Tuner (electronics)

From Wikipedia, the free encyclopedia

A tuner is a circuit module or free-standing equipment which detects radio-frequency (RF) signals usually of low amplitude and amplifies them and converts them to a form suitable for further processing.

  • A radio tuner receives radio broadcasts and converts them into audio-frequency signals which can be fed into an amplifier driving a loudspeaker. FM tuner, AM tuner, DAB tuner, etc. are types of radio tuner dealing with transmissions using different methods of modulation. The term tuner is used both for part of a radio receiver which also contains an amplifier section and for a boxed piece of equipment to be connected to a separate amplifier.