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   AMATEUR_RADIO      Ham radio for when Armageddon strikes      2,531 messages   

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   Message 356 of 2,531   
   Holger Granholm to Tom Walker   
   Re: Resurrected   
   16 Apr 14 09:05:00   
   
   In a message dated 04-15-14, Tom Walker said to Holger Granholm:   
      
   Hi Tom,   
      
   HG>RW>I used to think that way when I was an experimenting CBer c1965, chasing   
   HG>RW>high SWR with coax lengths in intervals of 'wavelengths' and parts   
   HG>RW>thereof.   
      
   HG>TW>BUT it CAN be done. And while the point may be arguable I suspect   
   HG>TW>that WHEN YOU find the Perfect length it would be less loss than THE   
   HG>TW>BALUN   
      
   HG>The antenna tuner is a misnomer since what it actually is is an   
   HG>"Impedance matching network". Tuning the antenna has to be done   
   HG>at the antenna itself.   
      
   TW>This discussion is not about "Tuners" but about Balun Matching or   
   TW>1/2 wavelength Coax matching a dipole   
      
   Well then, where does this discussion of "coax lengths in intervals of   
   wavelengths...." come from.   
      
   Agreed that you can make a 1:4 balun by using a 1/2 wavelength coax to   
   both transform a higher impedance feedpoint to the coaxial feeder AND to   
   balance the unsymmetric coax feeder to a balanced feedpoint.   
      
   But this chat of cutting/adding lengths of coax to a feedline to find a   
   point where the SWR is low doesn't lead anywhere. As I stated the same   
   bad SWR still exists along the length of the coax feedline.   
      
   CU L8ER, Sam, OH0NC   
      
   aka Holger   
      
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