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Total 62 documents matching your query.

21. Re: [TenTec] Tuner (score: 1): Author: "Robert Mcgraw" <rmcgraw@blomand.net>; Date: Mon, 8 Jul 2013 21:07:29 -0500 (CDT); EXCELLENT! Thanks Steve for posting. 73 Bob, K4TAX -- Disclosure: I am a Tentec Ambassador and compensated according to the Tentec Ambassador plan. I serve as a volunteer beta test person for the Omn; /archives//html/TenTec/2013-07/msg00136.html (10,566 bytes)
22. Re: [TenTec] Tuner (score: 1): Author: "Robert Mcgraw" <rmcgraw@blomand.net>; Date: Mon, 8 Jul 2013 21:16:00 -0500 (CDT); Reference my earlier post, my 80M dipole shows a 1:1 SWR at ~3800. With the 238 in BYPASS the SWR shown on the external meter is 4:1. Antenna is fed with ~75 ft of RG-213. The tuner will easily match; /archives//html/TenTec/2013-07/msg00137.html (11,168 bytes)
23. Re: [TenTec] Tuner (score: 1): Author: "Robert Mcgraw" <rmcgraw@blomand.net>; Date: Mon, 8 Jul 2013 21:20:38 -0500 (CDT); Absolutely. Balanced feeds are easy, low loss and very inexpensive. I have both coax fed and balanced fed. The balanced fed antenna line comes all the way to the tuner, through the attic, eve vent, d; /archives//html/TenTec/2013-07/msg00138.html (10,977 bytes)
24. Re: [TenTec] Tuner (score: 1): Author: Walt Stewart <kb4srn@yahoo.com>; Date: Mon, 8 Jul 2013 23:39:56 -0400; I like Stuart's idea of adding some length to the antenna. Don't know why I had forgotten that back in my novice days I had an 80 meter dipole inverted "v". Running an HW 101 that I got from N4NT. Wh; /archives//html/TenTec/2013-07/msg00140.html (10,636 bytes)
25. Re: [TenTec] Tuner (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Tue, 9 Jul 2013 08:06:49 +0200; BETTER YET: Cut the antenna for about 3550 kHz. Calculate how much shorter each leg will be for resonance at 3800. (abt. 4 feet). Mount the end insulator of each leg 4' from the end of the wire. Dril; /archives//html/TenTec/2013-07/msg00141.html (11,997 bytes)
26. Re: [TenTec] Tuner (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Mon, 08 Jul 2013 23:21:58 -0700; OCF antennas have inherently high imbalance, which makes their feedline part of the antenna, which makes them pick up lots of noise (and also puts RF in the shack). They are not easy to choke, becaus; /archives//html/TenTec/2013-07/msg00142.html (9,961 bytes)
27. Re: [TenTec] Tuner (score: 1): Author: Richards <jrichards@k8jhr.com>; Date: Tue, 09 Jul 2013 02:23:35 -0400; Yes, thanks for posting the Smith Chart... but that means I will have to buy my local Elmer-Electronic Guru another lunch to induce him to explain it to me! Easy stuff for some guys, but I played a d; /archives//html/TenTec/2013-07/msg00143.html (9,391 bytes)
28. Re: [TenTec] Tuner (score: 1): Author: Richards <jrichards@k8jhr.com>; Date: Tue, 09 Jul 2013 02:45:12 -0400; Really? Please explain. I ask because Rick DJ0IP and I have both spent considerable time researching and building various OCF dipoles to build multiple-band antennas which do not depend (or which dep; /archives//html/TenTec/2013-07/msg00144.html (11,183 bytes)
29. Re: [TenTec] Tuner (score: 1): Author: "Geoffrey S. Mendelson" <geoffreymendelson@gmail.com>; Date: Tue, 09 Jul 2013 10:10:15 +0300; I ask because Rick DJ0IP and I have both spent considerable time researching and building various OCF dipoles to build multiple-band antennas which do not depend (or which depend less) on a tuner or; /archives//html/TenTec/2013-07/msg00146.html (11,338 bytes)
30. Re: [TenTec] Tuner (score: 1): Author: Wade Staggs <tvman1954@gmail.com>; Date: Tue, 9 Jul 2013 02:11:01 -0500; Walt, My present antenna is a Flat Top at 134 feet. 67 feet on each leg. The 450 Ohm Ladder/Window Line is 78 feet long and comes to just outside my window. Then using a 1:1 Current Balun into a shor; /archives//html/TenTec/2013-07/msg00147.html (12,990 bytes)
31. Re: [TenTec] Tuner (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Tue, 9 Jul 2013 09:22:54 +0200; Jim, all things are relative. We don't all have room for a tower and beam like you do. In fact here in Europe, very few people do. Less than 1% of us. The OCF is about the only way to get a single wi; /archives//html/TenTec/2013-07/msg00148.html (11,271 bytes)
32. Re: [TenTec] Tuner (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Tue, 09 Jul 2013 00:35:06 -0700; The OCF is about the only way to get a single wire to work on many bands, unless you feed with openwire. It's not an "either-or." Look at the links on my qrz page to see what I did in Chicago, very s; /archives//html/TenTec/2013-07/msg00149.html (9,822 bytes)
33. Re: [TenTec] Tuner (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Tue, 9 Jul 2013 09:57:32 +0200; James, Jim is correct in EVERY point. Explaining all of that goes beyond the scope of an email or two. I'll send you several online links where you can read up on this. The only place I take exceptio; /archives//html/TenTec/2013-07/msg00150.html (13,847 bytes)
34. Re: [TenTec] Tuner (score: 1): Author: Steve Hunt <steve@karinya.net>; Date: Tue, 09 Jul 2013 11:17:58 +0100; Let's not perpetuate the myth that the G5RV was designed as a single band 20m antenna! "Since only an average size back garden was available it was not deemed worthwhile to construct a beam for the D; /archives//html/TenTec/2013-07/msg00151.html (10,386 bytes)
35. Re: [TenTec] Tuner (score: 1): Author: "Robert Mcgraw" <rmcgraw@blomand.net>; Date: Tue, 9 Jul 2013 07:09:09 -0500 (CDT); Here's a reference: http://en.wikipedia.org/wiki/G5RV_Antenna Now looking at the lengths, it is no more than a 1/2 wave antenna on 80M with a coax feed at the center. {51' + 51' + 34 = 136'} While th; /archives//html/TenTec/2013-07/msg00152.html (12,971 bytes)
36. Re: [TenTec] Tuner (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Tue, 09 Jul 2013 09:41:18 -0700; I posted this yesterday, with a screen grab of the SimSmith model, but the list rejected it. Here it is again, but without the screen grab. You'll have to imagine it. :) = = = = = = Here's the Power; /archives//html/TenTec/2013-07/msg00153.html (11,118 bytes)
37. Re: [TenTec] Tuner (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Tue, 09 Jul 2013 12:36:25 -0700; On 7/9/2013 12:57 AM, Rick - DJ0IP / NJ0IP wrote: Example: My current QTH. The landlord permitted me ONE single antenna. It must be as inconspicuous as possible. Normally under these limitations, I w; /archives//html/TenTec/2013-07/msg00154.html (12,262 bytes)
38. Re: [TenTec] Tuner (score: 1): Author: k6jek <k6jek@comcast.net>; Date: Tue, 9 Jul 2013 14:14:36 -0700; There is a whole sub-culture of people working with OCF's. There is a Yahoo group. There is a rather nice website by Serge Stroobrandt, ON4AA, with links to a lot of the literature and his own design; /archives//html/TenTec/2013-07/msg00159.html (13,062 bytes)
39. Re: [TenTec] Tuner (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Tue, 09 Jul 2013 15:55:15 -0700; What is actually needed is a common mode choke with a VERY high common mode Z, sufficiently high that the common mode current is VERY small. That VERY high Z is what keeps it from frying with high po; /archives//html/TenTec/2013-07/msg00163.html (9,982 bytes)
40. Re: [TenTec] Tuner (score: 1): Author: "R. Eric Sluder" <resluder@yahoo.com>; Date: Tue, 9 Jul 2013 17:28:22 -0700 (PDT); Man... I fell for the Carolina Windom marketing hype and its a windom with the 22' coax radiator that is then choked and fed with about 110' of coax to an Alpha Delta surge device that is connected t; /archives//html/TenTec/2013-07/msg00171.html (10,279 bytes)

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