Hi David, my intention wasn't to have a go, it was to make sure the problem iteslf is being correctly identified, and that there is actually a problem to begin with. RE: Parrot AR, it may be seemingly recognizable, but nowadays every second quad coming out of China has the same look (WLToys V262 as one example).=20 Really, anything with large ringed prop-guards is going to look quite similar from any sort of distance. If it is in fact a Parrot AR, then it appears there is already a solution: "SkyJack" http://arstechnica.com/security/2013/12/flying-hacker-contraption-hunts-oth= er-drones-turns-them-into-zombies/ Quoting: "It uses encrypted WiFi, so Parrot apparently relied solely on the WiFi protocol for security. The "hack" is to force the drone to disconnect from it's approved WiFi network using a DeAuth attack, and then supply the drone with a new network (controlled by you)." I hope that hasn't just put me on some government watchlist, that was just the first google result Lee > From: David Harmon > Subject: Re: [OT] WIFI SIGNAL SOURCE LOCATOR >> To me there are a few key points that haven't been asked, everyone's > Why do you think you need to know that? That is, if Bob knows it what > does it matter how he knows? > There are some obvious possible answers. For example, one of the most > recognizable toy drones is well known for transmitting its control signal= s > and return video by wifi. http://en.wikipedia.org/wiki/Parrot_AR.Drone --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .