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1. Topband: Open Wire Lines - Fact and Fiction (score: 1): Author: K8LV1@aol.com; Date: Sat, 27 Sep 2003 18:53:32 EDT; While recently reviewing some recent postings RE: open wire transmission lines, I found some controversial info to which I would like to add my 2 cents worth. Particularly intersting was the claim by; /archives//html/Topband/2003-09/msg00129.html (11,188 bytes)
2. Re: Topband: Open Wire Lines - Fact and Fiction (score: 1): Author: "K9AY" <k9ay@k9ay.com>; Date: Sun, 28 Sep 2003 01:40:10 -0500; This note piqued my interest and I reached the conclusion that the right answer lies closer to W8JI's claims than K8LV's calculations. To wit... K8LV -- Assuming a straightforward construction, my ca; /archives//html/Topband/2003-09/msg00130.html (10,215 bytes)
3. Re: Topband: Open Wire Lines - Fact and Fiction (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Sun, 28 Sep 2003 08:31:30 -0400; "I had a 1500-foot open wire line of number 8 solid copper spaced just over 2 inches, and I impedance matched the line at both ends through broadband transformers. I measured a power loss of 2% on 4; /archives//html/Topband/2003-09/msg00133.html (11,709 bytes)
4. Re: Topband: Open Wire Lines - Fact and Fiction (score: 1): Author: "K9AY" <k9ay@k9ay.com>; Date: Mon, 29 Sep 2003 12:54:17 -0500; My point was simply to show that the magnitude of this loss mechanism is miniscule... This tiny line loss due to radiation still exists if the line is twisted. The twist simply achieves cancellation; /archives//html/Topband/2003-09/msg00138.html (8,163 bytes)
5. Re: Topband: Open Wire Lines - Fact and Fiction (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Tue, 30 Sep 2003 01:34:47 +0100 (BST); I totally agree that line loss due to radiation is normally miniscule. I was heavily involved in the design of leaky feeder (radiating coax) cables when the world was rather younger. Even when cables; /archives//html/Topband/2003-09/msg00139.html (8,138 bytes)

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