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Tag: electromagnetic spectrum

Riding the Frequency Waves: NSWC Dahlgren Division Chief Engineer Recognized for Excellence Supporting Electromagnetic Spectrum Programs
August 31, 2021 — The mobile telegraphy apparatus, a predecessor of today’s two-way radio, was first introduced in the British Army during the first decade of the 1900s, and used to great effect during the Boer War and World War. The device used radiofrequency signals – radio waves that are a type of electromagnetic radiation – to transmit and receive communicative...

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