Spectrum Analyzer

Discussion in 'General Electronics Chat' started by SwEng, Feb 23, 2007.

  1. SwEng

    Thread Starter New Member

    Feb 23, 2007
    1
    0
    Hi All,

    I am sampling a 70MHz IF signal at 86 MHz (aliasing it at 16 MHz). I need to display the samples in time & freq domain. The time-domain chart is working and displays the samples similar to an oscilloscope. But the freq-domain chart does not look right. I basically FFT'd the samples and plotted the samples up to 43 MHz (sample_rate/2). Is performing FFT on data is all I need to do to build a spectrum analyzer type chart ? Any help and/or comment to point me in the right direction is appreciated.

    Thanx.
     
  2. tek_fool

    New Member

    Feb 24, 2007
    12
    0
    ..........
     
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