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Predictive surveys are performed prior to deployment. In fact, itРІР‚в„ўs a good idea to perform them on a regular basis because the wireless environment, especially in densely populated areas, can change very quickly, with new networks not always being properly configured and causing unnecessary interference as a result.Р”Р„ctive surveys are typically performed right after deployment or when there are issues to troubleshoot, such as when connection attempts are timing out or when youРІР‚в„ўre struggling to achieve the speeds advertised by your internet service provider. Passive surveys can be performed at any time. You just need a reasonably powerful computer and WiFi sire survey app with support for predictive modeling. To perform a predictive survey, you donРІР‚в„ўt actually need to collect any data on site.

Predictive surveys: What is a predictive survey? ItРІР‚в„ўs a simulation done on a computer to mimic the distribution of wireless signals in a virtual version of a real physical environment.

Once youРІР‚в„ўre connected, you can analyze its actual throughput rates, round-trip time, packet loss, and several other metrics while itРІР‚в„ўs in operation.

Active surveys: To perform an active WiFi site survey, you must be connected to a specific WiFi network, which is typically possible only if you know the right password.

Passive surveys can analyze AP coverage areas, signal levels, signal-to-noise ratios, and more. Instead, youРІР‚в„ўre just passively listening to WiFi signals that are bouncing around.

The reason why theyРІР‚в„ўre called passive is that you donРІР‚в„ўt actually need to be actively connected to any specific network.

Passive surveys: Despite the name, passive WiFi surveys actually provide a heap of useful information because they analyze all available WiFi networks in the surveyed location.

There are three main types of wireless site surveys you should know about: WiFi heatmaps are superior to graphs, charts, and tables because they locate data in physical space in an easy-to-read manner.

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WiFi site survey software presents the information it collects in the form of WiFi heatmaps, which are helpful visualization that overlay color-coded data on top of a map of the surveyed area. Once youРІР‚в„ўre equipped with this information, you can much better decide where you should place your router and which channel you should use, among other things. Signal level and signal-to-noise ratio.WiFi channel utilization and interference.The number of WiFi networks present in the surveyed area.

Typically, a WiFi site survey report will tell you the following information: The purpose of this analysis is to support informed decision-making during the networkРІР‚в„ўs deployment and its configuration. You can think of a WiFi site survey as an in-depth analysis of an area where a WiFi network is supposed to be deployed.

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