This a very affordable antenna that will enhance your FPV experience.
Specs: Frequency: 5705~5945MHz Connector: RP-SMA Polarization: Right-hand circular 5.8Ghz ISM Band Gain: 6dBi Beam Width: 35 degrees (H + V) F/B Ratio: 12dBi, VSWR is <1.5:1 Impedance: 50ohms Dimensions: 45x45mm with 75mm stem Weight: 13g