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| Radio Waves Hertzian Waves | High Frequency Waves | Short Waves | Ultrahigh Frequency Waves | Very High Frequency Waves | Frequency Wave, High | Frequency Wave, Ultrahigh | Frequency Waves, High | Frequency Waves, Ultrahigh | High Frequency Wave | Radio Wave That portion of the electromagnetic spectrum beyond the microwaves, with wavelengths as high as 30 KM. They are used in communications, including television. Short Wave or HF (high frequency), UHF (ultrahigh frequency) and VHF (very high frequency) waves are used in citizen's band communication. |