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References: [ +from:cebik@utkux.utcc.utk.edu: 367 ]

Total 367 documents matching your query.

321. [TowerTalk] Lightning Protection Components (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Thu, 10 Apr 1997 06:40:08 -0400 (EDT); On the advice to disconnect everything when lightning is imminent: I concur, with one addition: disconnect all antennas outside the home and run cables to a set of connectors well attached to a groun; /archives//html/Towertalk/1997-04/msg00280.html (9,218 bytes)
322. [TowerTalk] 80-75 meter wire beams (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Thu, 10 Apr 1997 06:46:25 -0400 (EDT); In the course of answering a question about fixed position wire beams for 80 and 75 meters, I did some rough modeling of an open sleeve coupled 80-75 meter combination 2-element (4 wire--one feed) Ya; /archives//html/Towertalk/1997-04/msg00281.html (7,609 bytes)
323. [TowerTalk] NEC-2/NEC-4 limitations (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Fri, 11 Apr 1997 09:17:43 -0400 (EDT); THose who have been on the list a while will remember that I expressed a question mark in my notes on the Tee match: were the results correct or were they an artifact of modeling--in other words, did; /archives//html/Towertalk/1997-04/msg00323.html (7,920 bytes)
324. [TowerTalk] New antenna design (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Wed, 16 Apr 1997 08:26:50 -0400 (EDT); Ed, Hate to say it, but what you have modeled is a fairly standard Extended Double Zepp with feedline. With the construction of the feedline you have used (+/- 0.285'), the feedpoint impedance at the; /archives//html/Towertalk/1997-04/msg00468.html (8,345 bytes)
325. [TowerTalk] EDZ beam update (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Wed, 16 Apr 1997 11:49:15 -0400 (EDT); I have added an interesting 2-element "gull-wing" EDZ beam design to the Web page on the subject. W1GQL's design has the advantage of removing most of the "ears" (side lobes) from the usual EDZ patte; /archives//html/Towertalk/1997-04/msg00477.html (7,309 bytes)
326. [TowerTalk] For modelers (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Fri, 25 Apr 1997 20:56:30 -0400 (EDT); The question of antenna modeling convergence testing has arisen several times in the past month, so I put some notes specifically on the subject at my website--too long to post. Basically, do not tru; /archives//html/Towertalk/1997-04/msg00799.html (8,401 bytes)
327. [TowerTalk] AntenneX (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Mon, 28 Apr 1997 09:28:27 -0400 (EDT); AntenneX, a popular antenna experimenter's magazine that closed its paper covers some time back, has now reopened them as an on-line subscription journal. They have a preview article to give you a ta; /archives//html/Towertalk/1997-04/msg00866.html (7,374 bytes)
328. [TowerTalk] Web download speeds (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Mon, 28 Apr 1997 12:07:20 -0400 (EDT); Download speeds on the Web are fastest between 4 and 8 AM Eastern time and slowest in the evening. However, even by 9 AM, when the east coast arrives at work, finishes its paper and coffee, reads its; /archives//html/Towertalk/1997-04/msg00869.html (8,259 bytes)
329. [TowerTalk] More antenna basics (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Tue, 29 Apr 1997 13:53:22 -0400 (EDT); In addition to the series of short comumns I have done for 10-10 News, I am also doing a series on basics for Low Down, the journal of the Colorado QRP Club. I have placed the first 3 in the new seri; /archives//html/Towertalk/1997-04/msg00920.html (7,581 bytes)
330. [TowerTalk] A little more on the EDZ (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Wed, 30 Apr 1997 16:48:39 -0400 (EDT); At my web site, therre are notes that update even the recent 10-10 News column on stacked EDZs, and I have just added a bit more information on a very narrow beamwidth co-linear array. How narrow is; /archives//html/Towertalk/1997-04/msg00944.html (7,507 bytes)
331. [TowerTalk] SVCs and Tees (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Mon, 3 Mar 1997 08:48:33 -0500 (EST); I have added the notes on self-contained vertically polarized wire antennas and on the Tee match to the collection at my web site, with some added illustrations and further data. -73- LB, W4RNL L. B.; /archives//html/Towertalk/1997-03/msg00028.html (7,196 bytes)
332. [TowerTalk] Deltas and gain (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Thu, 6 Mar 1997 11:30:36 -0500 (EST); A couple of notes regarding getting more punch from a delta and feeding it. First, there are various figures given for where to side-feed a delta loop to maximize vertically polarized radiation. The; /archives//html/Towertalk/1997-03/msg00069.html (11,621 bytes)
333. [TowerTalk] Ground and EDZs (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Sun, 9 Mar 1997 10:08:37 -0500 (EST); To my web site, I added some items from my notebooks on antenna-completion ground (as in 1/4 wl vertical monopoles) and on EDZs and their beam forms. Did not want to clutter the line where there were; /archives//html/Towertalk/1997-03/msg00101.html (7,321 bytes)
334. [TowerTalk] Butternut HF-5B Butterfly Beam (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Tue, 11 Mar 1997 07:03:38 -0500 (EST); I have used an HF5B for about 10 years at 35' and here is my experience with it. I sent a version of this to Gene, but after reading commentaries on the antenna, thought a different slant might be us; /archives//html/Towertalk/1997-03/msg00150.html (10,387 bytes)
335. [TowerTalk] Antenna Modeling Programs (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Thu, 13 Mar 1997 08:11:39 -0500 (EST); I have added a page to my site with links to some of the main web pages of antenna modeling software providers. I thought the basic info might interest members of the list, so I added the links visib; /archives//html/Towertalk/1997-03/msg00173.html (13,273 bytes)
336. [TowerTalk] Antenna Modeling Programs (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Thu, 13 Mar 1997 20:43:02 -0500 (EST); Don, To the best of my knowledge, at HF most sources hold the view that there is no significant difference between solid and stranded wires. Certain stranded wires are constructed in such a manner t; /archives//html/Towertalk/1997-03/msg00192.html (8,681 bytes)
337. [TowerTalk] SCV elevation patterns (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Fri, 14 Mar 1997 09:37:29 -0500 (EST); I have received a few questions on the elevation patterns of the self-contained vertical wire antenna family. I add some notes on the subject to my web page, along with some elevation plots to clarif; /archives//html/Towertalk/1997-03/msg00197.html (10,160 bytes)
338. [TowerTalk] Antenna Notes (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Mon, 17 Mar 1997 07:52:56 -0500 (EST); Since some interest has been shown in some of the notes I have placed at my site, I thought a list of what is there might be useful and save space, relative to the alternative of printing the text of; /archives//html/Towertalk/1997-03/msg00221.html (7,816 bytes)
339. [TowerTalk] Re: Again OWL,BIRDS & Antenna Video (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Tue, 18 Mar 1997 16:47:05 -0500 (EST); As a birdwatcher for the last decade, my reading suggests the following. 1. Although some few folks report success with dummy owls in keeping away birds, most folks report that birds know that the ow; /archives//html/Towertalk/1997-03/msg00251.html (8,992 bytes)
340. [TowerTalk] "Double" V-Beam Question (score: 1): Author: cebik@utkux.utcc.utk.edu (L. B. Cebik); Date: Wed, 19 Mar 1997 07:34:35 -0500 (EST); Jim, Your proposal for a set of Vees, 4 wl long (560' legs) at 40 meters, each 50 degrees spread, is intriguing. So I did a preliminary model of the 4 wires and tried various feeds at 7.15 MHz. Altho; /archives//html/Towertalk/1997-03/msg00269.html (10,715 bytes)

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