These visualizations (there are two separate visualizations for the
2.4 GHz and 5 GHz bands) show per-channel coverage for the selected
band. The predominant channel is determined by the AP that has the
strongest signal in the given area. Each channel is marked with the
corresponding legend color.
These visualizations are intended to assist the surveyor in
detecting problems with channel reuse patterns in existing
high-density WLANs that do not use dynamic frequency selection.
They are also instrumental in predictive surveys, when you design
new Wi-Fi deployments.