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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Ferrite\s+Balun\s+on\s+a\s+LPDA\?\s*$/: 11 ]

Total 11 documents matching your query.

1. [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Clint Talmadge" <unclebudd@bellsouth.net>
Date: Thu, 14 Jun 2007 12:00:01 -0500
I am close to putting my Tennadyne T-6 back up. When I took it down it had the prescribed Coax Balun on it and it showed it's age. For the last month or so I have had the antenna on a short perch in
/archives//html/Towertalk/2007-06/msg00419.html (8,018 bytes)

2. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: Steve Katz <stevek@jmr.com>
Date: Thu, 14 Jun 2007 09:52:45 -0800
I have a Tennadyne LPDA and have never tried the ferrite balun; however when servicing the antenna after it was up 4+ years I decided to replace the big, heavy & ugly RG213/U choke balun with one mad
/archives//html/Towertalk/2007-06/msg00420.html (9,130 bytes)

3. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Dan Hearn" <dhearn@air-pipe.com>
Date: Thu, 14 Jun 2007 10:44:09 -0700
Clint, our club web page www.sdxa.org has a link to a set of impedance measurements of bead and solenoid baluns at different frequencies. Click DX tips and you will be led to the measurements. 73, Da
/archives//html/Towertalk/2007-06/msg00421.html (8,804 bytes)

4. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 14 Jun 2007 15:24:02 -0400
Dan, thanks for that link. What are the specs of the Aztec sleeve balun? From the table it appears to use 73/77 mix ferrite which peaks at low HF. For 10-20M a 43 mix would improve the performance. A
/archives//html/Towertalk/2007-06/msg00426.html (11,026 bytes)

5. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Thu, 14 Jun 2007 16:32:57 -0400
Watch how you run the coax. If you use a balun and then tape the coax to the boom (which is hot) you totally defeat the reason for having a balun. If you tape the coax to the boom the balun needs to
/archives//html/Towertalk/2007-06/msg00432.html (8,745 bytes)

6. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: n7ka@comcast.net
Date: Thu, 14 Jun 2007 22:17:32 +0000
Guess I need a bit of clarification on a point or two. I am thinking monoband yagi, not LPDA for my questions. 1. You state "the coax needs to be routed down the boom tied to the shield." I take this
/archives//html/Towertalk/2007-06/msg00437.html (10,178 bytes)

7. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "R. Kevin Stover" <rkstover@mchsi.com>
Date: Thu, 14 Jun 2007 17:57:48 -0500
Big difference between LPDA and mono bander. With the LPDA the antenna boom is actually part of the feed system for the elements. If you install the choke/balun at the feed point, then tape the coax
/archives//html/Towertalk/2007-06/msg00439.html (12,152 bytes)

8. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Jim Chaggaris" <jimc@pwrone.com>
Date: Thu, 14 Jun 2007 18:17:51 -0500
" With the LPDA the antenna boom is actually part of the feed system for the elements." Not always the case with every LPDA design. Maybe with Tennadyne's LPDA design it is. My buddy Tim (N9IW) homeb
/archives//html/Towertalk/2007-06/msg00441.html (13,435 bytes)

9. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Thu, 14 Jun 2007 22:08:39 -0400
Arne, The Tennadyne log has two hot booms. Each boom is used as a conductor in a balanced transmission line. The elements are attached to those transmission line conductors which also serve as a boo
/archives//html/Towertalk/2007-06/msg00454.html (8,928 bytes)

10. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Fri, 15 Jun 2007 04:51:28 -0500
Tom, how would you recommend feeding/decoupling the feedline on a Tennadyne LP? Mark, N5OT _______________________________________________ _______________________________________________ TowerTalk ma
/archives//html/Towertalk/2007-06/msg00459.html (9,063 bytes)

11. Re: [TowerTalk] Ferrite Balun on a LPDA? (score: 1)
Author: "Gary Wescom" <wescom@wildblue.net>
Date: Mon, 2 Jul 2007 22:50:14 -0500
I'm not sure this question ever actually got answered. I'll give it a try. As Tom said, the Tennadyne twin booms act as an open 'wire' transmission line feeding the antenna elements. They are not at
/archives//html/Towertalk/2007-07/msg00119.html (8,010 bytes)


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