HG>TW>When one does an internet Search for LPA antennas it's picture comes   
   HG>TW>up along with the Twin Boom one Roy had been talking about and both   
   HG>TW>are called LPA antennas.   
      
   HG>In that case the information source on the Internet doesn't know what a   
   HG>Log Periodic Antenna (LPA) and its feed system mean.   
      
   HG>TW>And dispite the physical differneces they both are using the same   
   HG>TW>Theroy to widen the bandwidth of the Antenna.   
      
   HG>I wouldn't say they do. A real LPA is fed at the small end and what we   
   HG>would call parasitic elements are in reality staggered 1/4 wl driven   
   HG>elements.   
      
   And that is exactically the same as the antenna I am referiong to. ALL   
   the elements are active there are NO directors or reflectors. Plus   
   instead of using two support booms with half the elments connected to   
   one and the other half connected to the other one all the elements are   
   supported, but insulated from a single boom and they use wiring   
   instead of the boom for the feed connection.   
      
   Here is the wiring diagram   
      
   http://tinyurl.com/krd4xv3   
      
   The end result is the same. A very wideband Antenna with good gain.   
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