Hi  In a hope that this forum is not dead.... A customer to us is seeing a lot of radar detection messages on different frequencies on 5GHz band in their log. Jan 19 08:45:26 2011: %CC-4-RADIORADARDETECT: 802.11a radio on AP 00-23-68-85-EC-78 found radar on channel 136 Jan 19 08:45:26 2011: %CC-6-DFSMOVECHANNEL: Radio 10 move to channel 64 - 5320 MHz This messages is seeing by 9 of 10 AP650... the RFS6000 is running on the latest WiNG 4.x. There is no airport nearby and some AP's is very "deep inside" the building no windows nearby and it is a office environment. Does anyone know what can cause this? Can it be other electronic equipmen such as larm detectors, consumer electronics etc? regards