You can select an entry from the Utilization table to show only the networks using the selected channel as a primary channel. To include overlapping networks, select Include overlapping networks in selection.
When you select an entry from the Utilization table, the beacon overhead rating for the selected channel is shown at the inspector’s bottom. Beacon overhead ratings are listed below:
Inspectors
The Utilization inspector
Channel utilization statistics in WiFi Explorer Pro 3.
The 
Utilization inspector shows several utilization statistics for each occupied channel in the 2.4 GHz, 5 GHz, or 6 GHz bands.
The following table lists the columns available in the Utilization inspector and their support in active and passive scan modes: