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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Balun\s+question\s*$/: 37 ]

Total 37 documents matching your query.

1. [TowerTalk] BALUN QUESTION (score: 1)
Author: Greenacres113@aol.com
Date: Sat, 26 Mar 2005 11:41:16 EST
hi, i am getting ready to install a h/brew 2 el 12m yagi. i scrounged the reflector & split driven ele. off an old Mosley. I am thinking of h/brewing a balun. Arrl handbook gives apx size on a coiled
/archives//html/Towertalk/2005-03/msg00838.html (7,168 bytes)

2. Re: [TowerTalk] BALUN QUESTION (score: 1)
Author: "Tom Wunsch" <w4taw@tnni.net>
Date: Sat, 26 Mar 2005 11:53:02 -0500
Searc fot "Ugly Balun" and I think you will find this to be what you are referring . I am using two wound on 4" PVC forms and have been most pleased with the results om my C4D. 73 & GL w4taw --Origin
/archives//html/Towertalk/2005-03/msg00839.html (8,999 bytes)

3. Re: [TowerTalk] BALUN QUESTION (score: 1)
Author: ersmar@comcast.net
Date: Sat, 26 Mar 2005 17:08:05 +0000
Robert: I homebrewed a balun for my 3L Yagi. I'm not sure how to tell if it's doing any good, but I installed one 'cuz the manufacturer said I ought to. Unlike you I wound mine as a separate unit, wi
/archives//html/Towertalk/2005-03/msg00840.html (10,190 bytes)

4. [TowerTalk] Balun question (score: 1)
Author: K7LXC@aol.com
Date: Wed, 13 Jun 2007 20:22:48 EDT
Howdy, TowerTalkians -- I'm putting up a huge F12 6M beam and the B1 balun is AFU - the SO-239 on it pulled out. :-( The non-technical support advice from F12 was to wind an RF choke. Umm, okay. I'm
/archives//html/Towertalk/2007-06/msg00378.html (7,091 bytes)

5. Re: [TowerTalk] Balun question (score: 1)
Author: k3bu@optonline.net
Date: Thu, 14 Jun 2007 01:08:58 +0000 (GMT)
For mono-band antennas I prefer "bazooka" balun. It is a quarter wave stub wired per instructions in handbooks etc. Advantage is low loss, no ferites, it is a bal-un and also bandpass filter. Also w
/archives//html/Towertalk/2007-06/msg00379.html (7,822 bytes)

6. Re: [TowerTalk] Balun question (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Wed, 13 Jun 2007 20:54:32 -0700
At the risk of sounding like a broken record, I will point you to the tutorial on my website, supplemented by subsequent measurements of some coaxial chokes. http://audiosystemsgroup.com/RFI-Ham.pdf
/archives//html/Towertalk/2007-06/msg00386.html (8,914 bytes)

7. Re: [TowerTalk] Balun question (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Thu, 14 Jun 2007 07:40:17 -0400
At six meters I'd use a sleeve balun of beads (like 43 material several inches long along the cable) and then tape the cable to the boom after that point. You could simply space the coax an inch or
/archives//html/Towertalk/2007-06/msg00394.html (8,939 bytes)

8. Re: [TowerTalk] Balun question (score: 1)
Author: <donovanf@starpower.net>
Date: Thu, 14 Jun 2007 07:46:39 -0400 (EDT)
Jim, Thanks for providing the additional links showing the details of your measurements. ScalarChokeMeasurements1.pdf shows six traces, but only five are labelled. What is the unlabelled trace? Were
/archives//html/Towertalk/2007-06/msg00395.html (11,039 bytes)

9. Re: [TowerTalk] Balun question (score: 1)
Author: K7LXC@aol.com
Date: Thu, 14 Jun 2007 11:02:04 EDT
Steve, I have not taken apart my Force 12 B-1 baluns but the size and shape of mine suggest they are likely ferrite beads on a coax center. Perhaps RG-142 or one of the others with a Teflon dielectri
/archives//html/Towertalk/2007-06/msg00411.html (10,841 bytes)

10. Re: [TowerTalk] Balun question (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 14 Jun 2007 08:27:35 -0700
It's an optical illusion. There are only five curves -- the traces cross each other. I went back to the Quattro spreadsheet to confirm it. :) Hi Frank, Thanks for the questions. Lots of things have t
/archives//html/Towertalk/2007-06/msg00414.html (10,785 bytes)

11. Re: [TowerTalk] Balun question (score: 1)
Author: <donovanf@starpower.net>
Date: Thu, 14 Jun 2007 11:53:43 -0400 (EDT)
Jim, You're right, the orange trace on ScalarChokeMeasurements1.pdf is just a little difficult to correlate with its label. It'll be interesting to learn the experiences or test results from anyone w
/archives//html/Towertalk/2007-06/msg00416.html (10,994 bytes)

12. Re: [TowerTalk] Balun question (score: 1)
Author: David Gilbert <xdavid@cis-broadband.com>
Date: Thu, 14 Jun 2007 10:56:40 -0700
First of all, thanks for the excellent information provided in your tutorials and reflector postings. Per your comment below, I'm curious why I don't hear people using small diameter high-flexibility
/archives//html/Towertalk/2007-06/msg00422.html (9,574 bytes)

13. Re: [TowerTalk] Balun question (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 14 Jun 2007 11:14:12 -0700
Probably for the same reason that it isn't in genreal use in ham radio -- few hams (including me) know about it or know that it is available at low cost. I see no reason why it wouldn't be a good cho
/archives//html/Towertalk/2007-06/msg00423.html (8,327 bytes)

14. Re: [TowerTalk] Balun question (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 14 Jun 2007 15:07:59 -0400
"Ordinary" coax could mean anything from hard line to poor shielding coverage CB or RatShack cable. My apologies to RatShack if they have improved their offerings in the 10 or so years since I last l
/archives//html/Towertalk/2007-06/msg00425.html (10,550 bytes)

15. Re: [TowerTalk] Balun question (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 14 Jun 2007 12:38:54 -0700
Anything is possible, of course, but coax would have to be pretty awful for enough field from the differential signal to cause significant heating. You can convince yourself of this by winding some c
/archives//html/Towertalk/2007-06/msg00428.html (9,061 bytes)

16. Re: [TowerTalk] Balun question (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Thu, 14 Jun 2007 16:15:58 -0400
I can't imagine the need for multiple turns through a core on six meters. First, stray C can quickly become a problem at VHF...even on low VHF. The core would have to be small and that would mean sm
/archives//html/Towertalk/2007-06/msg00431.html (11,007 bytes)

17. Re: [TowerTalk] Balun question (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 14 Jun 2007 19:26:13 -0400
Heat isnt the issue as I mentioned in another reply. Im sure they are. Ive been using ferrites and powdered iron in both lab and home enviroments for around 40 years from DC to 75 gHz and never stop
/archives//html/Towertalk/2007-06/msg00442.html (10,765 bytes)

18. [TowerTalk] Balun Question (score: 1)
Author: Cycle-24 <aluminumtubing@gmail.com>
Date: Fri, 6 Aug 2010 11:12:07 -0500
Hello tower talk experts. I have been using air wound 1:1 coax baluns for years with great success on our antennas. They are reliable and have never failed in the heat of a contest. However, I've rec
/archives//html/Towertalk/2010-08/msg00152.html (7,685 bytes)

19. Re: [TowerTalk] Balun Question (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Fri, 06 Aug 2010 17:29:16 +0100
Kevin, I assume by "coax baluns" that you mean air-cored baluns. Air-cored baluns have a number of disadvantages: * They are "high-Q" and exhibit a high common-mode impedance over only a relatively n
/archives//html/Towertalk/2010-08/msg00153.html (9,223 bytes)

20. Re: [TowerTalk] Balun Question (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Fri, 06 Aug 2010 09:51:42 -0700
I use exclusively coaxial chokes wound on ferrite cores. See my Choke Cookbook and the associated discussion in http://audiosystemsgroup.com/RFI-Ham.pdf Yes, there are MAJOR differences. As Steve obs
/archives//html/Towertalk/2010-08/msg00154.html (7,724 bytes)


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