Cisco AIR-ANT2450V-N=, Omni-directional, Frequency 2.40 GHz to 2.48 GHz, Antenna Gain 5 dBi, Wireless Data Network, Impedance 50 Ohm. Cisco 2.4 GHZ 5.0 Dbi Omni Ant. With N Con (Air-ANT2450V-N= )Aironet Omnidirectional Antenna operates in the 2.4-GHz frequency range and is designed for outdoor use with the Cisco Aironet 1520 Series Outdoor Mesh Access Point.