Cisco Aironet Dual-Band Dipole Antenna (AIR-ANT2524DB-R) Application: indoor Frequency range: 2.4 GHz, 5 GHz Gain: 2 dBi, 4 dBi Using dual-band antenna port allows the access point to support these added transceivers while maintaining a reasonably low number of antenna connections. For Aironet 3602E Dual-Band Dipole Antenna