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Learn how to replicate longwave radio signals used by radio-controlled clocks using only a laptop or smartphone with wired headphones or speakers in this 14-minute conference talk. Discover the technical principles behind transmitting time synchronization signals through consumer audio equipment, explore the motivations and practical applications for this technique, and examine a hands-on implementation example written in C programming language. Gain insights into radio frequency transmission fundamentals, understand how everyday audio devices can function as makeshift radio transmitters, and explore the intersection of software-defined radio concepts with accessible hardware solutions.
