I was out at my regular practice field yesterday and after landing a couple of guys walked over asking about the quad. They seemed friendly but one of them said that they know the Phantom uses 2.4GHz band and that a "friend" of theirs has a frequency jammer that could bring it down. I wasn't sure if these guys were serious or not but I did Google it later and found quite a few 2.4GHz jammers available. Legal or not, I'm sure some of the drone haters would get these if they would cause a flyaway or crash considering they have already shown they will shoot them down with a shotgun. I'm thinking that even if they did have a jammer and even if they did use it, the Phantom would RTH (if set up properly) rather than flyaway anyway. What would be the difference if the signal was jammed vs lost as in the transmitter turned off? A jamming signal could not interfere with the Phantom's autonomous functions correct? I could see losing control via the transmitter, but the Phantom should then just come back to the Home point and land. Anyway, I'm not quite as comfortable at my practice field now. Maybe they were just Droneaphobes trying to scare me off?