Wireless Site Surveys are conducted using devices and software that collect and analyses WLAN metrics and RF spectrum properties. Valid range is set defining the area in which wireless connectivity is required. During the survey, a surveyor walks the facility with a portable computer that continuously records data. Each location surveyed is marked manually or through GPS, and these statistics are collected: Signal Strength run. Noise (electrical, not audio) Signal to Noise Ratio (SNR) – (This determines the minimum signal needed for given applications to run effectively) Bandwidth After these parameters are collected, they are analyzed with specialized software. Types of Wireless Site Surveys: There are three types of site survey in which a specialist performs: Passive:. In this type of survey, WLAN traffic is monitored to detect possible access points and measure the signal strength and noise level. Active: During the active survey wireless adapters are associated with multiple access points. The active survey checks the performance post-deployment the wireless network. If any error is found for data transfer, then it can be fixed. Predictive: In this type of survey, the RF modeling is created using mockup tools. Virtual access points are placed on the given area of the network to estimate the expected coverage. Read more @ Freelance Wireless Site Survey Specialist | Role & Salary