Explore RF retroflectors, emission security, and software-defined radio in this comprehensive conference talk from TROOPERS15. Dive into leaked classified content, the NSA Playset, and RF backscatter communication. Learn about intentional illumination, radar technology, and antenna implants. Examine various retroflector designs, clock and data signals, and oscilloscope triggering techniques. Discover experiments with lower frequencies, pixel clocks, and distance measurements. Gain insights into the intersection of radio frequency technology and security through practical demonstrations and in-depth explanations.