In a message dated 05-16-14, Roy Witt said to Ed Vance:   
      
   Hi Roy,   
      
   RW>Here's a vertically polarized LPDA:   
      
      
   RW>           + what are these?   
   RW>           | +   
   RW>           | | +   
   RW>           | | | +   
   RW>           | | | | +   
   RW>           | | | | |   
   RW>  closed|------------+----feed point   
   RW>    loop|____________+----feed point   
   RW>          | | | | |   
   RW>          | | | | +   
   RW>          | | | +   
   RW>          | | +   
   RW>          | +   
   RW>          + and these?   
      
   All "these?" are driven elements cut to lengths for various frequencies   
   within a specified frequency band.   
      
   The booms are not a closed loop. The coaxial feeder is fed through one   
   of the booms with both ends of the shield connected to the boom and the   
   center conductor is connected to the other "boom" at the small end.   
   The outer jacket of the coax shall be removed for the entire length of   
   the "feed through" boom and the shield be allowed to make contact with   
   the boom anywhere.   
      
   The booms must be isolated from the mast where it is mounted or a   
   non-conductive mast should be used.   
      
   This antenna has been fully described in the Ham Radio magazine with   
   element lenghts for various bands of frequencies.   
      
      
   CU AGN, Sam, OH0NC   
      
   aka Holger   
      
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