Item Type: GPS + BD Antenna_x000D_Model: GPS-TC-005_x000D_Material: Ceramic_x000D_Purpose: GPS Signal Reception and Transmission_x000D_Working Frequency: 1561Mhz 1575.42Mhz_x000D_Antenna Gain: 28DBI_x000D_Impedance: 50_x000D_Working Temperature: -40~+85_x000D_Interface Model: IPEX Head_x000D_Line Type: RG1.13 Line_x000D_Standing Wave Ratio: 1.5_x000D_Polarization Method: Vertical Polarization_x000D_Application Areas: Used for car 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individual DVD navigation, car maintenance and other equipment 1Ceramic Material: Made of high quality ceramic materials, and durable, easy to use, no installation, easy to use 2Fast Transmission: RG1.13 wire is soft and firm, durable, high density braided shielding layer, and oxygen free wire core transmission is fast and stable 3Precise Positioning: High gain 28DBI, support GPS positioning system, even in complex city environments, can quickly search for satellites and precise positioning 4Filter Circuit: Antenna adopts 2 stage amplification and filter circuit design, with low noise coefficient, faster and more accurate and stable signal transmission and reception 5Wide Applications: Used for car 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individual DVD navigation, car maintenance, etc.2 x Dual Band Antenna