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544Re: decoding BC station with SDR - changing the LO or filter

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  • Graham Mcleod
    Feb 2, 2012
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      Hans,
      Certain kinds of FFT (& Hardware) can output a -ve & +ve
      Frequency spectrum, with Zero at the centre.
      If downmixed, this translates as LO frequency +/- Separated.
      Upper and Lower Sidebands, with Image Rejection.
      As a new user, I haven't yet discovered if SL can do this,
      or how to configure it for this. However this ought to yield
      reception through "Zero Frequency", with DC coupled ADC's....
      Or a 40Hz central notch, with 20Hz HPF Audio Soundcards?. Gra.
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