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heterodyne
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The answer HETERODYNE has 1 possible clue(s) in existing crosswords.
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Definitions of heterodyne in various dictionaries:
verb - 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
adj - of or relating to the beat produced by heterodyning two oscillations
Having alternating currents of two different frequencies that are combined 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.
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| Possible Crossword Clues |
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| Using two signals — they're done in special combination |
| Last Seen in these Crosswords & Puzzles |
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| Apr 6 2013 The Times - Cryptic |
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| Having alternating currents of two different frequencies that are combined 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 (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. |
| Relating to the production of a lower frequency from the combination of two almost equal high frequencies, as used in radio transmission. |
| Combine (a high-frequency signal) with another to produce a lower frequency. |
| 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 |
| Heterodyne description |
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| Heterodyning is a signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden that creates new frequencies by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of "beats" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers. |