What type of waves which used in radio stations?

Radio waves are a type of electromagnetic radiation, and they are used in radio stations to transmit audio signals. Radio waves are produced by an oscillating electric current, which creates a magnetic field. This magnetic field then induces an electric current in a receiving antenna, which is converted back into an audio signal.

Radio waves are classified according to their frequency, which is measured in hertz (Hz). The frequency of a radio wave determines its wavelength, which is the distance between two successive peaks of the wave. The higher the frequency, the shorter the wavelength.

Radio stations typically use frequencies between 535 kHz and 1605 kHz for AM (amplitude modulation) broadcasts, and between 88 MHz and 108 MHz for FM (frequency modulation) broadcasts. AM and FM waves have different characteristics, and they are each used for different purposes.

* AM waves are long-wave radio waves, and they are less susceptible to interference than FM waves. However, AM waves have a lower fidelity than FM waves, and they are more likely to be affected by atmospheric conditions.

* FM waves are short-wave radio waves, and they are less likely to be affected by interference and atmospheric conditions than AM waves. However, FM waves have a shorter range than AM waves, and they are more likely to be blocked by buildings and other obstacles.

Radio waves are also used for other purposes, such as television broadcasting, mobile phones, and satellite communications.