In a message dated 05-19-14, Roy Witt said to Holger Granholm:   
      
   Howdy Roy,   
      
    HG> In the RSGB VHF/UHF Manual that antenna type is called "Log-periodic   
    HG> Yagi bandpass antenna". That is also the basis for the "Swan Yagi" as   
    HG> made by the Swan TV antenna manufacturer in the US and also presented   
    HG> by Ed Tilton, W1HDQ in the QST magazine.   
      
   RW>I think you'll find that Swan has been out of business for decades and   
   RW>Ed died in 1997...   
      
   So what?   
   Does that diminish their impact on the technical progress!   
      
   73 de Sam, OH0NC   
      
   aka Holger   
      
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