Towertalk
[Top] [All Lists]

Re: [TowerTalk] Quad antenna matching which is best gamma matchor using

To: TOWERTALK@contesting.com
Subject: Re: [TowerTalk] Quad antenna matching which is best gamma matchor using coax...
From: "larryjspammenot@teleport.com" <larryj@teleport.com>
Reply-to: "larryjspammenot@teleport.com" <larryj@teleport.com>
Date: Wed, 16 Jan 2008 14:25:12 -0800 (GMT-08:00)
List-post: <mailto:towertalk@contesting.com>
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@aol.com
>Sent: Jan 16, 2008 11:33 AM
>To: TOWERTALK@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@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
>
>
>
>**************Start the year off right.  Easy ways to stay in shape.     
>http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489
>_______________________________________________
>
>
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk

_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>