[TowerTalk] Quad antenna matching which is best gamma match or using coax...

Cqtestk4xs at aol.com Cqtestk4xs at aol.com
Wed Jan 16 14:33:38 EST 2008


 
In a message dated 1/16/2008 7:28:14 P.M. Greenwich Standard Time,  
k2xx at swva.net writes:

I agree  with Norm and others that the quarter wave 72 ohm matching 
sections are  simple and effective for matching a typical two element 
quad.   Although most of my experiences are with four element quads, it 
is likely  that your six element quad has a feed impedance in the 
vicinity of 50 ohms  to start with.  My observation has been that when 
going to four  elements, the impedance generally drops to around 50  ohms.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I agree.  I have used quads/loops for years and have found using a 1/4  
wavelength of RG59 does the trick for 2 el arrays.  Direct feed with 50 ohm  for 
the four element and higher works great.  
 
Bill K4XS/KH7XS



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