Image frequency: In radio reception using heterodyning in the tuning frequency dvd image process, an undesired input frequency that is capable of producing the same intermediate frequency (IF) that the desired input frequency produces.
The term image arises from the mirror-like symmetry of signal and image frequencies image frequency about the beating-oscillator frequency.
Electronics Topics
The field of electronics is the study and use of systems that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves and semiconductors. The design and construction of electronic circuits to solve practical problems is part of the fields of electronic engineering, and the hardware design side of computer engineering. The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.
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