FlyFishRC Osprey 5.8GHz 150mm RHCP Antenna | FPV VTX Antenna SMA | The FPV Project

The FlyFishRC Osprey is a compact, high-efficiency 5.8GHz RHCP analog FPV antenna engineered for superior signal clarity and range. With a unique 4-leaf hybrid network construction, hermetically sealed polycarbonate casing, and an extraordinary 99% radiation efficiency, the Osprey punches well above its size — delivering near-perfect circular polarisation and consistent signal strength across the full 5.6-6GHz FPV band.

Why choose the FlyFishRC Osprey?

Most 5.8GHz FPV antennas compromise on either size, efficiency, or build quality. The Osprey was engineered to sacrifice none of the three. At just 14.1mm in diameter and 11.29g, it’s smaller and lighter than most competing circular-polarised antennas. At the same time, its 99% radiation efficiency and VSWR of ≤1.2:1 put it among the most efficient antennas available at any price point. Pair it with components from our FPV VTX collection for a complete video system.

Key features

99% radiation efficiency

99% radiation efficiency means virtually all of your VTX’s transmitted power reaches the air as usable signal — with almost no energy wasted as heat or reflected back. This is one of the highest efficiency ratings available in an FPV antenna and translates directly to stronger, more reliable video links.

Ultra-low VSWR ≤1.2:1

A VSWR of ≤1.2:1 is exceptionally low — indicating near-perfect impedance matching between the antenna and your VTX. This minimises signal reflection and ensures maximum power transfer, particularly important at high VTX power levels.

4-leaf hybrid network construction

The Osprey’s unique 4-leaf design produces a near-perfect circular polarisation pattern — better circularity means more consistent signal strength regardless of drone orientation, reducing the video dropouts that occur with less precise antennas.

Hermetically sealed polycarbonate casing

The antenna elements are fully enclosed in impact-resistant polycarbonate and hermetically sealed — protected from moisture, dust, and crash damage. Far more durable than open-element or foam-covered antennas.

Resilient RG141 coaxial cable

The 150mm RG141 cable is stiffer and more resilient than standard RG316 or RG178, maintaining its shape without kinking and resisting damage from repeated flexing during quad installation and crashes.

Specifications

What’s in the box

• 1x FlyFishRC Osprey 5.8GHz 150mm RHCP SMA Antenna

Recommended for

• Analog FPV VTX antenna upgrade on 5-inch and 7-inch builds
• Goggle receiver antenna replacement
• Long-range analog FPV builds requiring maximum signal efficiency
• High-power VTX setups where low VSWR protects the transmitter

Build compatibility

Gold-plated SMA connector — compatible with the majority of analog FPV VTX units and goggle receivers using standard SMA ports. If your VTX uses MMCX, you will need a separate MMCX-to-SMA adapter. Browse our full VTX range for compatible transmitters.