What is radio frequency signal?
A radio frequency (RF) signal refers to a wireless electromagnetic signal used as a form of communication. Radio waves are a form of electromagnetic radiation with identified radio frequencies that range from 3 kHz to 300 GHz. Frequency refers to the rate of oscillation of the radio waves. RF propagation occurs at the speed of light and does not need a medium like air to travel. RF communication is used in many industries, including television broadcasting, radar systems, computer and mobile platform networks, remote control, remote metering/monitoring, and many more.
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