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Frequency spectrum (components) after sampling

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iggyboy

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I have a question about frequency spectrum (components) after sampling. Lets assume that the frequency content before sampling is:

-a band of frequencyes between 5kHz~10kHz
-399kHz
-402kHz
-803kHz
-807kHz

Sampling frequency is: Fsampling=800kHz and what interests us are frequencies up to Fs.




My answer would be:

-two bands: 5~10kHz, part of the spectrum before sampling and a copy at 785kHz~795kHz

-399kHz, part of the original spectrum
-402kHz, part of the original spectrum

-401kHz, copy of the 399kHz original
-398kHz, copy of the 402kHz original

-3kHz, copy of the 803kHz original
-7kHz, copy of the 807kHz original

-797kHz, copy of the 803kHz original
-793kHz, copy of the 807kHz original



Am I correct or is this wrong? A good example would be great.
 

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