4 ms·

30kw microwave radar would probably work too. You can buy the magnetrons on alibaba for a couple hundred bucks.

• Zenst 7y ago
  Yip - rainfall radar would pick up swarms of this scale - many instances of insect swarms being picked up upon weather rain radar.
  • jcims 7y ago
    I'm thinking cook their little brains in flight without damaging crops.