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  Msg # 2484 of 2553 on FAMATE12, Sunday 5-17-14, 7:26  
  From: TOM WALKER  
  To: ROY WITT  
  Subj: Heathkit DX-60B  
  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?  
    
    
  Directly fed elements.  
  A normal YAGI only has one directly fed element.  
    
  The advnatage of the LDPA is increased bandwidth but at the expense of  
  antenna Gain.  
  But it does make it possible for a single antenna to be used with wider  
  range of frequencies at a reasonable SWR  
    
  Create sells 2 "similar"(the ones I was adressing in my previous  
  posts) antennas one with a 105 to 1300 MHZ bandwidth and another with a  
  50 to 1300 Bandwidth with a claimed 2.0 SWR or less  
  ---  
   Ç SLMR 2.1a Ç Typo Tom strikes agaoin  
   * Origin: TECHWARE BBS - Since 1995 - www.techware.dynip.com  
  (1:102/401)  

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