GPS+GSM+WiFi combi Antenna: Frequency: 1575.42Mhz; 900/1800Mhz LNA gain: 30dB Certification:ROSH, CE, ISO9001:200 3.Electrical Characteristics3.1 Dielectric AntennaForm 1No.ItemSpecificationsPost Environmental Tolerance1Center Frequency1575.42 MHz±3 MHz2Band Width±5 MHz±1 MHz3V.S.W.R(in BW)1.5:1—4Gain(Zenith)3 dB±0.5 dB5PolarizationRHCP—6Impedance50 Ω—3.2 LNA/FilterForm 2No.ItemSpecificationsPost ...