Heterodyne vs. Homodyne — What's the Difference?

A heterodyne is a signal frequency that is created by combining or mixing two other frequencies using a signal processing technique called heterodyning, which was invented by Canadian inventor-engineer Reginald Fessenden. Heterodyning is used to shift one frequency range into another, new frequency range, and is also involved in the processes of modulation and demodulation.

Pertaining to two waves which originate from a single radiation source, or have exactly the same frequency.

Combining electrical signals of two different frequencies to produce two new frequencies, the sum and difference of the original frequencies, either of which may be used in radio or television receivers by proper tuning or filtering.

To combine two waves of identical frequency.

To combine (a radio-frequency wave) with a locally generated wave of different frequency in order to produce a new frequency equal to the sum or difference of the two.

Of two oscillations: having two slightly different frequencies such that, when combined, they produce a beat

The beat so produced

Either the sum or difference of the two oscillations

To produce heterodyne interference in a radio

To change the frequency of a signal by such a process

Combine (a radio frequency wave) with a locally generated wave of a different frequency so as to produce a new frequency equal to the sum or the difference between the two

Of or relating to the the beat produced by heterodyning two oscillations