"radio spectrum." YourDictionary, n.d. Web. 11 October 2018. <http://www.yourdictionary.com/radio-spectrum>.
radio spectrum. (n.d.). Retrieved October 11th, 2018, from http://www.yourdictionary.com/radio-spectrum
The part of the electromagnetic spectrum used to transmit voice, video and data. It uses frequencies from 3 kHz to 300 GHz. See spectrum.
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