If it's 2.4 Ghz, then even the straight RC systems use some form of spread-spectrum frequency hopping. Newer variants include some limited forms of error checki

If it's 2.4 Ghz, then even the straight RC systems use some form of spread-spectrum frequency hopping. Newer variants include some limited forms of error checking, and most drone controllers have a return-to-launch-site feature that can be enabled if they lose contact with the controller. Only slightly more advanced drones can fly a pre-programmed course without talking to the transmitter at all.