The antenna operates in both the 24 ghz and 5 ghz frequency bands and is designed for use with cisco aironet 24 ghz and 5 ghz radio products that have dual band reverse polarity tnc rp tnc antenna ports the antenna has a nominal gain of 2 dbi in the 24 ghz frequency band and 4 dbi in the 5 ghz frequency band the three antennas covered in this document are electrically the same parameter nb