In electronics, a superheterodyne receiver (sometimes shortened to superhet) uses frequency mixing or heterodyning to convert a received signal to a fixed intermediate frequency (IF), which can be more conveniently processed than the original radio carrier frequency. Virtually all modern radio and television receivers use the superheterodyne principle.
Read more about Superheterodyne Receiver: History, Design and Principle of Operation, Advanced Designs, Advantages and Drawbacks of The Superheterodyne Design
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“Gifts must affect the receiver to the point of shock.”
—Walter Benjamin (1892–1940)