Greetings Holger!   
      
    TW>> It is not the Boom that makes it a Log Periodic. IT is the Director   
    TW>> elements.   
      
    RW>> No, the boom is like a folded antenna with shortened radials; the   
    RW>> twin boom is actually one boom, but the radials are stepped, one on   
    RW>> one side, the next on the other side, etc..   
      
    HG> Roy, you are confusing the issue. While Tom is correctly writing   
    HG> about director lengths you are suddenly writing about radials.   
      
   What's confusing about that? Directors are radials and vice versa...   
      
   The other issue is that Tom is thinking that a yagi and a LPA are one and   
   the same antenna, when in fact they are two different designs and each is   
   engineered differently.   
      
   i.e. The LPA antenna normally consists of a series of dipoles (directors,   
   radials) positioned along the antenna axis, which are spaced following a   
   logarithmic function of the frequency.   
      
      
       Have a day!   
      
            R\%/itt - K5RXT   
      
   --- GoldED+/W32 1.1.5-31012   
   --- D'Bridge 3.99   
    * Origin: HAM Radio, aka Amateur Radio. 804? Over! (1:387/22)