The Flipper Zero has quickly evolved from a niche curiosity into one of the most widely discussed cybersecurity gadgets in the world. What first appeared to be a quirky, Tamagotchi-like toy with a pixel-animated dolphin has now become a powerful and accessible tool for exploring wireless systems, testing vulnerabilities, and learning the fundamentals of modern…

Among radio amateurs and RF experimenters, one question has persisted for decades: is it possible to legally transmit radio signals without a license, purely for experimental purposes?In the United States, the answer is yes — but only within very specific limits. These limits are defined by the Federal Communications Commission (FCC) under the Code of…