Wi-Fi Site Survey
Also known as: Site Survey · Wireless Survey · RF Survey
A Wi-Fi site survey is an on-site measurement of how signal strength and interference actually behave throughout a building's rooms.
A site survey measures, inside the actual building, how far an access point's signal really reaches and where walls, shelving, or machinery weaken it. The goal is a Wi-Fi plan based on real measurements instead of a guess made from a floor plan.
In practice, a technician walks the building with a laptop or measurement tool, recording signal strength (in dBm) at many points and plotting it into a heatmap that shows exactly where coverage gaps appear. That heatmap then determines how many access points are needed and precisely where to mount them.
A common mistake is planning purely from a floor plan: concrete, steel shelving, cold storage rooms, or even thick masonry attenuate signal very differently, and paper alone can't predict that reliably. Adding access points after the fact is usually far more work than measuring before installation.
What it means in practice
If warehouse scanners keep dropping connection or certain corners of a hall have no Wi-Fi at all, a site survey is usually the right first step — before ordering any new hardware. NDVDL carries out this on-site measurement before access points are planned or mounted.
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We look at how it actually stands with you — and say honestly whether anything needs doing.
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