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21. Re: [TowerTalk] Open wire (score: 1): Author: Martin Ewing <martin.s.ewing@gmail.com>; Date: Mon, 28 Sep 2009 14:53:16 -0400; My vote would be #2. Coiling transmission line is fine as long as there is no coupling from turn to turn, ie. fine for coax. For open wire, if you coil tightly, each wire will "see" the wires in adja; /archives//html/Towertalk/2009-09/msg00503.html (8,618 bytes)
22. Re: [TowerTalk] Open wire (score: 1): Author: n8de@thepoint.net; Date: Mon, 28 Sep 2009 16:06:24 -0400; Assuming you use the antenna on bands other than 80m: How about option #4 ? 4. Reroute the open-wire feedline by pulling it aside with a nylon tether. Used that method for years with a 160m EDZ. Work; /archives//html/Towertalk/2009-09/msg00504.html (9,204 bytes)
23. Re: [TowerTalk] Open wire (score: 1): Author: "Bill Harris" <w7kxb@msn.com>; Date: Mon, 28 Sep 2009 12:32:24 -0700; Jim is right on...However, if you want to use the antenna on other bands you're best off using open line. YMMV KXBill _______________________________________________ _________________________________; /archives//html/Towertalk/2009-09/msg00505.html (9,064 bytes)
24. Re: [TowerTalk] Open wire (score: 1): Author: "Tommy" <aldermant@windstream.net>; Date: Mon, 28 Sep 2009 16:41:58 -0400; Ron, Opinions are just that. I totally disagree with both Jim and KXBill. I presently run some 600 foot of home made 4" spaced open wire to my wire 20m yagi, and also to both of my 40m EDZ antennas.; /archives//html/Towertalk/2009-09/msg00506.html (10,865 bytes)
25. Re: [TowerTalk] Open wire (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Mon, 28 Sep 2009 14:12:00 -0700; WHOA Tommy! We're not disageeeing at all -- my comment was about 100 ft of big coax to an 80M resonant dipole (0.6dB with 5:1 SWR), not 600 ft on 20M (3.3dB matched). Those are VERY different enginee; /archives//html/Towertalk/2009-09/msg00507.html (8,833 bytes)
26. Re: [TowerTalk] Open wire (score: 1): Author: "Tommy" <aldermant@windstream.net>; Date: Mon, 28 Sep 2009 18:42:34 -0400; Hi Jim, I believe the objection was to your comment: " Open wire line is highly over-rated.." to which hardly anyone agrees. There are trade-offs either way, coax or OWL, but to say OWL is highly ove; /archives//html/Towertalk/2009-09/msg00508.html (9,782 bytes)
27. Re: [TowerTalk] Open wire (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Mon, 28 Sep 2009 16:22:53 -0700; highly Because its virtues have been preached for so many years in the ARRL Handbook and Antenna Book. Science is not a matter of opinion, but of fact. Open wire line (and window line) are wildly ove; /archives//html/Towertalk/2009-09/msg00509.html (9,001 bytes)
28. Re: [TowerTalk] Open wire (score: 1): Author: Steve Hunt <steve@karinya.net>; Date: Tue, 29 Sep 2009 12:48:29 +0100; I'm not sure I would use the same language as Jim, but I *do* think there is widespread misunderstanding amongst Hams about the performance of "ladderline". There seems to be an ill-informed presumpt; /archives//html/Towertalk/2009-09/msg00513.html (10,448 bytes)
29. Re: [TowerTalk] Open wire (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Tue, 29 Sep 2009 09:02:14 -0400; Open wire transmission line can be the "near miracle" form of line if several electrical parameters are known. All too often, open or ladder line is deployed without regard to line length from ineff; /archives//html/Towertalk/2009-09/msg00514.html (11,266 bytes)
30. Re: [TowerTalk] Open wire (score: 1): Author: Martin Ewing <martin.s.ewing@gmail.com>; Date: Tue, 29 Sep 2009 09:56:45 -0400; References to W9CF and W5DXP info would be helpful. (Googling fails this morning.) 73 Martin AA6E _______________________________________________ _______________________________________________ Tower; /archives//html/Towertalk/2009-09/msg00515.html (12,801 bytes)
31. Re: [TowerTalk] Open Wire (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Tue, 29 Sep 2009 17:10:30 -0500; I think the sensitivity of balanced antenna systems to their environments is exaggerated. I have a 130 foot center fed dipole up 50 feet that I run the W7FG ladder line to. The ends dangle down aroun; /archives//html/Towertalk/2009-09/msg00518.html (10,437 bytes)
32. Re: [TowerTalk] Open Wire (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Tue, 29 Sep 2009 15:56:36 -0700; Unbalance has VERY little to do with TX performance (perhaps a dB or so pattern tilt). It's all about common mode on the line either receiving noise or radiating to cause RFI. Think of it this way --; /archives//html/Towertalk/2009-09/msg00519.html (8,514 bytes)
33. Re: [TowerTalk] Open wire (score: 1): Author: Richard Hill <rehill@ix.netcom.com>; Date: Tue, 29 Sep 2009 18:46:43 -0700; http://fermi.la.asu.edu/w9cf/ http://www.w5dxp.com/ Rich NU6T _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesti; /archives//html/Towertalk/2009-10/msg00001.html (13,059 bytes)

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