May God bless each & every patriotic Anon, & recycle every shill. Thanks for sticking with it. As fucked up as this board is I can still (after 7+ yrs) find a little info & alot of laughs herer. Ho x 3
>>https://www.youtube.com/watch?v=TRgRz3nSG7o
Incorporate an autotuner/transducer/sound emitter into the airframe. Valleys cancel the peaks, and/or reflect sound away from the drone & target.