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Total 182 documents matching your query.

1. [TowerTalk] Inspecting tower sections (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Wed, 8 Dec 1999 16:04:46 -0700; Hi Guys, See my comments below. To: <towertalk@contesting.com> Both the anti-oxidants and the corrosion inhibitors _are_ the grease. The function of the grease is to keep the atmospheric oxygen and a; /archives//html/Towertalk/1999-12/msg00171.html (11,533 bytes)
2. [TowerTalk] Three Lightning Protection Clarifications Please? (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Thu, 9 Dec 1999 14:28:32 -0700; Hi Dave, To: <towertalk@contesting.com> I have four comments here. First, if the ground has been measured (I presume this is what he meant by "megged out".) and found to be of adequately low impedanc; /archives//html/Towertalk/1999-12/msg00205.html (13,204 bytes)
3. [TowerTalk] Three Lightning Protection Clarifications Please? (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Thu, 9 Dec 1999 17:23:51 -0700; Hi Bob, I have no serious disagreement with your post. But I think it points up the necessity for me to clarify some of my statements. And I do have a comment or two. See below. 73, Eric N7CL To: <to; /archives//html/Towertalk/1999-12/msg00215.html (18,902 bytes)
4. [TowerTalk] Poor Verticals... (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Wed, 3 Nov 1999 08:00:01 -0700; Notwithstanding the characteristics of any particular vertical (like the R7000), that old saw should actually be rephrased. "Verticals near earth radiate and receive poorly in all directions when not; /archives//html/Towertalk/1999-11/msg00052.html (8,618 bytes)
5. [TowerTalk] RF Take-Off Angle (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Mon, 8 Nov 1999 08:00:36 -0700; Hi Dave, To: <towertalk@contesting.com> Well, you sure put that vertical in the right place! From that mount, its efficiency will be as high as it can be. You won't be loosing much to near field loss; /archives//html/Towertalk/1999-11/msg00142.html (8,897 bytes)
6. [TowerTalk] Exothermic Welding? (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Sun, 14 Nov 1999 12:37:40 -0700; Hi All, A lot depends on exactly _where_ this connection must be made. There is absolutely nothing wrong with connections between dissimilar metals if there is no possibility that both sides of the c; /archives//html/Towertalk/1999-11/msg00274.html (9,816 bytes)
7. [TowerTalk] Open Wire (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Tue, 16 Nov 1999 16:15:51 -0700; Hi Yall, There is not much reason to be guessing about tuner losses. Of course it is possible to design a pathologically poor tuner. And it is possible to misapply a well designed unit. But a correct; /archives//html/Towertalk/1999-11/msg00339.html (11,134 bytes)
8. [TowerTalk] More STOPPING RUST (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Sat, 20 Nov 1999 09:54:10 -0700; One caveat for use of this stuff to prevent rusting of tower and guy components is that it is UV sensitive. So it should probably be overpainted with a fairly opaque paint after application. 73, Eric; /archives//html/Towertalk/1999-11/msg00414.html (7,506 bytes)
9. [TowerTalk] Steel Ground Rods (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Mon, 22 Nov 1999 11:28:08 -0700; To: <towertalk@contesting.com> SNIP... Or _maybe_ they are not cutting their own throat but they are having the standards organization do their marketing for them. If the standard makes their protec; /archives//html/Towertalk/1999-11/msg00447.html (8,246 bytes)
10. [TowerTalk] Yagi versus Log Periodic (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Sat, 2 Oct 1999 11:40:29 -0700; Hi Roy, See my comments below. To: <towertalk@contesting.com> Snip... (discussion of gain possibilities for various antenna configurations) The fallacy in your comparison here is that you are compari; /archives//html/Towertalk/1999-10/msg00024.html (9,762 bytes)
11. [TowerTalk] Question About Safety Routing of Wires? (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Sun, 3 Oct 1999 10:48:15 -0700; Hi David, I had a bit of trouble deciphering the drawing after it had gone through some email format mangling. But I _think_ I understand your situation now. To: <towertalk@contesting.com> Snip... (A; /archives//html/Towertalk/1999-10/msg00041.html (11,732 bytes)
12. [TowerTalk] yagis vs. log periodics (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Sun, 3 Oct 1999 11:50:09 -0700; Hi Mike, To: <towertalk@contesting.com> Ditto... There is a class of Yagi which it is valid to compare to the LPDA. These are the parasitic arrays which attempt to cover 3 to 5 bands on a single boom; /archives//html/Towertalk/1999-10/msg00042.html (10,762 bytes)
13. [TowerTalk] Yagi versus Log Periodic (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Sun, 3 Oct 1999 12:15:07 -0700; To: <towertalk@contesting.com> Ok, so your constraint was size. I was just curious. It is generally not cost effective to attempt to design for survival of sustained hurricane force winds. Here is w; /archives//html/Towertalk/1999-10/msg00044.html (9,355 bytes)
14. [TowerTalk] 'Tuning' a KLM LPDA (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Fri, 8 Oct 1999 16:56:01 -0700; Hi Tom, Tell your friend to forget it. He will just screw something else up. LPDAs do not operate in any sense like most hams are used to thinking about. In particular, it is very important that all; /archives//html/Towertalk/1999-10/msg00218.html (9,735 bytes)
15. [TowerTalk] newbie, Installing a 80' crank up (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Mon, 11 Oct 1999 08:34:05 -0700; Hi Brian, I don't think you are asking for trouble per se. But you are asking for a requirement that you exercise somewhat more care in the design of the ground system. Only you know what the value a; /archives//html/Towertalk/1999-10/msg00276.html (10,869 bytes)
16. [TowerTalk] GAP Titan (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Mon, 11 Oct 1999 13:11:54 -0700; Hi jim, I knew that If I waited long enough someone would post the truth about antennas operated near (closer than 1/2 wavelength or so) earth. Note that this applies to ANY ANTENNA near earth regard; /archives//html/Towertalk/1999-10/msg00290.html (11,207 bytes)
17. [TowerTalk] GAP Titan (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Mon, 11 Oct 1999 14:05:12 -0700; Hi Phil, I could not agree with you more. But I think I can offer a more useable guideline to use to determine "how much" screen is really necessary when the antenna is mounted as close as possible t; /archives//html/Towertalk/1999-10/msg00296.html (15,231 bytes)
18. [TowerTalk] GAP Titan (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Tue, 12 Oct 1999 11:13:43 -0700; Hi Bob, The GEM, coke breeze, and magnesium sulphate are all bulk effect measures designed to permit more efficient _connection_ of an earth terminal to earth. While they all modify the conductivity; /archives//html/Towertalk/1999-10/msg00332.html (9,626 bytes)
19. [TowerTalk] Military Grounding Handbook (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Wed, 13 Oct 1999 14:38:43 -0700; Hi Y'all, I initially had the firewall problem from work. I solved it by following the instructions on the site for obtaining a registration number. Once you get this number assigned (free), you can; /archives//html/Towertalk/1999-10/msg00386.html (9,467 bytes)
20. [TowerTalk] MIL-HDBK-419 (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Wed, 13 Oct 1999 18:17:02 -0700; Hi Y'all, I have seen the reflector traffic from folks having trouble getting the document from the DODSSP site. And I have had a few direct requests for info about how to get the handbook. So I revi; /archives//html/Towertalk/1999-10/msg00392.html (10,495 bytes)

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