DarwinFPV Quantum 5.8GHz - 65mm RHCP u.FL Y-Type

DarwinFPV Quantum is a short omnidirectional antenna with RHCP polarization, a u.FL connector, and a wide 5-6.2GHz band. With a weight of 2.7g and a height of 65mm, it is suitable for the transmitting side of smaller drones and cinewhoops, where every gram counts. Thanks to the u.FL connector, the antenna plugs directly into the video transmitter, saving both weight and space.

Unlike standard u.FL antennas with a loose cable, this version features a Y-mount — a rigid split “leg” with two rings used to attach the antenna to the drone frame. The antenna head stays securely in place, while a thin coaxial cable terminated with a u.FL connector runs through the center of the mount. RHCP polarization is suitable for analog video transmission or HDZero.

The radiating element is made of gold-plated PCB, ensuring consistent characteristics between individual units and resistance to oxidation. The 5-6.2GHz band covers all common FPV channels, and the manufacturer states a maximum measured radiation efficiency of 60.18%. The axial ratio indicates how accurately the transmitted wave is circular; a value close to 1 means lower losses between the transmitter and receiver and better suppression of reflections from terrain and obstacles. The radiating element is protected by a transparent cover made of durable PC+ABS plastic with a diameter of 15mm, designed to withstand hard crashes.