1,Frequency:824~894/1710~1990MHZ, 880~960/1710~1990MHZ, 1920~2170MHZ 2,Gain:2dBi 3,Certification:ROSH, CE, ISO9001:2000 3.Electrical Characteristics 3.1 GSM Antenna Form 1No.ItemSpecifications1Frequency(MHz)824~894 MHz/1710~1990 MHz880~960 MHz/1710~1990 MHz1920~2170 MHz2V.S.W.R(in BW )2.0:13Gain(Zenith)2 dBi4PolarizationVertical5Impedance50 Ω 3.2 MechanicalForm 2No.ItemSpecification1Cable— ...