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Andrus Aaslaid's Early Fascination
- Andrus Aaslaid, an Estonian computer engineer, grew up listening to shortwave radio with its strange sounds in the 1970s.
- He was fascinated by the mysterious voices and numbers broadcasted, which piqued his lifelong passion for shortwave radio.
Shortwave Radio's Global Reach
- Shortwave radio signals can travel thousands of miles by reflecting off the ionosphere.
- This ability makes shortwave ideal for vital global communications and covert messages across continents.
Purpose of Numbers Stations
- Numbers stations broadcast coded numeric messages believed to be intelligence communications for spies.
- These messages are often played with monotone voices and are deciphered using one-time pads by their intended recipients.