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

Creating Vendor-Specific AP Presets

As described in the previous chapter, TamoGraph allows for full customization of all virtual AP parameters. This functionality makes it possible to create virtual AP presets that match actual hardware from major AP vendors, such as Cisco, Aruba, etc.

Before we explain this procedure, we would like to answer one of the most frequently asked questions:

Why do you not add vendor-specific AP presets yourselves?

Indeed, TamoGraph includes only a few generic AP presets, because real-world, hardware APs have many configurable parameters and only you know how your AP is configured. The simplest example is an 802.11ac AP by vendor XYZ that supports 80, 40, and 20 MHz channels in the 5 GHz band. What channel width should we use to add that specific AP to the list of our presets? If we select 80 MHz channel width and you configured your real-world AP to use 20 MHz, your virtual model will be incorrect. Adding three different presets is also a bad idea because channel width is not the only configurable parameter. There are others, such as AP transmit power, channel number, etc. Therefore, you, the WLAN administrator, should create unique AP presets in accordance with your unique AP configurations. This is very easy. All AP presets consist of two parts:

1.AP configuration parameters (power, channel, installation height and angles, etc.)

2.Antenna preset.

This can be expressed by a simple formula:

AP Preset = AP Parameters + Antenna Preset

Yet another reason we do not add vendor-specific AP presets is that many outdoor AP models do not have integrated antennas. Instead, the user can select from a number of external antennas, which means that the same AP model may have multiple antenna options and, therefore, multiple presets.

To illustrate the process, let us assume that we want to create an AP preset for a new WLAN for which we will use Aruba AP-325 access points. First, click on the Virtual APs tool on the toolbar and select Manage / Create New Presets:

ap list

This opens the Preset Manager where you can modify all the AP parameters and change the antenna type. The screenshot below illustrates a few changes we made to the default values for the 5 GHz radio to ensure that the virtual AP matches the real-world Aruba AP-325 APs that we will deploy:

preset manager

The following changes have been made:

  • The preset name was changed to “My Aruba AP-325”.
  • The channel width was set to 40 MHz. Although Aruba AP-325 APs support up to 80 MHz, let us suppose we will limit the channel width to 40 MHz.
  • Let us imagine that this is a dense deployment, so the transmit power was reduced to 12 dBm.
  • AP-325 APs are 4x4 MIMO devices, so the default number of spatial streams was changed to four.

Finally, we need to click Select… to change the generic antenna to one that matches the AP. As mentioned above, we can choose from a variety of antenna models by major Wi-Fi equipment vendors or one of the generic antenna types. In this case, we will select the Aruba AP-320 series antenna:

antenna selection

If you cannot find a matching antenna, please refer to Antenna Selection, which lists a few options available to users.

You may want to click Advanced… to examine 3D views of the selected antenna diagram and to adjust the antenna orientation either by rotating the diagram views or entering numeric values.

Finally, clicking OK confirms the antenna selection. The same adjustments and antenna selection should be performed for the 2.4 GHz radio.

Clicking Save saves the new preset. The preset is now available alongside the generic presets in the drop-down list. Managing AP presets is similar to managing walls or attenuation zone presets. You can select an existing AP preset, modify it, and click Save to save it under the same name. To save it under a different name, change the preset name before clicking Save. You can also click New to create a new preset from scratch. To delete an existing preset, click Delete.