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

Wed Jan 16 17:25:12 EST 2008

Are there any advantages to using a bead balun (like the stack of Palomar beads) right at the feedpoints for each band on a multiband quad?

-----Original Message-----
>From: Cqtestk4xs at aol.com
>Sent: Jan 16, 2008 11:33 AM
>To: TOWERTALK at contesting.com
>Subject: Re: [TowerTalk] Quad antenna matching which is best gamma match or	using coax...
>
> 
>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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