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What are Radio Waves? | Examples, Uses & Spectrum - Video & Lesson Transcript | Study.com
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Radio wave | Examples, Uses, Facts, & Range | Britannica
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Electromagnetic Spectrum | NASA
Long range radio transmission is possible when the radio waves are reflected from the ionosphere. For this to happen, the frequency of the radio waves must be in the range
The Electromagnetic Spectrum - Radio Waves And Radio Spectrum
