A heatmap is a view of evidence, not proof that every colored location was measured.
Begin with the legend and scope
Before interpreting a color, identify the metric, scale and selected network. A green area in one tool or report may not use the same thresholds as another. Check the units and whether the view includes all observations or a particular BSSID and band.
Also confirm the floor and survey. A beautifully rendered map of the wrong visit is still the wrong evidence. If the floor layout changed, make sure the image and measurements can be meaningfully compared.
Find the actual measurement points
Locate where readings were captured. Dense color does not imply a dense set of measurements. Some visualization techniques estimate or blend the area between points, so an unsampled room may appear influenced by observations collected elsewhere.
Inspect a point in the area you intend to discuss. If no point exists there, describe the gap and collect a reading before making a strong location-specific claim. A blank or uncertain area is often a useful instruction for the next visit.
Look for a repeatable pattern
A cluster of weaker points deserves more attention than one isolated outlier, but it still needs context. Compare nearby positions, the chosen radio and the conditions of the visit. Avoid declaring a wall, cabinet or AP setting responsible solely because it appears near a color transition.
Use the floor geometry to make the next measurement more deliberate. A point on either side of a doorway or at the actual user’s desk can be more informative than another point in an already well-sampled corridor.
Turn the map into a readable explanation
A good report states what was measured, where it was measured and what remains uncertain. Keep the legend and relevant filters visible or document them alongside the export. Explain why the highlighted area matters to the person receiving the report.
Wi-Fi Master Planner lets you review signal observations in their floor context. Use the underlying values and the map together. A visual summary helps communicate a pattern; the captured points support the claim.
Take it into the field
- Read the metric, units and legend first.
- Confirm floor, visit, BSSID and band.
- Distinguish captured points from unsampled areas.
- Collect missing evidence before making a location-specific claim.
Put your next survey on the map.
Prepare a floor on the web, capture deliberate points on Android and review the observations in one place.
Create free account Explore the workflow