Facts about the Radio

1. 06

   During World War II, the Allies used radio direction finding technology to locate and destroy German U-boats, sinking approximately 700 submarines and turning the tide of the Atlantic naval war.

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2. 05

   Over 2 billion radios were in use worldwide by 2020, making it one of the most widely distributed communication devices in human history.

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3. 04

   The first commercial radio station KDKA in Pittsburgh began broadcasting on November 2, 1920, pioneering the modern radio industry model.

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4. 03

   Edwin Armstrong's 1933 invention of frequency modulation radio technology reduced static interference by 99 percent compared to amplitude modulation broadcasts.

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5. 02

   Guglielmo Marconi's 1895 wireless telegraph transmission across 2.4 kilometers in Italy established the foundational technology that enabled modern radio communication.

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6. 01

   In 1906, Reginald Fessenden transmitted the first radio broadcast of music and voice from Brant Rock, Massachusetts to ships in the Atlantic Ocean.

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