DJI CP.TR.00000014.01 FPV Air Unit SMA Antenna Pair

The DJI CP.TR.00000014.01 is a matched pair of LHCP (Left-Hand Circular Polarization) replacement antennas with RP-SMA connectors, designed for the DJI FPV Air Unit. Circular polarization is a deliberate engineering choice for FPV video transmission: unlike linearly polarized antennas, which are highly sensitive to the relative orientation of transmitter and receiver, circularly polarized antennas maintain consistent signal quality regardless of aircraft roll angle. The LHCP variant reduces multipath interference — the signal degradation caused by the transmitted wave bouncing off reflective surfaces and arriving at the receiver out of phase — which is a particularly common problem when flying tight courses with gates, walls, or dense foliage. The RP-SMA connector provides a secure threaded interface that resists vibration-induced loosening, which is a practical advantage in a sport where hard landings and crashes are routine.

These antennas are the OEM replacement part for the FPV Air Unit, making them the straightforward choice for pilots who have damaged their original antennas and want to restore their system to factory specification without compatibility research. The pair covers both antenna ports on the Air Unit, which uses a spatial diversity configuration to select the stronger signal path in real time — running a mismatched or single antenna degrades this diversity function significantly. For pilots flying casual freestyle at moderate distances, these antennas are fully adequate. Pilots pushing the system to its range limits or operating in dense RF environments will find that third-party high-gain LHCP antennas with the same RP-SMA connector offer a meaningful step up, but these DJI originals represent the reliable, known-good baseline the system was engineered around.