WiFi e Redes Wireless Empresariais

Wi-Fi site survey: measure before investing in an enterprise wireless network

A site survey measures the real Wi-Fi coverage of a space and tells you how many access points are needed and where. Find out when to request one and what the report contains.

Updated 15 October 20262 min readDataRoad - IT Services and Consulting

At a glance

For decision-makers short on time.

  • 01A Wi-Fi site survey measures real wireless coverage and shows where signal is strong, weak or absent.
  • 02A predictive survey plans access points from the floor plan; an on-site survey diagnoses a live network.
  • 03You receive a heat map, interference analysis and a recommended access point plan.
In this article
Site survey de Wi-Fi: o que é, o que inclui e quando fazer um antes de instalar a rede sem fios — DataRoad

A Wi-Fi site survey is the technical measurement of wireless coverage in a space, carried out before installation or to correct an enterprise wireless network. It shows where the signal is strong, weak or non-existent, what is causing interference and how many access points are needed — and in what position.

What a site survey measures in a business wireless network

Using dedicated tools, the technician walks the space and records the strength and quality of the signal in each zone. The result is a heat map: a floor plan in colours showing the real coverage, without interpretation.

The survey also reveals congested channels and sources of interference.

Predictive survey or on-site survey?

  • Predictive — carried out on the floor plan, before any installation exists. It is used to plan the number and location of access points.
  • On site — real measurements in the field. It is the most rigorous method and the right one for diagnosing an existing network.

The right moments to ask for one

  • New premises Before installing Wi-Fi, to avoid dead zones and surplus equipment.
  • Recurring complaints When coverage or speed always fail in the same places.
  • Move or refurbishment New walls change the way the signal propagates.
  • Growth More people and more devices call for a different density of access points.

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What you receive at the end

  • Heat map The real coverage of the whole area.
  • Dead zones Identified, along with areas of weak performance.
  • Interference Analysis of channels and sources of noise.
  • Access point plan Recommended number, model and position.
  • Report Clear conclusions and next steps to support the decision.

Frequently asked questions

Does a small office justify a site survey?

Yes. It avoids buying too much or too little equipment, and correcting a poorly sized installation costs more than the diagnosis.

Can the survey be used to plan before building work?

Yes. A predictive survey, carried out on the floor plan, shows how many access points are needed and where they go, before any cable or equipment is installed.

What document do I receive?

A report with the heat map, conclusions and practical recommendations, which serves as the basis for the decision and for installing the wireless network.

Next step: measure your Wi-Fi network

DataRoad - IT Services and Consulting carries out coverage surveys and optimisation for managed enterprise networks: Wi-Fi site survey and optimisation. No-obligation proposal for companies with more than 10 workstations · support contract · remote, on-site and telephone support.

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