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Ive seen online sdrs have a mixer that downconvert the frequency band to baseband and then its sampled I think your question can be answered by clearing up the misunderstanding that made you write this part of your question. All data captured by an SDR is translated down from its original frequency down to being centred around a frequency of 0 Hertz (...


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The biggest difference is that SDR is more of a spectrum analyzer where multiple transmitters can be decoded simultaneously. Scopes are for time domain whereas spectrum analyzers are for the frequency domain. Also SDR has band switched input filters to minimize front end overloading and getting a much better SNR for the weaker signals of interest, you just ...


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