From: jeedom74000@gmail.com   
      
   > Anyhow, my question is about how the control system would look like with the   
   carrier frequency approach?   
      
   [Edit] sorry, I meant to say "Anyhow, my question is about how the control   
   system would look like with the single photodetector approach? "   
      
   --- SoupGate-Win32 v1.05   
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