ImmersionRC Fatshark SpiroNET 5.8GHz 13dBi CP Patch Antenna SMA Brand Name: ImmersionRC . Item Name: 5.8GHz 13dBi Gain Antenna . Connector: SMA compatible with all FatShark/ImmersionRC 5.8GHz products . Polarization: Right-hand circular 5.8GHz ISM Band . Gain: 13dBi . Beam width: 35 degrees (H + V) . F/B ratio: 26dB, VSWR is &lt; 1.5:1 (5740 - 5860MHz). . Impedance: 50 ohms. . Size: 92x92mm . Features: The new CP Patch antenna is lightweight, Headset-mountable, and has unbelievable range. . It pushes the limits of range on 5.8Ghz, with 13dBi gain multi-km flights are possible even on CE-legal 25mW systems. . For 600mW systems, the video range can greatly exceed the control range of most 2.4GHz radios. . Its Light enough to be mounted directly onto an LCD headset, or directly onto the front of one of our Uno, or Duo receivers. . If your starting to feel limitations of you 5.8Ghz system this CP Patch antenna can breath new life into your FPV gear. . Package Included: 1 x 5.8GHz 13dBi Gain Antenna