Originally Posted by
msjh
I used to own a drone, which I hasten to add I flew legally. It made me wonder whether it is not possible to triangulate the signal from the control unit?
It's not as easy as you might expect.
Drones mostly use the 2.4Ghz band which is the same as the Wifi band and hence lots of other signals.
Also most use frequency hopping spread spectrum transmissions which would make it quite hard to track the signal back to the controller.
If the person flying the drone really does not want to be caught they could even send the drone on a pre-programed GPS mission
and turn off the transmitter so nothing to track.
Given that they are quite small (couple of foot), can be flying at say 400' at 20 knots it would be rather hard to hit them with
gunfire from the ground so it's not at all an easy job to stop someone trying to disrupt an airfield like this.