Re:DJI Puts $145K Bounty on the Drone Pilots Who Were Disrup...
by sp332 on Thursday April 27, 2017 @09:44AM
(#14211379)
I don't see why the signal has to go out the back. Otherwise dish-type antennas couldn't work. And those TV aerials would work as well pointed 180 degrees away from a signal as straight at it, which isn't true.
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Re:DJI Puts $145K Bounty on the Drone Pilots Who Were Disrup...
by tomswartz07 on Tuesday May 02, 2017 @09:52AM
(#14246286)
It's based on the antenna design. These 'jammer' devices aren't dish based; they're designed after Yagi-Uda style antennas, in the format of a 'rifle' that the user points at the drone.
The radiation pattern for them is exactly as I described. [1]
[1] https://www.electronics-notes.com/images/antenna-yagi-radiat...