Abstract: The present invention relates to wireless networks and more specifically to systems and methods for selecting available channels free of radar signals from a plurality of radio frequency channels. One embodiment includes a cloud DFS super master, a plurality of radar detectors, and one or more client devices. The cloud DFS super master is programmed to receive the results of a scan for a radar signal from each of the plurality of radar detectors, geo-location information for the plurality of radar detectors, geo-location information for the client devices and a request for available radio channels from the client devices. The cloud DFS super master is programmed to determine one or more radio channels that are free of radar signals within a distance of the client device.