Cisco Systems AIR-ANT5145V-R Omnidirectional Ceiling Mount Antenna W/RP-TNC Connector
Used came from a school surplus auction. Was pulled from a working system.
Connectors: 2 x RP-TNC
Antenna type : Omnidirectional TM02 Mode Patch
Operating frequency range : 5150 - 5850 MHz
Nominal input impedance : 50W
2:1 VSWR bandwidth : 5000 - 6000 MHz
Gain : 4.5