office using desktop computers, or out in the field

    using a portable PC. HerTZ Mapper uses specially adapted geographic information including a Digital Terrain

    Model (DTM) and digitised map images, in order to facilitate the following tasks:

    Network Installation

    Equipment Dimensioning

    Terrain profiles

    Line of sight calculation

    Site searching

    Coverage calculations

    GPS interface capabilities

    Marketing applications

    Customer care

    Should additional information on specific areas be required please contact our Sales team at sales@atdi.com

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    1.1 Installing the software

    To load the software you must be using a Windows based personal Computer, i.e. Windows 95 or higher. The

    software needs then be installed :

    The free trial version, limited in its functionalities

    The commercial release of HerTZ Mapper

    In the next pages, the functions that are not available in the free version will be highlighted in grey.

    1.2 Starting the software

    From the Windows start menu navigate to the ATDI software selection within programs.

    Click on HerTZ Mapper image/icon. :

    In case the free trial is used, HerTZ Mapper will indicate the free mode option in the title bar :

    Once the package has opened click on the middle of the screen.

    Main screen of HerTZ Mapper Web (this screen might be different for the commercial release of HerTZ Mapper)

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    2 Project management

    2.1 Cartographic environment To load a project, use the Files menu in the top left and select Create new file server.

    File server menu (left : commercial release, right : Web trial release)

    The user has then to specify a name for the project he is about to create.

    svr file creation (left : commercial release, right : Web trial release)

    Once done, click on Save.

    Each cartographic files are then defined by double-clicking on the corresponding layer :

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    In order to go further, several files are mandatory :

    Mode GEO file IMG file SOL file

    Coverage & profile Mandatory Mandatory Not mandatory but improves the

    accuracy of the simulation

    Customer care

    NOT availab e in Free Mode lNot used Mandatory Not used

    Measurement

    NOT availab e in Free Mode lNot used Mandatory Not used

    Once the cartographic files have been defined, click on OK.

    The rest of the document will focus on the Coverage and profile mode.

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    This shows 2 map layers an Image on the left and the Digital Terrain Model on the right. These are essential

    features of the tool:

    The Digital Terrain Model (DTM) is crucial to the calculation process; this contains the terrain height

    information for each point on the map area. The number of points is determined by the resolution e.g.

    using a 50m resolution map will result in heights at every 50m so a 1km square would have 200 x 200

    squares & thus 40,000 measurement points. The selection of the appropriate resolution map is

    important in assuring the required confidence in the calculation result, for example if 1km resolution is

    used many terrain features may be missed.

    The image layer does not form a part of the calculation process, but is really essential to visualise the

    area concerned.

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    A Clutter layer can also be utilised with HerTZ Mapper, this is not available in the demo version but can be

    used with the full version. This layer is useful in describing areas on the ground such as building, lakes, trees,

    etc. such that they can be accounted for in the calculations. Below is a sample of the clutter layer:

    Clutter Area with defined height. (Heights can be modified)

    The map data layers described are not supplied as a part of HerTZ Mapper software, but ATDI can supply

    various types for most parts of the world ready to use with HerTZ Mapper.

    Free data can also be downloaded from the ATDI web site www.atdi.com (500m DTM with a 100m map for

    the entire world, 100m DTM with 100m map for the USA).

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    2.2 Setting up a transmitter Clicking anywhere on the image in the image window causes the following floating menu. Move the mouse

    down to Add Site.

    There are then two options either to place the site using the cursor on the map or by entering the co-

    ordinates of the site via the keyboard.

    Selecting the co-ordinates option causes the following prompt box to appear. To position the site the Eastings

    x/long and Northings y/lat must be typed in.

    HerTZ Mapper handles all major coordinates systems and projection types :

    Mainly used ellipsoids (WGS84, GRS80, NAD83)

    Main coordinate units (Decimal degrees, Degrees Minutes and Seconds, Arc seconds, MGRS (Military

    aspect) Meters)

    Main projections : UTM North and South, Geographic, Lambert

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    Once the position of the site is defined the other site parameters may be defined, including the transmit

    frequency, antenna height, transmitter ERP and antenna pattern. This is available in the Station Parameters

    Box that pops up once the site location is selected.

    Clicking the H Diag. tab bring ups the antenna pattern (in the diagram below a specific pattern has already

    been selected).

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    The antenna H and V patterns can be changed manually or it is possible to load antenna patterns in simple

    text format.

    Once loaded the antenna pattern can be visualised using the 3D tab.

    When the station set up is complete click OK and the site is then marked on the image with an icon of a red

    square and site designator letter. To move, delete or change the parameters of a site click on its icon. Once

    you have clicked on the site you are presented with the following menu.

    Clicking on the transmitter in this case A Site number 1 brings up the following menu :

    Clicking on Move Tx permits new coordinates to be entered. [In the DTM window using this permits you to

    move the Tx using a cursor, use the enter key to accept a new location]

    Clicking on Profile allows you to show a path profile and link budget (Link budget not available in Free

    mode) from the site to any selected point on the map.

    Clicking on Line of Sight shows areas on the mapping that you will have line of sight with from that

    transmitter.

    Clicking on Coverage start