There are two scanning modes:
Full Scan scans the entire 2.4GHz bandwidth (in 5MHz steps) and 5GHz bandwidth (in 20MHz steps) with a short dwell time (around 50 ms). It supports limited classification of interference sources.
Interference Scan scans three frequencies in the 2.4GHz band and three frequencies in the 5GHz band with a longer dwell time (around 500 ms). It supports classification for all interference sources. To select a mode, select the appropriate radio button or select a mode from the Scan menu.