From: bill.sloman@ieee.org   
      
   On 13/11/2025 5:02 am, john larkin wrote:   
   > On Wed, 12 Nov 2025 17:28:04 GMT, Jan Panteltje    
   > wrote:   
   >   
   >>> john larkin wrote:   
   >>>> On Wed, 12 Nov 2025 16:11:03 +1100, Bill Sloman    
   >>> wrote:   
      
      
      
   > The problem is to find an audio spectrum analyzer with -150 dB   
   > distortion.   
      
   Not if you filter out almost all of the fundamental before you feed the   
   residual signal into the spectrum analyser.   
      
   --   
   Bill Sloman, Sydney   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)