Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Learn about frequency hopping techniques for protecting consumer and DIY drones from RF warfare in this DEF CON 31 conference presentation. Explore how spread spectrum technology can enhance drone security by making anti-drone systems less effective, while addressing key technical challenges like maintaining clock stability and transmitter-receiver synchronization without increasing hardware costs. Discover practical approaches to implementing these defensive measures in affordable drone systems through detailed explanations from security researchers David Melendez and Gabriela Garcia.