Site Survey Tool - TamoGraph

Prev Page Next Page
System Requirements
Driver Installation
Licensing and Trial Version Limitations
Interface Overview
Access Point List
Floor Plan / Site Map
Plans and Surveys, Properties, and Options Panel
Main Menu
Performing a Site Survey
New Project Wizard
Data Collection
Understanding Survey Types: Passive, Active, and Predictive
Active Survey Configuration
Best Practices, Tips, and Tricks
Survey Job Splitting
Predictive Surveys
Drawing Walls and Other Obstructions
Drawing Attenuation Zones
Virtual APs Placement Methods
Manual Placing and Configuring Virtual APs
Automatic Placing and Configuring Virtual APs
Reconfiguring Virtual APs
Working with Presets
Applying Visualizations
Working with Multi-floor Sites
Mixing Real and Virtual Data
Best Practices, Tips, and Tricks
Analyzing Data – Passive and Predictive Surveys
Selecting Data for Analysis
Adjusting AP Locations After Passive Surveys
Splitting an AP into Multiple Unique APs
Working with Multi-SSID APs
Visualization Types
Signal Level
Signal-to-Noise Ratio
Signal-to-Interference Ratio
AP Coverage Areas
Number of APs
Expected PHY Rate
Frame Format
Channel Bandwidth
Channel Map
Analyzing Data – Active Surveys
Selecting Data for Analysis
Visualization Types
Actual PHY Rate
TCP Upstream and Downstream Rate
UDP Upstream and Downstream Rate
UDP Upstream and Downstream Loss
Round-trip Time
Associated AP
Spectrum Analysis
Hardware Requirements
Spectrum Data Graphs
Performing Spectrum Analysis Surveys
Viewing Collected Spectrum Data
Exporting Spectrum Data
Reporting and Printing
Customizing Reports
Google Earth Integration
Configuring TamoGraph
Plans and Surveys
Plan / Map
Client Capabilities
Colors and Value Ranges
AP Detection and Placement
Visualization Settings
Configuring GPS Receiver
Using GPS Configuration Dialog
Finding the GPS Receiver Port Number
Taking Photographs
Voice Control
Using TamoGraph in a Virtual Machine
Frequently Asked Questions
Sales and Support

New Project Wizard

To create a new project, click Project => New. A wizard window will appear.

Step 1

Specify the Name, Description (optional), and Project path. The name you give to the project is used as the file name under which your project will be saved in the folder specified in the Project path field.

Step 2

In this step, you should Select an environment. The Environment panel allows you to configure some of the very important project parameters that affect the way data visualizations are computed. Because different environments have different characteristics in terms of signal attenuation, diffraction, reflection, etc., you are asked to select the environment that best describes the site you plan to survey. For each environment, the application recommends a Guess range. A guess range is the diameter of the circle for which the application predicts the WLAN characteristics with a high degree of certainty. For passive surveys, TamoGraph can also compute WLAN characteristics outside the guess range zone, although such computations have a lower degree of accuracy. Check the Extrapolate data beyond the guess range box to enable such computations. Enabling this option means that data visualizations will cover the entire map rather than the areas that you actually surveyed. Enabling this option is not recommended unless you cannot survey some areas of the map for whatever reason. Finally, the Measurement units control can be used to choose the preferred units (feet or meters) for displaying distances and coordinates throughout the application. See the Environment chapter for more information.

Step 3

Select the Channels to scan. The application scanner sweeps through the channels supported by the wireless adapter to collect and analyze packets being sent on the selected channels. You may want to modify the channel selection if you know that some of the channels supported by the wireless adapter are not used in your WLAN or in your country. For example, if your WLAN does not use the 5 GHz band, you may want to turn off all 5 GHz channels; this will shorten the scanning cycle and, therefore, increase the data accuracy. However, please keep in mind that skipping some of the channels may result in the application's inability to detect sources of interference, such as neighboring APs that work on the channels that were skipped. It is recommended that you not modify the default Scan interval and Use the same interval for all channels settings at this stage. See the Scanner chapter for more information. You can use the Select channels button for selecting or deselecting all channels, as well as for selecting channels based on the country- or region-specific allowed channel lists (e.g., choosing United States will select channels 1-11 and deselect channels 12-14 in the 2.4 GHz frequency band).

Note: This wizard step is skipped if your computer is not equipped with a compatible wireless adapter. You might still want to create projects on such computers if you plan to conduct active surveys or use the survey job splitting—i.e., if the data collection process is performed on other computers and the collected data is then merged on your computer.

Step 4

In the final step, you should add an image file that contains the floor plan or site map of the facility or area that you want to survey (you will be able to add more images if your project includes several zones or floors later.) A floor plan or site map is required for accurate data analysis. If no image file is available, you may want to scan a plan, if it exists on paper, create one using a drawing program, such as CorelDraw, or even make a sketch using a ruler and pencil and then scan the sketch (be sure to follow the proportions). The image file should be between 250 and 2,500 pixels on a side (naturally, this applies to raster formats only; vector images, such as DWG, do not have pixel dimensions). Larger images will slow down the application. The following image file formats are supported: BMP, PNG, JPG, GIF, WMF, TIFF, DWG, DXF, and SVG.

If you add an AutoCAD image (DWG or DXF), an additional import settings dialog is displayed. This dialog allows you to select a layout to be used (if the file contains multiple layouts) and include or exclude specific layers. For example, you may want to exclude the plan legend. You can also crop the floor plan to define a specific zone to be used for surveying.

The application also supports PDF files. When you use a PDF file, an additional import settings dialog is displayed. This dialog allows you to select a page to be used (if the file contains multiple pages). Alternatively, you can use any of the images embedded into the PDF file; such images are listed on a separate tab.  You can also rotate or crop the floor plan to define a specific zone to be used for surveying.

If you plan to perform a large-area GPS-assisted survey, you may want to import a map from one of the online map services or Microsoft MapPoint (MapPoint Europe or MapPoint North America are required to use MapPoint maps). Click Load Street Map to open a new map loader dialog. Once the initial map view is loaded (the application will try to guess your location based on the Wi-Fi environment), you can navigate to the area you want to survey, using the map controls or the Navigation frame, in which you can enter your coordinates, or read them from the GPS receiver, or enter your address. Click Go to Location to load the map of the corresponding area. When you are satisfied with the area selection and zoom level, click Use Map. Note that the application will use the map image as you see it, with the selected zoom level and size in pixels as in the map loader window (the window can be resized). Be sure to select the area correctly and to set a zoom level that meets your needs, as you will not be able to resize the map or zoom in/out at a later time.  When you open the map loader window, TamoGraph temporarily returns control over your Wi-Fi adapter to the operating system so that you can connect to the Internet and load the map. If a Wi-Fi connection to your AP is not established, connect your computer to the Internet over a wired connection, close the map loader window, and open it again.