http://arstechnica.com/information-technology/2016/05/dronebuster-will-let-you-point-and-shoot-command-hacks-at-pesky-drones/
"The drone 'killer' getting the most attention at Sea Air Space was the DroneDefender,
a system developed by researchers at the nonprofit research and
development organization Battelle. DroneDefender is a two-pronged drone
jammer—it can disrupt command-and-control signals from a remote operator
or disrupt automatic GPS or GLONASS guidance, depending on which of the
devices' two triggers is pulled.
Powered by a small backpack, DroneDefender looks like some futuristic
over-under, radio-frequency shotgun-grenade launcher. Targeted through a
simple optical sight, the device has a range of about 400 meters.
Battelle calls it a 'directed RF energy weapon'—it sends out a jamming
signal in the Industrial, Scientific and Medical (ISM) bands or global
positioning bands in a 30-degree cone around the point of aim.
Aboard the Department of Defense's Stiletto 'marine demonstrator' boat, Jake Sullivan was showing off his company's own counter-drone "gun," the Dronebuster. Sullivan, chief technology officer of California-based Flex Force,
said that his company began development of Dronebuster shortly after
drones interfered with firefighters in California last year. The intent
was to develop something for first-responders and local law enforcement."
A
version of the Dronebuster is already in the hands of some federal
government customers. That device uses broadband jamming like the
DroneDefender. It has the advantage of being much smaller than the
DroneDefender, and it can be aimed using optical sights or an integrated
radio frequency power meter and signal analyzer. Someone trained on the
device can even distinguish what kind of signal is being emitted from
the drone—telemetry (such as remote video streaming) or control. Still,
its jamming technology makes it illegal to use in the US.
But a new version being developed by Flex Force operates completely
within FCC regulations, though depending on what kind of drone is
targeted, the new device may require an FCC license. Instead of jamming
C&C signals, the new Dronebuster exploits weaknesses in the drone
communications protocols themselves, enabling the Dronebuster's operator
to trigger the 'fly home' command on some drones and the 'land' command
on others. It does so by cycling through command sets for various drone
systems."
These are good things to have. I wonder if there would ever be a need for the public to own such things?
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