... Antenna(factory) 1,antenna Frequency: 1575.42 2,VSWR: 1.5: 1 3,LNA gain: 25 4.ROSH, CE, ISO9001:2000 Mini GPS Antenna ... (factory)Antenna Electrical specification : Frequency range1575.42MHz Gain3.5 dBiVSWR1.5:1 maxImpedance50ΩPolarizationRHCPConnector(SMA ,TNC) MaleCableRG ...