heterodyning

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heterodyning

Using an electronic circuit to combine an input radio frequency with one that is generated in order to produce new frequencies: one that is the sum of the two and another that is the difference of the two. Heterodyning is typically used to bandshift incoming frequencies into intermediate frequencies for demodulation. For heterodyning examples, see superheterodyne receiver.
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References in periodicals archive ?
A multitude of output frequencies can be obtained in the indirect approach by hetrodyning or mixing the outputs of two or more oscillators.
This effect, at high frequencies, can be minimized by hetrodyning down to a suitable IF and demodulating at the desirable lower frequency.