This is an Ares 5.8GHz Cloverleaf Antenna Set, including a transmitter and receiver antenna. Since the high frequencies used for FPV operation can be significantly affected by the orientation of the standard omni-directional antenna (polarization), the Ares Cloverleaf antenna set provides a circular polarized solution to the transmitting and receiving of an FPV video signal. Used in conjunction with the Ares Patch antenna (AZSZ1031) the Cloverleaf Rx will ensure that your FPV monitor or goggles receive the very best possible reception.