Also called a "frequency band." See frequency bands, spectrum, satellite frequency bands and optical bands. (2) A group of frequencies that occur naturally such as the audio spectrum. See audio.

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Created with Sketch. For those who are suffering from depression, listening to music and/or binaural beats in the frequency range corresponding with alpha, theta, or delta brain waves can provide ...

The Frequency Range 3 (FR3) band, which includes frequencies from about 7 GHz to 24 GHz, has recently been made available for commercial use by the Federal Communications Commission (FCC).