Use Radio Measurement to disable or limit the amount of RF scanning and reporting done. This value is a Cisco Compatible Extensions (CCX) v2 feature. The Cisco AP will send WLSE requests for radio measurements to the computer. The requests can be for either the serving channel (the channel the device is currently connected to) or for the non-serving channel.
Radio Measurement can range from 0 (disabled) to 1000 ms.
300 ms
Communications > 802.11 Radio > Radio Measurement