On Tuesday, January 28, 2014 12:40:35 PM UTC-5, haitic...@gmail.com wrote:   
   > On Monday, January 27, 2014 10:56:13 AM UTC-5, gghe...@gmail.com wrote:   
   >   
   > > On Saturday, January 25, 2014 7:39:25 AM UTC-5, haitic...@gmail.com wrote:   
   >   
   > >   
   >   
   > > > Hi George,   
   >   
   > >   
   >   
   > > >   
   >   
   > >   
   >   
   > > > You must understand, I am bringing to this conversation about the   
   intelligence of a house fly.   
   >   
   > >   
   >   
   >   
   >   
   > > >   
   >   
   > >   
   >   
   > > > JB   
   >   
   >   
   >   
   > Hi George   
   >   
   > No problem. What have you used lock-in for?   
   Wow... ~30 yr's of research, it'd take too long to remember 'em all.   
   >   
   > I have certainly been impressed my the amateur radio guys who put out 200   
   watt signals and detect its bounce from the moon. They process the signal from   
   a sound card on their PC!   
      
   I did this,   
   http://teachspin.com/instruments/signal_processor/index.shtml   
   ~10 years ago.  Perhaps the worlds 'worst' lockin that still makes money.   
   I told my boss it would never sell,   
   (you can buy a low end SRS for the same amount)   
   but I was wrong.   
      
   It's one saving grace, it's that there are a whole lot of useful   
   modules that can be used for other signal processing tasks.   
      
   I didn't learn much about lockins,   
   but lots about ground (currents/loops)   
   and other low level interference.   
      
   George H.   
   >   
   > jb   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)