Britannica Learn على تويتر: "#HowItWorks: A device called a transmitter turns sound into electric signals. The transmitter combines these electric signals with radio waves of a certain frequency that are spread out
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Propagation of Waves
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radio propagation
Propagation of Waves
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radio waves
Radio Wave - an overview | ScienceDirect Topics
Propagation
Propagation of Waves
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Radio Waves and Microwaves
