Episode 98: Electromagnetic Radiation
The Science of Everything Podcast
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The Different Types of Electronic Radiation
Radio waves get their name from the fact that they're used in radio transmissions and other types of broadcasts like television. The way this works is by use of two overlapping waves. You have an input signal, which encodes the key information you want, and then a carrier signal. By modulating that, you can encode a signal, which can then be decoded by the recipient.
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