Want something else interesting to look into? Look up "Number Stations". Archive: https://archive.today/IWeVS From the post: >>Russia's mysterious 'Doomsday Radio' came to life on Monday, sending out two cryptic voice messages to unknown listeners. The Cold War-era shortwave station has been broadcasting a continuous, monotonous buzzing sound since the 1970s. Located about 18 miles from Moscow, it is believed to be part of a secret military communications network, possibly even a failsafe linked to Russia's nuclear command system. Today, the usual buzzing was interrupted twice with cryptic messages in Russian, consisting of numbers, names or codewords.