Site Survey Tool - TamoGraph

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System Requirements
Differences between the Windows and macOS Versions
Driver Installation - Microsoft Windows
Wi-Fi Capture Engine Installation - macOS
Licensing and Trial Version Limitations
Interface Overview
Access Point List
Floor Plan / Site Map
Plans and Surveys, Properties, and Options Panel
Main Menu
Spectrum and Networks Panel
Performing a Site Survey
New Project Wizard
Adapter Signal Level Correction
Data Collection
Understanding Survey Types: Passive, Active, and Predictive
Active Survey Configuration
Best Practices, Tips, and Tricks
Survey Job Splitting
RF Predictive Modeling
Drawing Walls and Other Obstructions
Drawing Attenuation Zones
Copying, Pasting, and Deleting Multiple Objects
Undo and Redo
Virtual APs Placement Methods
Manual Placing and Configuring Virtual APs
Antenna Selection
Adjusting Horizontal Antenna Orientation
Creating Vendor-Specific AP Presets
Automatic Placing and Configuring Virtual APs
Reconfiguring Virtual APs
Applying Visualizations
Working with Multi-floor Sites
Mixing Real and Virtual Data
Best Practices, Tips, and Tricks
Analyzing Data – Passive Surveys and Predictive Models
Selecting Data for Analysis
Adjusting AP Locations After Passive Surveys
Splitting an AP into Multiple Unique APs
Working with Multi-SSID APs
AP Rank and Secondary Coverage
Visualization Types
Signal Level
Signal-to-Noise Ratio
AP Coverage Areas
Signal-to-Interference Ratio
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
Tips Panel
Configuring GPS Receiver
Using GPS Configuration Dialog
Finding the GPS Receiver Port Number
Taking Photographs
Voice Control
Using TamoGraph in a Virtual Machine
Command-Line Options and Configuration Settings
Frequently Asked Questions
Sales and Support

Working with Multi-floor Sites

When a WLAN for a multi-floor building is being designed, the virtual model must take into consideration signal “leak” from the adjacent floors. This is important for two reasons. First, it is a common practice to provide connectivity to the adjacent floor by means of the APs that are deployed one floor below or above (usually below, because APs are typically placed on the ceiling, and, therefore, are closer to the floor located above.) Second, if providing connectivity by this method is not planned, it is important to make sure that the signal that penetrates the floors does not cause interference. With TamoGraph, you can create and analyze multi-floor models as explained below.

Creating a Multi-floor Project

To create a multi-floor project, you should first follow the same steps that you follow to create a standard project; you must add a floor plan to the project and calibrate it. You can begin with the first floor. Once a standard project with a single floor plan has been created, you can use the Plans and Surveys tab on the right panel to manage floors and define their characteristics. Floors define the building’s vertical structure.  Floor maps within each floor contain images of the floor plans.

Сlick Add => Floor again to create a new floor level. If the floor plans are identical for all the floors in your model, you can duplicate floors after drawing walls and other obstructions on the first floor plan and placing alignment points; this is described in detail below. If the floors are not identical, you should add individual floor plans images in one of the supported graphic formats for every floor by selecting the corresponding floor and using the Add => Plan… command. New floor plans must then be calibrated. Note that for each floor, you can add multiple floor plans that might have different scale and orientation.

Once the floors have been created and the corresponding floor plans have been added and calibrated, you should specify floor heights and a few other characteristics. New floors are added with default floor materials and heights; to specify correct values for your building, right-click on any of the floor items and select Properties or click on the Floor Manager button. You can also use this dialog to rearrange floors.

Use the Add Roof button to add a roof on top of all floors. You can specify the material reflection and attenuation of the roof in the Floor/ Ceiling Properties window accessible via the Modify… button. Once you have defined the floor and roof properties, address floor plan alignment as explained below.


Aligning Floors

When you work with a multi-floor site model, TamoGraph can analyze Wi-Fi signals that come from the adjacent floors. To be able to take advantage of this functionality, you need to perform floor alignment. Floor plan alignment is necessary because floor plans might have different scale, orientation, or offset. While floor alignment is not mandatory, TamoGraph will use only the data from the current floor unless you perform floor alignment. To perform it, please do the following:

  • Right-click on the first floor plan and select Align Floor Plan.
  • Choose a few locations on the floor plan that will be easily identifiable on the plans of other floors. This could be elevator shaft corners, building corners, staircase corners, or anything else that you can easily find on all the floor plans that you use in the project.
  • Click Add point to place a new marker on the floor plan, and then move the marker to one of these locations. Create at least two markers. Each marker is assigned a unique number. If you made a mistake, click Delete point or Clear all.
  • Once you have placed two or more alignment markers, click Apply.
  • Repeat this operation for all the floor plans that you would like to have aligned. The markers must be positioned exactly below or above the corresponding markers on the adjacent floor. For example, if marker #2 on the 5th floor is placed in the bottom right corner of the building, marker #2 must be also placed in the bottom right corner of the building on the floor plan of the 6th floor.

To check the current floor alignment status, select Properties or click on the Floor Manager button. The floors that are properly aligned are marked with a green checkbox. The floors that have not been aligned yet are marked with a yellow exclamation mark. Just like map calibration, floor alignment must be done only once.

Floor Duplication

If the floor plans are identical for some or all the floors in your model, you can simply right-click on the first floor and select Duplicate Floor to create a copy of the first floor with exactly the same floor plan. If the walls and other obstructions, their placement, and materials are identical for all floors, you can calibrate a single floor plan, draw walls, perform floor alignment as described above, and then use the Duplicate Floor command; that way, you will not need to recreate the same virtual floor model for every floor or align the floors, because duplication includes the walls and alignment points. You can select which object types should be copied to the new duplicate. By default, all objects except virtual APs will be copied.

Dealing with Complex Floor Structures

When you use a floor manager to specify the materials that separate floors, you assume that each floor is a contiguous piece of material that covers the entire floor plan area. However, there are cases that are more complex. For example, one can find buildings that have “holes” in the floors that span one or several stories. To deal with such virtual models, you should use the “Floor Area” drawing tool; it is grouped together with attenuation zones and can be found in the corresponding drop-down list on the RF Planner toolbar, next to the “Elevator shaft” or “Filing cabinet” items. Floor areas are drawn just like other attenuation zones, using Rectangle or Polygon mode. As soon as you have drawn the first floor area on a given floor, the application will assume that the floor has a non-standard geometry and only those areas that are covered with “Floor area” contain floor material; areas that are not covered are considered free from any obstructions.

To avoid unnecessary clutter, floor areas are hidden by default. Their visibility can be turned on and off in the View => Virtual Objects => Floor Areas menu. We recommend hiding floor areas once you have completed the design of your virtual model. Additionally, for the sake of clarity, it should be mentioned that when you edit floor areas, you are editing the floor below your feet, not above your head. It should also be mentioned that the floor material and its properties are configured on the Floor Manager, as discussed in the previous chapters.

Analyzing Data

Data analysis for multi-floor sites is similar to data analysis methods for single-floor predictive models; they are described in the Applying Visualizations chapter. However, there are some peculiarities that should be noted. In addition to the signals from the APs located on the floor being analyzed, TamoGraph will also analyze the signals that penetrate from the APs located on the adjacent floors, taking into account their position, height above the floor, and the material of the ceilings. The APs located on the adjacent floors are displayed on the AP list (the left pane of the main TamoGraph window), but the names of such APs are shown using a pale blue font color. This allows you to identify the APs that do not belong to the current floor. Note that you cannot change the properties of such APs or delete them. If you want to change properties of an AP or delete it, first select the floor to which it belongs using the Plans and Surveys tab.