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waterproof screw mount 2 in 1 or 3 in 1 GPS GSM WIFI 4G combo antenna Antenna Center Frequency GPS/WIFI/GSM/4G Polarization RHCP/Vetical Gain 3dBic(Zenith) V.S.W.R <1.5 Impendance 50Ω Axial Ratio 3dB...