Features Stable Signal: Comes with 28dbi high gain, the GPS BD 2 in 1 antenna has wide coverage and long distance for stable signal. Good Material: Adopting high quality ABS material and RG174 copper core, has small attenuation and waterproof for outdoor. Better Design: SMA male head enables easy connection, while the compact size largely simplifies carrying and installation. Reliable Uses: Independent transmission channel has high work efficiency and little co channel interference, very reliable. Wider Utility: Allows for application in GPS navigation module, advertising machine, vending machine, car navigation, etc. Specification: Item Type: Antenna Model: GPS-JG-003 Material: ABS + Copper Application: For GPS, network signal transmission and gain. Working Frequency: L1 1575.042MHz ± 1.023MHz. Gain: 28DBI Voltage: 3V~5V Standing Wave Ratio: ≤1.5 Impedance: 50Ω Maximum Power: 50W Antenna Interface: SMA Male Head Waterproof Grade: IP67 Storage Temperature: -20~40℃ Polarization Method: Vertical Polarization Applicable Equipment: For GPS navigation module, such as number picker, advertising machine, vending machine, car navigation, bus stop announcer, etc.  Package List:1 x Antenna Package List 1 x Antenna