A Pre-History of Radio (Part One)

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A Pre-History of Radio (Part One)

Join historian Alex Magoun on a journey through the history of radio technology from James Clark Maxwell’s theory of electromagnetism to Guglielmo Marconi's use of that theory in long-distance radio…

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A Pre-History of Radio (Part Two)

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A Pre-History of Radio (Part Two)

Continue on the historical journey of the radio industry with historian Alex Magoun as he goes back in time and shares how engineers and scientists improved wireless telegraphy from Morse code to the …

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Crystal Radio

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Crystal Radio

Like game consoles and smartphones today, radios in the 1920s were expensive. Fortunately for teens back then, they could build radio receivers using cheap parts found at home and hardware stores. Wat…

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Radio

Inquiry Unit

Radio

The invention of wireless telegraphy-radio-at the end of the 19th century by Marconi and others made it possible to communicate with anyone, anywhere, around the globe. It soon became apparent, howeve…

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Electric Waves by Dr. Heinrich Hertz, 1857-1894

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Electric Waves by Dr. Heinrich Hertz, 1857-1894

Radio Inquiry Unit

Radio Inquiry Unit Electric Waves, Being Researches on the Propagation of Electric Action with Finite Velocity Through Space, by Dr. Heinrich Hertz, 1857-1894. The English translation of Hertz…

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Pakistan Spectrum Allocation Chart

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Pakistan Spectrum Allocation Chart

Radio Inquiry Unit

Radio Inquiry Unit – Featured Source 1E This chart represents a graphic single-point-in-time portrayal of the Table of Frequency Allocations used in Pakistan. The Pakistan Table of Frequency Allo…

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United States Spectrum Allocation Chart

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United States Spectrum Allocation Chart

Radio Inquiry Unit – Featured Source 1E

Radio Inquiry Unit – Featured Source 1E 2016 chart represents a graphic single-point-in-time portrayal of the Table of Frequency Allocations used by the United States, Federal Communications Comm…

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