Feature:1. Reliable Work: Designed to have 3.1dBi high gain and 1614Mhz centre frequency, the patch antenna enables stable signal.2. Efficient Use: Comes with 81Mhz bandwidth, the passive antenna board with 50 ohms impedance enables high work efficiency.3. Broad Utility: Allows for flexible application in signal transmission and reception as well as software defined radio.4. Wide Matching: Having been paired with premium LNA, the antenna module ensure wider coverage, very practical and reliable.5. Easy to Install: Light in weight and compact in size, the installation is very convenient and can be finished in minutes.Specification:Item Type: Patch AntennaModel: XR-171Material: PCBCentre Frequency: 1614MhzBandwidth: 81MhzSMD Gain: 3.1dBiImpedance: 50 ohmsPCB Board Size: Approx. 80 x 82mm / 3.15 x 3.23inConnector: SMA female head. Package List:1 xPatch Antenna