A question that’s been asked many a time, by myself included, is ‘How can I actually tell if my FCC mod has worked?’
When modding GO4 I personally have always been a little bit suspicious of the deejayeye-modder FCC patch. Mainly because there’s nothing to ‘see’, it’s not a tangible setting that has any visuals within GO4 to show whether the hack has actually worked or not.
Today, while reading up on Inspire parameter hacks over on retroroms I stumbled upon this little gem of wisdom which I thought I’d share here.
To find out if you’re running in FCC mode, start your Mavic Pro and controller, and launch your app. I’m assuming you’re running 4.1.22 for the purposes of this, menu options may have moved in other versions but the principal should be the same.
Then once you’re in your app:
- Click the three ‘…’ dots in the top right corner
- Click ‘HD’
- Click ‘Image Transmission State’
You’ll see a graph screen similar to this:
Here lies the secret…
See the thin line running across the graph, towards the ‘~1km’ marking on the right hand side?
Well, if your thin line is placed higher up than the -90dBm (approx -88dBm) then you are flying in FCC mode.
If your thin line is lower than the -90dBm marker (approx -91dBm) then you are flying in CE mode.
To be clear, here’s the line you’re looking for. In this image we are flying with FCC power output, because the thin line is at the -88dBm level:
And for further clarity, in this image we are flying with CE power output, because the thin line is at the -91dBm point:
This may work on other models too, but I’ve only tested it on the Mavic Pro.
