Features 1、Stable Signal: Comes with 28dbi high gain, the GPS antenna has broader coverage and longer distance for stable signal. 2、Reliable Uses: Independent transmission channel has high efficiency and little co channel interference, very reliable. 3、Wider Utility: Allows for wide application on various equipments, GPS navigation, vehicle, automotive maintenance, etc. 4、Good Material: Adopting high quality ABS material and RG174 copper core, has small attenuation and waterproof for use. 5、Better Design: SMA head enables easy connection, while the compact size largely simplifies carrying and installation. Specification Item Type: Antenna Model: GPS-005 Material: ABS + Copper Function: For GPS transmission and gain. Working Frequency: 1575.42MHz Antenna Gain: 28DBI Standing Wave Ratio: ≤1.5 Impedance: 50Ω Waterproof Grade: IP67 Line Type: RG174 Polarization Method: Vertical Polarization Interface: SMA Head Application: For car 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individual DVD navigation, car maintenance and other equipment. Package List 1 x Antenna