Radio receiver

Common card · No. 227325

In radio communications, a radio receiver, also known as a receiver, a wireless receiver, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them into a usable form. It is used with an antenna. The antenna responds to radio waves (electromagnetic waves at radio frequencies) and converts them into tiny alternating currents that receiver applies, which then extracts the desired information. The receiver uses electronic filters to separate the desired radio-frequency signal from other signals picked up by the antenna, an electronic amplifier to increase the signal power for further processing, and finally recovers the desired information through demodulation. Radio receivers are essential components of all radio based-systems. The information produced by the receiver may be in the form of sound, video (television), or digital data. A radio receiver may be a separate piece of electronic equipment, or an electronic circuit within another...

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