This antenna operates in the 5 ghz frequency band and is designed for use with cisco aironet access points and bridges but can be used with any 5 ghz cisco aironet radio device that uses rp tnc connectors the antenna has an articulated base that can be rotated 360 degrees at the connection point and from 0 to 90 degrees at its knuckle with detents at 45 and 90 degrees