@snacks @kaia @scathach they specifically have a number of non-GPS navigation modes, too. which is important cause a lot of GPS contains speed lockouts specifically so you don't use them on planes without paying the extra vigs.

DJI i think also has some involvement with secret blacklist servers. jones was talking about it some years ago when people tried to take pictures of the southern US border--when there were migrants there none of the commercial drones would let you fly anywhere near it, you'd just get slapped with a denial screen.