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Site Survey Tool - TamoGraph

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Introduction
Overview
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
Calibration
Configuration
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
Requirements
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
Requirements
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
Properties
Plan / Map
Environment
Client Capabilities
Requirements
Scanner
Options
Colors and Value Ranges
AP Detection and Placement
Visualization Settings
Miscellaneous
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

Visualization Settings

The following settings affect the way TamoGraph displays some of the visualizations:

Area is considered covered if signal strength is at least – This setting defines the AP coverage area based on the minimum signal strength. If the signal strength is below the specified level, the area is considered to be not covered, which means that some data values will not be computed for the area (such areas will appear as white spots). The definition of “strong enough” is rather subjective because certain signal strength might be sufficient for low data rates, but insufficient for the high data rates required for such applications as VoIP. Additionally, 802.11 adapters vary in sensitivity, and some adapters might be able to provide good connectivity in zones where other adapters fail to connect altogether. The default value is -70 dBm. This setting is applicable to the following visualizations: Signal-to-Interference Ratio, AP Coverage Areas, and Number of APs.

Average network utilization – This setting defines how heavy the interference is from the interfering APs. If the interfering signal strength is high, but the network utilization is low, the interfering AP does not create much interference. A typical office WLAN has a network utilization of between 10% and 25%. Adjust this setting to match the actual value for your WLAN. This setting is applicable to the following visualization: Signal-to-Interference Ratio.

AP coverage areas – This setting allows you to change the color coding method used for displaying coverage areas. In No fill, contours only mode, the application draws contours of the coverage areas without filling the areas with colors. In Fill and mix colors mode, the AP coverage areas are filled with colors; when areas overlap, the application draws a striped pattern, alternating the colors of the respective APs. In Fill, strongest AP on top mode, AP coverage areas are filled with colors; when areas overlap, the application draws the color of the strongest AP.  In Fill, weakest AP on top mode, AP coverage areas are filled with colors; when areas overlap, the application draws the color of the weakest AP. This setting is applicable to the following visualization: AP Coverage Areas.

Grayscale obstructions – This setting controls whether virtual objects (used in predictive surveys) are displayed in color or grayscale mode. Available options are Always, When applying visualizations, and Never.

How AP icon locations affect signal – This setting controls the effect that the AP icons have on the calculations of the signal level and other visualizations. The following three options are available:

· Estimated AP locations do not affect signal levels; they are icons only – Suitable for the surveys where signal levels are low and AP locations cannot be estimated accurately. In this mode, the application displays data based ONLY on the actual measurements; there are no extrapolations.
· Estimated AP locations are used to complement measured signals (new algorithm) –Recommended for most surveys. It uses a new, more realistic algorithm for computing signal propagation. This is the default option.
· Estimated AP locations are used to complement measured signals (old algorithm, up to version 4.1) – The old-style algorithm used in versions prior to 4.2. The result is typically overly optimistic.