This is an old revision of the document!
Wireless Survey as the name suggests will run a scan of the neighbour SSID from the AP stand point, reporting on: name, strength, channel, etc. It provides a crucial piece of info when deciding on what channel to run the own Access Point radio signal.
NOTE: despite this being fully functional you might find more direct and visually pleasant to use instead a WiFi scanner directly on e.g. your mobile device.