BW&reg; FPV 5.8GHz Circular Polarized Antenna Mushroom Aerial RP-SMA Female Plug Set RX/TX for RC 5.8G Transmitter and Receiver (Rightangle inner hole) 5.8G FPV Omnidirectional Cloverleaf Antenna Greatly increases video and audio signal Runs on 5.8 GHz commonly used for FPV system Circularly polarized for reduced interference Rightangle RP-SMA plug (female plug)