GPS SPOOFING RESOLUTION

[Zatara]

So im a professional drone operator now and all of the sudden most of my work is on halt due to GPS spoofing in most locations in lebanon (caused by the war in nearby countries )
basically whats happening is that 2 min from take off the drone will think it is in a no fly zone mainly the airport and then auto land or even worse it will loose the gps entirely and a flyaway will happen
doing some research i found out that my mavic 3 can be hacked to fly in fcc mode and override the nfz mode
is this applicable ? and how can i do it ? and do u think doing this will help me get through the issue
please if anyone has an idea or a solution share it because the working season is just begining and it feels like im out of my job
thank you

 

[Sir Maxwell Greene]

Hey Zatara, FCC the hack is possible. Best do a search here on the forums for "FCC Hack", you'll find details where to buy the hack,(about $40 last i checked). Most reliable is a guy on Telegram.
There are a few Hacks out there, im sure others will chime in with options or advice. I have the FCC hack from Telegram installed, i stay in Bangkok and with ll the interference here in the city the CE label is almost useless.

 

[waynorth]

If your Mavic 3 has firmware 01.00.1000 you can use Drone-Hacks to remove NFZ and enable FCC.
Have a look at Drone-Hacks, the best way to hack your DJI Drone - Birdmap and scroll down to Mavic 3.

There is also a hacked version of Mavic 3 firmware, hacked by Russians. It is called firmware 1001 and can be found on the net if you do a search. It can be a bit tricky to install, but is supposed to give your Mavic 3 complete freedom.

 

[Sir Maxwell Greene]

This post may be useful too:

Mavic 3 CE to FCC mode

Hi there, I recently bought a Mavic 3 and i was hoping to get the FCC mode working since im based in Europe, maybe someone could recommend the best FCC hack for a easy one time install? The drones firmware is called 01.00.1000 And i have the DJI RC remote with the screen. Thanks alot !

mavicpilots.com

 

[Meta4]

or even worse it will loose the gps entirely and a flyaway will happen

???
Without GPS, your drone can't fly away to anywhere.
Surely you mean is that the drone ends up in Atti Mode without position holding.
It should be perfectly controllable in Atti Mode, but the handling would be different, without any "brakes".

 

[slup]

...all of the sudden most of my work is on halt due to GPS spoofing in most locations in lebanon

basically whats happening is that 2 min from take off the drone will think it is in a no fly zone...or even worse it will loose the gps entirely and a flyaway will happen

Both these effects with NFZ & loosing GPS doesn't sound like only spoofing...

NFZ's come from the DJI Flysafe material in your drone & are dependent on GPS for a position so the DJI Fly app knows where your drone is, secondly the NFZ can be valid & if you fly you may violate regulations that the official authorities want to impose... surely nothing you want if flying professionally.

If the GPS reception is lost even though your drone is up on height surrounded by an unobstructed sky... it can be spoofing, & by losing GPS your drone reverts to Atti mode... meaning your drone no longer have positional hold, it will instead drift with whatever affecting it & will not auto brake when releasing the sticks... it will not "Flyaway"... you will be in control all the time. Depending on what you do with your drone professionally, it may be a problem... flying close to thing's for inspection purposes for instance. If you aren't used to fly in Atti mode, being close to obstacles can mean that you crash.

...doing some research i found out that my mavic 3 can be hacked to fly in fcc mode and override the nfz mode...

Hey Zatara, FCC the hack is possible...

If your Mavic 3 has firmware 01.00.1000 you can use Drone-Hacks to remove NFZ and enable FCC...

First of all... FCC doesn't solve GPS spoofing (or a bad GPS reception), so a FCC hack will not help at all, it's all about the connection between the RC & drone.

And the Drone-Hackz "hack" for the NFZ is based on a custom Flight Controller & not a software hack only... by doing that investment & then fly in NFZ could mean high penalties, bad reputation for your business & even that you being banned from continue with your business.

 

[Meta4]

Both these effects with NFZ & loosing GPS doesn't sound like only spoofing...

GPS jamming might have been a more accurate term.
I've seen the data from several flights in that part of the world that clearly show the effects of GPS Jamming.

 

[slup]

GPS jamming might have been a more accurate term.

Yeah, you're right... my non native English language tricked me, & maybe also the OP?

Or...
He could be spoofed into an NFZ even though he isn't flying there for real. And jammed when he looses the GPS reception & gets Atti mode.

In my earlier post I meant Jamming...

-Spoofing is when something is making a GPS receiver calculate a false position.
-Jamming is when the GPS satellite signals is overpowered locally so that a receiver can no longer operate.

 

[Zatara]

Both these effects with NFZ & loosing GPS doesn't sound like only spoofing...

NFZ's come from the DJI Flysafe material in your drone & are dependent on GPS for a position so the DJI Fly app knows where your drone is, secondly the NFZ can be valid & if you fly you may violate regulations that the official authorities want to impose... surely nothing you want if flying professionally.

If the GPS reception is lost even though your drone is up on height surrounded by an unobstructed sky... it can be spoofing, & by losing GPS your drone reverts to Atti mode... meaning your drone no longer have positional hold, it will instead drift with whatever affecting it & will not auto brake when releasing the sticks... it will not "Flyaway"... you will be in control all the time. Depending on what you do with your drone professionally, it may be a problem... flying close to thing's for inspection purposes for instance. If you aren't used to fly in Atti mode, being close to obstacles can mean that you crash.




First of all... FCC doesn't solve GPS spoofing (or a bad GPS reception), so a FCC hack will not help at all, it's all about the connection between the RC & drone.

And the Drone-Hackz "hack" for the NFZ is based on a custom Flight Controller & not a software hack only... by doing that investment & then fly in NFZ could mean high penalties, bad reputation for your business & even that you being banned from continue with your businesS

The problem is that when the drone is in atti mode it just drifted towards a building the went towards the sea to land there and i was trying to bring it back with the controller but it wouldn't respond
maybe if its in fcc the controller will have better connection with the drone or not?

 

[Zatara]

Yeah, you're right... my non native English language tricked me, & maybe also the OP?

Or...
He could be spoofed into an NFZ even though he isn't flying there for real. And jammed when he looses the GPS reception & gets Atti mode.

In my earlier post I meant Jamming...

-Spoofing is when something is making a GPS receiver calculate a false position.
-Jamming is when the GPS satellite signals is overpowered locally so that a receiver can no longer operate.

its a mix between the two because its happening with google maps also the location first starts to give the airport and then the gps signal is completely lost

 

[Meta4]

The problem is that when the drone is in atti mode it just drifted towards a building the went towards the sea to land there and i was trying to bring it back with the controller but it wouldn't respond

If it loses GPS, the drone will drift with any wind and when you release the sticks it will keep drifting.
If you aren't used to it, it might feel like it isn't responding but it does .... just differently.

maybe if its in fcc the controller will have better connection with the drone or not?

GPS interference shouldn't make any difference to the control signal.

With the incidents that I've seen, the GPS interference seems to work from about 30 metres above ground.
Reducing height brings you back into GPS reception.
If you encounter it again, watch the satellite count as you climb and if it drops out, bring the drone down again, keeping an eye of satellite numbers.

 

[slup]

The problem is that when the drone is in atti mode it just drifted...
maybe if its in fcc the controller will have better connection with the drone or not?

As said... FCC will only increase the transmission power compared to the CE mode, it will not make any difference when it comes to GPS spoofing or jamming. If you can't keep control of your drone when in Atti mode & keep it near... the only thing that FCC will do is to make your drone drift even further away before you lose the connection & it auto lands.

its a mix between the two because its happening with google maps also the location first starts to give the airport and then the gps signal is completely lost

That doesn't necessarily mean that the GPS is "Spoofed"... sounds more like that the reception is jammed (& therefore the positional quality is bad) making the first visible position being a long way from you, before it then cuts out entirely.

 

[Paint Rock Drones]

Is it possible that there are two problems, GPS spoofing (making it look like the drone was in a NFZ when it was not) as well as a signal jammer that was blocking the signal from the controller to the drone (which would explain why the drone was non-responsive)?

 

[AMann]

If it loses GPS, the drone will drift with any wind and when you release the sticks it will keep drifting.
If you aren't used to it, it might feel like it isn't responding but it does .... just differently.

GPS interference shouldn't make any difference to the control signal.

With the incidents that I've seen, the GPS interference seems to work from about 30 metres above ground.
Reducing height brings you back into GPS reception.
If you encounter it again, watch the satellite count as you climb and if it drops out, bring the drone down again, keeping an eye of satellite numbers.

How does that work out? Is it ground-based GPS signal jamming and when you go low enough you’re just out of its signal line of sight?

 

[Meta4]

How does that work out? Is it ground-based GPS signal jamming and when you go low enough you’re just out of its signal line of sight?

I'm guessing that the source is likely to be far away and their signal just isn't strong down low, being affected by line of sight?
When there were US warnings of GPS jamming tests, they would give details about what altitudes would be affected and they had a similar pattern.
But I'm not sure if that was by design or just the physics of signal propgation.

 

[Zatara]

I'm guessing that the source is likely to be far away and their signal just isn't strong down low, being affected by line of sight?
When there were US warnings of GPS jamming tests, they would give details about what altitudes would be affected and they had a similar pattern.
But I'm not sure if that was by design or just the physics of signal propgation.

well the thing about attitude is confusing because now fishermen are also complaining about gps spoofing when they are out sea so i dont think its related to atiitude anymore even though when it comes to drones the gps signal isnt lost at low attitude or so i think

 

[Meta4]

well the thing about attitude is confusing because now fishermen are also complaining about gps spoofing when they are out sea so i dont think its related to atiitude anymore even though when it comes to drones the gps signal isnt lost at low attitude or so i think

I was commenting on several cases for which I've seen the flight data.
They showed the drone launching with good GPS, but satellite numbers falling off above approx 100 ft.

 

[engineerfpv]

So all of you commenting that it wouldnt affect your flight when gps spooling/hack its on, have no idea whats happening to the drone. I live in Cyprus and the gps attacks affects us when we are near the sea.
What happen is: lets say you have correct gps before you take off. You take off and you are good and flying, then gps attack get you. you sattelites goes to 0 and then 10 or whatever number and you are in the center of beirut airport. dji fly pops up a warning saying tha you have 100s to land as you are flying in a restricted area and you are actually flying in atti mode (but drone thinks you are in gps, but the gps is always the same position so it doesnt give any feedback to correct wind or speed). sometimes the lebanon gps glitches a bit so it not always the same position so that bring it back to the flight controller to randomly do some minor twitches in the air to try to fix what it think it moves.
No problem so far. we can of course land and fly in Atti.
The problem is THIS!!!
As soon as your drone gets correct location from where you are. The position lock of the dji system is trying to take your drone to the last position that it was before. So for my side from Lebanon to go back to Cyprus. Theres absolutely nothing that you can do except go up and down. The drone just goes full speed and it tries to go like 200+km away, nothing can stop it as said before its not trying to go back to home position but it tries to go back to where it was 2seconds ago, correclty saying where the drone though it was 2seconds ago. The only way to that drone to be saved its to get 0 satellites again in the air and then you get full control and can land as soon as possible. I havent tried it to see what happens when there is an obstacle and vision sensors works.

This happen to me in more than 5 times to fully understand the problems and I managed to to some tests like taking of from my hand and as soon as the gps happens to grap the drone and change modes and move the sticks around to see whats happening. on my tests. after some time the dji fly app comes with an error system navigation error, where the drone just stops using angle mode and it goes in a kinda acro mode with angle limitation to 45degrees, but the sticks are just so random, the yaw might do roll and the roll might do half yaw and pitch, and whatever movement you do and leave the sticks the drone stays at that position, it doesnt go back to level.

 

[lebaneso]

So all of you commenting that it wouldnt affect your flight when gps spooling/hack its on, have no idea whats happening to the drone. I live in Cyprus and the gps attacks affects us when we are near the sea.
What happen is: lets say you have correct gps before you take off. You take off and you are good and flying, then gps attack get you. you sattelites goes to 0 and then 10 or whatever number and you are in the center of beirut airport. dji fly pops up a warning saying tha you have 100s to land as you are flying in a restricted area and you are actually flying in atti mode (but drone thinks you are in gps, but the gps is always the same position so it doesnt give any feedback to correct wind or speed). sometimes the lebanon gps glitches a bit so it not always the same position so that bring it back to the flight controller to randomly do some minor twitches in the air to try to fix what it think it moves.
No problem so far. we can of course land and fly in Atti.
The problem is THIS!!!
As soon as your drone gets correct location from where you are. The position lock of the dji system is trying to take your drone to the last position that it was before. So for my side from Lebanon to go back to Cyprus. Theres absolutely nothing that you can do except go up and down. The drone just goes full speed and it tries to go like 200+km away, nothing can stop it as said before its not trying to go back to home position but it tries to go back to where it was 2seconds ago, correclty saying where the drone though it was 2seconds ago. The only way to that drone to be saved its to get 0 satellites again in the air and then you get full control and can land as soon as possible. I havent tried it to see what happens when there is an obstacle and vision sensors works.

This happen to me in more than 5 times to fully understand the problems and I managed to to some tests like taking of from my hand and as soon as the gps happens to grap the drone and change modes and move the sticks around to see whats happening. on my tests. after some time the dji fly app comes with an error system navigation error, where the drone just stops using angle mode and it goes in a kinda acro mode with angle limitation to 45degrees, but the sticks are just so random, the yaw might do roll and the roll might do half yaw and pitch, and whatever movement you do and leave the sticks the drone stays at that position, it doesnt go back to level.

Hi thanks for the detailed reply it seems u have done some tests on the matter but do u think that putting a limit on the flight distance would work or maybe inducing atti mode as a replacement to sport mode will this help and is it feasable on the mavic 3

 

[engineerfpv]

Hi thanks for the detailed reply it seems u have done some tests on the matter but do u think that putting a limit on the flight distance would work or maybe inducing atti mode as a replacement to sport mode will this help and is it feasable on the mavic 3

The tests where done on mavic 3 pro and mini 3 pro. On the mini I could replace the sport and add atti mode. when i was flying atti it was okay but after that the location changed to beirut and then again back to cy, the system navigation came up and it was all crazy. And even when switching modes at that time nothing was changing on the drone. I want to do more tests. like what happens if i keep it all the time atti.