This hack enables 1000mW and 1200mW Output Power on your DJI FPV system. Before doing this, please make sure you understand your local regulations regarding radio transmission power and frequency and you are not breaking the law.
By default, the maximum output power of the DJI FPV System is limited to 700mW if you are on FCC mode. With 1200mW you will gain roughly 30% more range, and it gives you better signal penetration. Not bad for an easy software hack, and you don’t have to spend extra on new hardware.
Note that the Vista and Air Unit’s 1200mW power level includes antenna gain, the actual output from the VTX into the antenna, is significantly lower. This is not the same as analog VTX, where the output power at the antenna connector would be consistent with the power level.
However, it’s unclear how it will affect your hardware in the long term (because it gets hotter at higher output power), so do this at your own risk.
Before performing this hack, make sure your system is already on FCC mode. If not here is how to change it.
Once you have done this once, you don’t need to do it again for any other quads / Air Unit / Vista, your goggles will remember this setting.
Here’re what you need to do:
- Create a .txt file, name it
pwr_2inside the text file
- Save and close
naco_pwr.txtto a micro SD card (for your DJI FPV goggles)
- Power on Goggles and Air Unit, WAIT until you see image from camera
- Then put the SD card in DJI goggles
- Restart Goggles
This should work for both DJI Air Unit and Caddx Vista (Runcam Link) VTX’s.
Make sure you power on the goggles before inserting SD card, many people have reported this is the only way to get it working.
To verify you have done it, in the Goggles’ menu, under Settings => Device, you should be able to select 1200mW. Also, by enabling Power Limit, it will give you some protection against overheat when the Air Unit is sitting on the ground.
Text file content meaning:
- pwr_1 = 1000mW option
- pwr_2 = 1200mW and 1000mW option
After it’s done, you can delete the naco_pwr text file and the Goggles will remember this settings until it sees a different pwr value in a naco_pwr text file.