Site Survey Tool - TamoGraph

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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
Placing and Configuring 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


Welcome to TamoGraph Site Survey, a powerful and user-friendly application for collecting and visualizing Wi-Fi data. Wireless network deployment and maintenance requires the use of a professional RF site survey tool that facilitates otherwise time-consuming and very complex tasks, rates, etc. By using TamoGraph, businesses can dramatically reduce the time and costs involved in deploying and maintaining WLANs and improve network performance and coverage.

Why to Perform a Site Survey

In a word, wireless site surveys are necessary because radio wave propagation is difficult to predict, especially in non-open space environments. Considering all the variables that might affect the health and performance of your WLAN is virtually impossible. Changing conditions, even something as seemingly minor as a notebook equipped with a legacy 802.11g adapter that your new employee connected to the office wireless network, might seriously affect the WLAN performance. In addition, considering the wide proliferation of wireless infrastructure, factors such as interference from nearby WLANs play a very important role. This is why regular site surveys conducted with a professional tool are essential.

When to Perform a Site Survey

Pre-deployment surveys: At this stage, a site survey is necessary in order to verify that the network plan works well in a real-world environment. Placement of temporary access points (APs) and a quick survey of the resulting WLAN characteristics allow an engineer to fine-tune AP and antennae placement, determine the optimal number and types of APs and antennae, and avoid poor coverage zones. Using TamoGraph, you can also perform a simulation in a virtual environment prior to deployment.

Post-deployment surveys: Once a WLAN has been deployed, a complete verification site survey is necessary to ensure that the WLAN performance and coverage meet the design requirements. At this stage, the Wi-Fi equipment placement is finalized, and a site survey report should be generated so that the historical records can be accessed at any time in the future.

Regular, ongoing surveys: Maintaining high performance and coverage requires regular “check-up” surveys.  New users, new equipment, site expansion, neighboring WLANs, and other factors can adversely affect your WLAN. It should be monitored on a regular basis.

Survey Types

There are three types of surveys that you can conduct with TamoGraph: passive, active, and predictive. During a passive survey, the application collects the most comprehensive data on the RF environment:  information on access points and their characteristics, signal strength, noise level, interference, etc. This is the default and most important survey type that we recommend to conduct in every case. It is called passive because during this type of survey, the application passively listens for packets and does not attempt to connect to WLANs. However, to provide more insight into the real-world performance of your WLAN, TamoGraph can also perform active surveys, during which your Wi-Fi adapter connects to the wireless network(s) of your choice to measure actual throughput rates and a few other metrics. Unlike passive and active surveys, predictive surveys are not performed on-site. Predictive surveys are a computer simulation in which Wi-Fi characteristics are predicted for the virtual environment model created by the user. The process of creating and adjusting the virtual environment, selection and placement of simulated APs, and analyzing the resulting WLAN is commonly referred to as “RF planning.” Please refer to the Understanding Survey Types: Passive, Active, and Predictive chapter for more information on this topic. Additionally, TamoGraph can be used to perform spectrum analysis surveys.