That sounds fine provided the airplane is out a ways. What about when an airplane is slow and over the runway or the threshold? That type of setup could easily put the airplane into the pilots station. IMO a bit more likely as while on final approach some less experienced guys tend to point the TX antenna towards the airplane where the signal pattern emitted from the antenna is weakest. If said airplane has an ignition system in front of the receiver the problem gets worse. I will stick with my failsafes set to engine off, surfaces nuetral.