Features NO NEED FOR INSTALLATION: Made of good quality ceramic material, sturdy and durable, easy to use without installation, very convenient RG1.13 WIRE WITH STABLE TRANSMISSION: RG1.13 wire is soft and firm, high density woven shielding layer bring fast and stable transmission of oxygen free wire core FAST POSITIONING: High gain 28DBI, support GPS positioning system. The system can quickly search for satellites and accurately locate even in complex city environments ACCURATE SIGNAL: The antenna is designed with a two stage amplification and filter circuit, with low noise figure, faster sending and receiving, and more accurate and stable signal WIDE RANGE OF APPLICATIONS: Car 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individual DVD navigation, car maintenance and other equipment can be applied Specification:Item Type: GPS Ceramic Antenna Model: GPS-TC-003 Material: Ceramic Purpose: GPS signal reception and transmission GPS Frequency: L1 1575.042MHZ±1.023MHZ BD Frequency: B1 1561.098MHZ±2.046MHZ Antenna Gain: 28DBi Impedance: 50Ω Working Temperature: -40℃~+85℃ Interface Model: IPEX head Line Type: RG1.13 line Standing Wave Ratio: ≤1.5 Polarization Method: Vertical polarization Application Areas: Car 4S shops, car dealers, bus stop announcers, driving samples, rental companies and individual DVD navigation, car maintenance and other equipment Package List:2 x Antenna Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 2 x Antenna