... /1800,2000,1800/1900,1900/2000MHZ dual/vertical/horizontal/circular 15years' manufacturer Antenna ( Base station antenna )GSM900MHzSingle polarization 90º 17dBiall kinds of Base station ... ,UHF,GPS,etc.Polarization:dual/vertical/horizon/circularMOQ: as requiredPort: ShanghaiDelivery: within 7daysPackage: as requiredPayment: T/T, L/CWarranty:1year Base station panel antenna