IN INDONESIA, Tuned for each Antenna. On its own design, Helical has 180ohm impedance which is not matched with our FPV system with 50ohm impedance. Hence so-called helical tuning is the most important part to ensure the antenna match with our FPV system to provide you with the most efficient directional antenna.

Helical 12 turn is designed to get most range out of your 5.8GHz gear. Covering 90-100 degree signal beam and providing highest gain available on 5.8GHz while maintaining efficiency.

Old Radio Transmission, is passionate about antennas thats the reason why their antennas work flawlessly. We tested the Helical 3Turn whilst flying a tiny whoop, the transition from indoor to outdoor flying was not an issue with these antennas You can find more ORT antennas here.

ORT Helical 12 Turn Product Features.

Hand Tuned, providing highest gain available on 5.8GHz while maintaining efficiency.
Enamelled Supreme Wire(anti rust)
Original Low loss RG402 cable
High quality acrylic, premium look.