PowerBridge XM devices don't seem to behave very well with Elevate - are they even Elevate-able? I can't get the radio to switch on or report any available channels.
We have a few customers hanging off PBXMs who i'd like to avoid having to upgrade to a Force 200 if possible...
PowerBridge's aren't on the supported list... furthermore, Ubiquiti never went through the process of getting them FCC approved for UNI-1 or DFS channels, so even if you were able to get the elevate firmware working... only the 5.7-5.8 channels would be available.