4 ms·

I'm not sure they could know ahead of time what signals would operate which motor. Plus it'll vary per setup. 40% thrust might bring some rc models down quickl

• snowwrestler 12y ago
  I was thinking that a smart system could vary the input signals and measure whether the aircraft gets closer or farther--teaching itself pretty quickly which signal does what. But now that I think about it, even if the signal is not encrypted, it's certainly operating in a narrow slice of bandwidth, and might be digitally encoded. A naive search would probably take way too long just to find the input signal at all. It would only work if manufacturers were forced to share information that would allow an "authorized" system to quickly find and alter the control inputs. Seems messy and risky. And of course this does nothing for self-controlled drones.
  • ryan-c 12y ago
    There are a very limited number of frequencies used for RC aircraft and I've never heard of the signal being encrypted (authenticated would be more important than encrypted anyway). I also think the control protocols are fairly standardized. The main exception would probably be the ones that are controlled over WiFi (which, as far as I've seen, are not normally encrypted either).
  • corobo 12y ago
    Or just used the mini radar system Plextek (iirc) is creating and have a guy go out there with a beanbag gun and bop the thing out the air http://xkcd.com/538/ http://xkcd.com/538/