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Total 11 documents matching your query.

1. [Antennaware] Phased Verticals (score: 1): Author: Brad Smith <decaturbrad@yahoo.com>; Date: Thu, 27 Sep 2007 09:14:18 -0700 (PDT); Since COMTEK is back-ordered at this time, I'm trying to phase two 75 meter verticals using the old coax trick. When fed directly with 50m coax, each antenna resonates at 3.8mHz fine, with good SWR.; /archives//html/Antennaware/2007-09/msg00003.html (6,814 bytes)
2. Re: [Antennaware] Phased Verticals (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Thu, 27 Sep 2007 10:13:11 -0700; Brad, You left out a few specs on your antenna system. Are they separated by 1/4 wavelength? Do you have 1/4 wavelength 75 ohm lines connected with a coax-T and an additional 1/4 wavelength of 50 ohm; /archives//html/Antennaware/2007-09/msg00004.html (8,870 bytes)
3. [Antennaware] Phased Verticals (score: 1): Author: Brad Smith <decaturbrad@yahoo.com>; Date: Fri, 28 Sep 2007 08:55:50 -0700 (PDT); The antennas are spaced 1/4 wavelength are are fed with equal length lines of 50 ohm coax and a 1/4 wave 50 ohm line is inserted in one line. Should I have used 75 ohm? 73, Brad -- Don't let your dr; /archives//html/Antennaware/2007-09/msg00005.html (7,145 bytes)
4. Re: [Antennaware] Phased Verticals (score: 1): Author: Tom Fletcher <tfletcher@gerberelec.com>; Date: Fri, 28 Sep 2007 12:00:18 -0400; Do you folks ever look for older style antenna wire? We have a bunch to get rid if you know of anyone that needs it. Just email me. Regards, Tom Tom Fletcher Director of Sales and Marketing Gerber El; /archives//html/Antennaware/2007-09/msg00006.html (9,084 bytes)
5. Re: [Antennaware] Phased Verticals (score: 1): Author: Bill Cotter <n4lg@qx.net>; Date: Fri, 28 Sep 2007 12:49:10 -0400; Another point I will add - If you intend to switch directions by moving the feedpoint to either side of the 90deg phasing line, be SURE to float the shields of the UNFED side of the phasing line. By; /archives//html/Antennaware/2007-09/msg00007.html (11,532 bytes)
6. Re: [Antennaware] Phased Verticals (score: 1): Author: "Steve Harrisonusa" <k0xp@dandy.net>; Date: Fri, 28 Sep 2007 13:06:24 -0400 (EDT); Ummm.... what do you mean by "older style"????? Thanks, Steve K0XP _______________________________________________ Antennaware mailing list Antennaware@contesting.com http://lists.contesting.com/mai; /archives//html/Antennaware/2007-09/msg00008.html (7,211 bytes)
7. Re: [Antennaware] Phased Verticals (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Fri, 28 Sep 2007 11:04:02 -0700; The idea of the 75 ohm lines is to raise what might be a 50 ohm feed to 100 ohms so you can parallel the two feeders and get somewhere near 50 ohms again. However, as the model shows, given the effec; /archives//html/Antennaware/2007-09/msg00009.html (8,954 bytes)
8. [Antennaware] phased verticals (score: 1): Author: "Karin Johnson" <karinann@tampabay.rr.com>; Date: Thu, 27 Oct 2016 12:31:24 -0400; I am trying to replicate a spreadsheet which computes the driving point impedances for a four square Using the formulas in ON4UN's "Low Band DXing". The results are not coming out per the example giv; /archives//html/Antennaware/2016-10/msg00000.html (6,388 bytes)
9. Re: [Antennaware] phased verticals (score: 1): Author: Guy Olinger K2AV <k2av.guy@gmail.com>; Date: Thu, 27 Oct 2016 14:31:21 -0400; Hi Karin, The lurking-in-the-shadows, most often ignored 1000 pound gorilla in the room, is that the driving impedances and performance of four squares depend hugely on the type, quality and specific; /archives//html/Antennaware/2016-10/msg00001.html (10,437 bytes)
10. [Antennaware] Phased Verticals (score: 1): Author: "Karin Johnson" <karinann@tampabay.rr.com>; Date: Tue, 1 Nov 2016 12:41:30 -0400; Well some progress has been made. I've ordered Low Band DXing to obtain the Complete software CD so I can be a bit more efficient in my modeling efforts. I did complete my own spreadsheet to compute; /archives//html/Antennaware/2016-11/msg00000.html (8,278 bytes)
11. Re: [Antennaware] Phased Verticals (score: 1): Author: "Karin Johnson" <karinann@tampabay.rr.com>; Date: Tue, 1 Nov 2016 14:56:29 -0400; Hi Don: At this point I am not trying to equate simulation with real world performance. Since I am not in the actual building phase just yet, the Only thing I am trying to accomplish is to understand; /archives//html/Antennaware/2016-11/msg00001.html (11,990 bytes)

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