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DJI O3 Air Unit FCC Range Hack How-To

admin by admin
November 24, 2022
in Technology


The DJI O3 Air Unit is only for two days on the market, and it has already been hacked. If you are in the FCC region, you will get out of the box the best possible range. Instead, the CE version has a much shorter transmission distance. According to the manufacturer’s technical specs, in FCC mode range is 10KM, and in CE mode is only 2KM. Of course, these distances can be obtained only in 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 worldwide, particularly in Europe (CE). That means performing this range hack without owning the required permits to transmit stronger signals would be illegal.

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O3 AU Transmission 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 are for informational purposes only. FirstQuadcopter will not be responsible for any action performed by any reader!

Performing the FCC unlock on the O3 Air Unit is identical to the DJI AVATA range hack. Practically, you just need to create an empty plain text file with the name ‘ham_cfg_support’, save it with no extension, and copy it to the root of the micro SD card on the FPV Goggles 2V2. After you restart the goggles and power them ON, the AU O3 FCC mode is enabled, and you can enjoy the best range regardless of your location. The Ham file can be downloaded from here.



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