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An Introduction to Radios and Emergency Communication

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Radio Frequencies, Bands, Modes and Bandwidth Explained.

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Antennas Part I: Exploring the Fundamentals of Antennas - DC To Daylight

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Radio Waves

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Using Cheap Software Defined Radios to Track Drones and Jammers

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Ham HF Bands: Introduction AD#29

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Vintage Technology: Electronics-- BASIC RADIO CIRCUITRY, Learn How Radio Works, 1971 (History)