Frequency Translation/Frequency Mixing/Frequency Conversion/Heterodyning/Intermediate Frequency [HD]

Описание: This video explains what is Frequency Translation. It is also known by other names also like Frequency conversion, Frequency Mixing and also as heterodyning.
In communication systems we sometimes need to shift (Translate/convert) the frequency of a modulated signal to another band of frequency before its demodulation (Detection). So modulated signal is first shifted to a fixed frequency which is known as Intermediate Frequency (IF Frequency). Translating the signal to this frequency makes the processing of the signal easy. these signals processing like Amplification, Filtering and Demodulation etc are easily performed at that shifted frequency.
The Device used for Frequency mixing or Heterodyning is called as Frequency Mixer.

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