For more information please visit https://www.cisco.com/c/en/us/td/docs/wireless/antenna/installation/guide/5135dw.pdf Cisco Original Technical Specifications Antenna type Dipole Operating frequency range 5150 ? 5850 MHz Nominal input impedance 50 Ohms 2:1 VSWR bandwidth 5150 ? 5850 MHz Gain 3.5 dBi Polarization Linear, vertical E-plane 3-dB beamwidth 40 degrees H-plane 3-dB beamwidth Omnidirectional Connector type RP-TNC plug Length 5.3 in. (13.4 cm) Radome length 3.4 in. (8.6 cm) Width 0.62 in. (1.5 cm) Operating temperature ?22F ? 158F (?30C ? 70C) Storage temperature ?40F ? 185F (?40C ? 85C) Environment Indoor, office System Requirements This antenna 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. Features 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. The articulated base is shown in the following illustration.