comment: >
  
  It recquires atleast 30 metric buttloads of power to actually cause harm to a physical component from a few hundred meters
  Theres a reason wireless charging is shite even from a few milimeters away its only 70% as effective as just having wires
context: They better shoot down those drones. >
  
  Ukrainians use this little signal shooter to disable a UAV's rotors and bring it down to the ground. How does South Korea not have this tech yet? >
  
  Those signal shooters only work against radio controleld drones. If they have a preprogrammed flightpath they [edit:BurnoutEyes has a point] ~~don't~~ might not do anything. Edit: Depends on the jamming systen of SK and drone navigation of NK. 
  If those were small propelor spy drones, then wasting patriot missles on them is an absolute waste.
  Until we know what kind of drones North Korea used, it's hard to say what South Korea could to better. >
  
  
  If they have a preprogrammed flightpath they don't do anything.
  
  Some of them try to interfere with the crystal oscillators and clock distribution networks. >
  
  How do they do this? >
  
  They blast a bunch of directional RF at it tuned to different harmonics of the oscillator in an attempt to mess up the PLL. The higher frequencies of the harmonics have shorter wavelengths and can get into PCB traces. It only takes a little decoherence to fuck it all up.
  They decided to violate Part 15 of the FCC rules really hard.