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19800RE: [SDR#] Using SDR# as spectrum analyzer

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  • Henry Abbott
    12 Mar

      Hi Dennis,


      I would like môre info on how you do this. As far as I remember, one can only access the “Spectrum Analyzer” when you have selected Airspy, not with RTL-SDR so how have you fooled SW or otherwise?





      From: SDRSharp@... [mailto:SDRSharp@...]
      Sent: 13 March 2017 12:56 AM
      To: SDRSharp@...
      Subject: [SDR#] Using SDR# as spectrum analyzer



      Not sure if my posts are going out or not, I put something up earlier that didn't appear.

      Anyway, I've been testing the SW on an RTL-SDR as an inexpensive spectrum analyzer.

      I was having some problems, but I think I've worked them out.  It does give good relative

      readings which are helpful in VHF amplifier testing and band pass filter testing.

      Still not sure what the notation 'dBFS' means when looking at the peaks on the screen.

      Any input would be helpful.

      BTW, the combination of SDR# and RTL-SDR has a gain of about 37dB for the indicated



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