Item Type: Omnidirectional Antenna_x000D_Model: JB-GSM-020_x000D_Material: ABS_x000D_Purpose: Signal transmission and gain_x000D_Working Frequency: 824-960 1710-2170mhz_x000D_Antenna Gain: 3DBI_x000D_Impedance: 50_x000D_Maximum Power: 50W_x000D_Standing Wave Ratio: 1.5_x000D_Polarization Method: Vertical polarization_x000D_Antenna Connector: SMA male_x000D_Application Field: Can be used for GSM, 2G, 3G, wireless modules, for NB-IOT modules, for DTU modules, advertising machines, numbering machines, vending machines, GPRS signal reception or transmission, etc. 1WATERPROOF AND DURABLE: Adopt good quality materials, non toxic and harmless, durable with strong signal, waterproof and sun proof 2PORTABLE AND HIGH GAIN: Small size is easy to carry and install, completely free from space constraints. High signal durable antenna has high gain, the larger the range, the farther the distance 3WEAR AND CORROSION RESISTANT INTERFACE: The interface is SMA male, wear resistant, corrosion resistant and durable, very practical 4BETTER TRANSMISSION: Independent channel bring faster transmission, reduce co channel interference, strengthen signal gain effect, and improve transmission performance 5WIDE RANGE OF APPLICATIONS: Can be used for GSM, 2G, 3G, wireless modules, for NB-IOT modules, for DTU modules, advertising machines, numbering machines, vending machines, GPRS signal reception or transmission, etc.5 x Omnidirectional Antenna