RW> TW> Again you are not paying attention. Tjhere are TWO Styles of LPA   
   RW> TW> antennas.   
      
   RW>Yeah, one with the boom in parallel and one with the booms at a 7.5deg   
   RW>angle to each other. You have proved that with the link below. What you're   
   RW>missing is that you're thinking in terms of a yagi and not in terms of a   
   RW>LPA...   
      
   What we have here is a Termonology Gap.   
   What you are caling "Booms" are really Antenna "Elements"(Directors,   
   reflectors etc). And YES the elements for the style LPA you are talking   
   about are mounted perpendulclar to the antenna "Boom" (Support   
   structure) and there are two suppport structures and the left elements   
   are mounted on one and the right elements on the other.   
      
   The one I am referencing are mounted at an angle and AL on the same   
   support boom. They aqre also insulated from the Boom and the connection   
   to each element alternates in connection to the feed line as in the   
   picture I referenced.   
      
   RW> TW> the one i am adressing is only a Single Boom with all the   
   elements RW> TW> instlated form the Boom the enable ht6e unique wiring   
   arangement..   
      
   RW>That would be a yagi.   
      
   RW>Every element in a LPA is part of the antenna, where none of the elements   
   RW>are insulated from the booms..   
      
   RW> TW> Here is a picture reference site:   
      
   RW> TW> http://www.antenna-theory.com/antennas/wideband/log-periodic-dipole.p   
   RW> TW> hp   
      
   RW>"If we assume 3 active elements as in Figure 2, then one could argue that   
   RW>this antenna resembles somewhat a 3-element Yagi-Uda Antenna. That is, the   
   RW>driven arm is in the center, the reflector element is the longer dipole to   
   RW>the right, and the director is the shorter dipole to the left as seen in   
   RW>Figure 2. As such, the direction of peak radiation for the LPDA in Figure   
   RW>2 is towards the left."   
      
   RW>Then, if you click on the 'yagi-uda antenna' link in that text, you get   
   RW>this;   
      
   RW>"The Yagi antenna consists of a single 'feed' or 'driven' element,   
   RW>typically a dipole or a folded dipole antenna. This is the only member of   
   RW>the above structure that is actually excited (a source voltage or current   
   RW>applied). The rest of the elements are parasitic"   
      
   RW>Note that in the LPA, each element and the boom are driven (excited)...   
      
   RW>Thanks for helping to make my point.   
      
      
   RW>    Have a day!   
      
   RW>         R\%/itt - K5RXT   
      
   RW>--- GoldED+/W32 1.1.5-31012   
   RW>--- D'Bridge 3.99   
   RW> * Origin: HAM Radio, aka Amateur Radio. 804? Over! (1:387/22)   
   ---   
    þ SLMR 2.1a þ 0     
    * Origin: Fidonet Since 1991 bbs.docsnetservices.com (1:123/140)