Radio Waves are a type of electromagnetic radiation with wavelengths that range from a few millimeters to tens of kilometers. They are used in a variety of applications, including communication, navigation, and broadcasting. Radio waves are generated by a variety of sources, including natural sources such as lightning and man
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They can be received by other antennas connected to a radio receiver; this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications.