Explore the world of radio frequency technology and software-defined radio in this 48-minute conference talk from Derbycon 2015. Demystify the often-perceived "black magic" of RF as Matthew OGorman delves into GNU Radio, a powerful open-source software development toolkit for signal processing. Gain insights into the fundamentals of RF communication, learn about software-defined radio applications, and discover how to leverage GNU Radio for various projects and experiments in the realm of wireless communications.