A radio frequency (RF) signal refers to a wireless electromagnetic signal used as a form of communication , if one is discussing wireless electronics. Radio waves are a form of electromagnetic radiation with identified radio frequencies that range from 3kHz to 300 GHz.
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Radio frequency waves (RF) are generated when an alternating current goes through a conductive material . Waves are characterized by their frequency and length. Frequency is measured in hertz (or cycles per second) and wavelength is measured in meters (or centimeters).
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