The Soviet Radar That Jammed Global Radio

The Duga radar system sent out powerful, rhythmic pulses that disrupted radio signals across the globe. This mysterious clicking sound, nicknamed the Russian Woodpecker, led many to fear a covert mind-control experiment.

During the Cold War, this massive radar network was designed to detect incoming ballistic missiles by bouncing signals off the upper atmosphere. Its constant, repetitive interference became a nuisance for amateur radio operators and commercial broadcasts worldwide. People speculated it was everything from a weather experiment to an attempt at manipulating human brainwaves. In reality, it was just a raw, brute-force method of early warning that eventually became obsolete as satellite technology improved.