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Shortwave radio
Ionosphere
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Telecommunications in Italy
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Hilversum
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Greenwich Mean Time
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Telecommunications in Gabon
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Electromagnetic radiation
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Communications in Afghanistan
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Casiquiare canal
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Amplitude modulation
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Telecommunications in Antigua and Barbuda
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Voice of America
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Kauaʻi
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Mika Häkkinen
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Thiruvananthapuram
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Freedom House
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Buchenwald concentration camp
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Frequency-shift keying
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BBC World Service
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1932
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Worcestershire
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The Day After
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Telecommunications in Tuvalu
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Seventh-day Adventist Church
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Pitcairn Islands
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Economy of Morocco
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Telecommunications in Malaysia
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Morse code
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