... 1800,2000,1800/1900,1900/2000MHZ dual/vertical/horizontal/circular 15years' manufacturer AntennaGSM900/1800MHz Dual frequency dual polarization 65 ... 15/16.5 dBiall kinds of Base station/microwave/UHF antennasCertificate:ROHS,ISOFrequency:800,900,800/900,1800, ... tri-sector, array, directional, Yagi,directional,parabolic CDMA,GSM,UHF,GPS,etc.Polarization:dual/vertical/horizon/circularMOQ: as requiredPort: ...