Unsolved Mysteries: Radio Broadcasts

Mysterious short-wave radio broadcasts have been heard, often on the air since the 1950s, and usually consisting of a sampled or synthesized human voice, reading out random strings of digits, usually in groups of five, in various languages and accents not always matching where the signals seem to be coming from. They can appear out of nowhere and disappear just as quickly. Confusion about their purpose has led many to believe that they’re related to intelligence services, ghosts or extraterritorial life. Judge for yourself today on mysteriously listed.

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