The DJI O3 Air Unit has only been on the market for two days, and it's already been hacked. If you're in the FCC region, you'll get the best range possible. Instead, the CE version has a much shorter transmission distance. According to the technical specifications of the manufacturer, in FCC mode the range is 10KM and in CE mode it is only 2KM. Of course, these distances can only be achieved under optimal conditions, flat ground, no obstacles and low RF noise.

After unlocking FCC mode, the VTX power increased from a few mW to over 1W. Remember that 25mW is the maximum unlicensed power you can transmit in many countries around the world, especially in Europe (CE). This means that performing this range hack without having the necessary permissions to transmit stronger signals would be illegal.

O3 AU transmit power (EIRP) and range:

  • FCC: < 33 dBm | 10KM
  • CE: < 14 dBm | 2KM
  • SRRC: < 30 dBm | 6KM

DJI O3 Air Unit FCC Unlock Tutorial

Disclaimer: All data and information provided in this article is for informational purposes only. FPV.bg will not be held responsible for actions taken by any reader!

Performing an FCC unlock on the O3 Air Unit is identical to the DJI AVATA range hack. Basically, you just need to create an empty plain text file named "ham_cfg_support", save it without extension and copy it to the root of the FPV Goggles 2\V2 micro SD card. After restarting the glasses and turning them ON, the AU O3 FCC mode is enabled and you can enjoy the best coverage regardless of your location.

Other related articles:
How to unlock more range on DJI FPV Goggles V2
DJI Avata How to unlock more power and range