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Total 27 documents matching your query.

1. Topband: Cone of Silence (score: 1): Author: Dave NØRQ <n0rq-1@dfwair.net>; Date: Mon, 8 Dec 2003 12:08:29 -0600; When measuring & cutting wire to get Cone of Silence lengths for Beverages, do I assume rightly that the COS lengths recommended do NOT include the 15 to 20 meter sloping termination lengths at each; /archives//html/Topband/2003-12/msg00063.html (7,264 bytes)
2. Re: Topband: Cone of Silence (score: 1): Author: "jbattin" <jbattin@msn.com>; Date: Mon, 8 Dec 2003 19:51:56 -0600; I believe the length of the feed should be included. I am not personally convinced that there is really a "cone of silence", but why not use these lengths in case there is such a beast. My impression; /archives//html/Topband/2003-12/msg00070.html (8,557 bytes)
3. Re: Topband: Cone of Silence (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Mon, 8 Dec 2003 21:56:39 -0500; adjust they I'm not sure how important the ends are anyway. The amount of signal they contribute is very tiny, and the whole Beverage responds to vertical signals anyway. I do have one suggestion...; /archives//html/Topband/2003-12/msg00071.html (9,007 bytes)
4. Re: Topband: Cone of Silence (score: 1): Author: "Donald Chester" <k4kyv@hotmail.com>; Date: Tue, 09 Dec 2003 06:02:36 +0000; I am not personally convinced that there is really a "cone of silence", but why not use these lengths in case there is such a beast. My impression is that when we adjust the exact length of the bever; /archives//html/Topband/2003-12/msg00074.html (7,945 bytes)
5. Re: Topband: Cone of Silence (score: 1): Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>; Date: Tue, 9 Dec 2003 07:36:32 -0700; Don and Tom, My understanding of the operational characteristics of the Beverage antenna is that the use of sloping terminations eliminates the requirement of special efforts to cancel the reception; /archives//html/Topband/2003-12/msg00081.html (10,011 bytes)
6. Re: Topband: Cone of Silence (score: 1): Author: "K9AY" <k9ay@k9ay.com>; Date: Tue, 9 Dec 2003 16:25:48 -0600; Sloping the ends of a Beverage is one of many antenna ideas that seem plausible, but do not hold up under further analysis. I know Tom W8JI has explained this before, but I'll try again... It doesn't; /archives//html/Topband/2003-12/msg00085.html (8,935 bytes)
7. Re: Topband: Cone of Silence (score: 1): Author: "jbattin" <jbattin@msn.com>; Date: Tue, 9 Dec 2003 19:35:01 -0600; adjust signals determine I believe the pick-up in the vertical feeds is understated rather than overstated. This summer I experimented with a 580 foot beverage. The signals off the side were only dow; /archives//html/Topband/2003-12/msg00087.html (11,133 bytes)
8. Re: Topband: Cone of Silence (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Tue, 9 Dec 2003 22:39:34 -0500; the sides antenna Hi John and all, First I want to be clear I really respect John and all the work he does. The curiosity in me just makes me analyze things. Maybe we can think about this and come u; /archives//html/Topband/2003-12/msg00088.html (12,321 bytes)
9. Re: Topband: Cone of Silence (score: 1): Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>; Date: Wed, 10 Dec 2003 07:27:55 -0700; Gary, I understand also your view of the situation BUT, if this were true, then to my view entire Beverage antenna concept would be destroyed. Why? Because of the slope of a few degrees, both in the; /archives//html/Topband/2003-12/msg00092.html (17,358 bytes)
10. Re: Topband: Cone of Silence (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Wed, 10 Dec 2003 12:52:37 -0400; I sure enjoy the discussion on this topic. However, I would like to sheepishly, perhaps foolishly, ask if folding the short vertical Beverage termination down lead wire back and forth on itself with; /archives//html/Topband/2003-12/msg00094.html (9,020 bytes)
11. Re: Topband: Cone of Silence (score: 1): Author: "Dennis Sokol" <dasokol@hotmail.com>; Date: Wed, 10 Dec 2003 19:22:41 +0000; Herb: I asked Tom a similar question recently. That is, could you reduce vertical pickup by folding the vertical downlead back toward the feedpoint at a 45 degree angle. In other words, reversing the; /archives//html/Topband/2003-12/msg00095.html (7,939 bytes)
12. Re: Topband: Cone of Silence (score: 1): Author: Earl W Cunningham <k6se@juno.com>; Date: Wed, 10 Dec 2003 13:33:21 -0800; Regarding the discussion about either sloping the ends of the Beverage or dropping them straight down, my personal feeling is that if they slope, that makes the total length of the Beverage longer re; /archives//html/Topband/2003-12/msg00098.html (7,743 bytes)
13. Re: Topband: Cone of Silence (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Wed, 10 Dec 2003 16:44:57 -0500; of If the slope height change is small compared to the length of the slope it is unimportant, just like when the height of the vertical section is small compared to the length of the antenna the ver; /archives//html/Topband/2003-12/msg00100.html (8,810 bytes)
14. Re: Topband: Cone of Silence (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Wed, 10 Dec 2003 17:00:25 -0500; Unfortunately it cannot do anything except add some small amount of additional loss resistance. If it did, or if you find a way to do that, let me know. We can be rich becuase we will solve all type; /archives//html/Topband/2003-12/msg00101.html (9,924 bytes)
15. Topband: Cone of Silence (score: 1): Author: Bruce <k1fz@prexar.com>; Date: Wed, 10 Dec 2003 21:11:32 -0800; Anyone tried a string of resistors in series that equal the needed termination. ? No downlead on the termination end just a long resistor. If you were going to transmit with something like that it wo; /archives//html/Topband/2003-12/msg00104.html (8,986 bytes)
16. Re: Topband: Cone of Silence (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 11 Dec 2003 08:20:26 -0500; termination. This is like a loading coil problem or a string of beads on coax Bruce. Unless you have very low shunt capacitive reactance to ground (or to another large object around the resistor str; /archives//html/Topband/2003-12/msg00111.html (10,255 bytes)
17. RE: Topband: Cone of Silence (score: 1): Author: "Charles Hutton" <charlesh3@msn.com>; Date: Sun, 14 Dec 2003 20:19:47 -0800; As a small point, I would have to disagree with the "deepest null" statements. Given a perfect termination (with both resistive and reactive components) the null depth can be made infinite, assuming; /archives//html/Topband/2003-12/msg00129.html (8,795 bytes)
18. Topband: Cone of Silence (score: 1): Author: "D Andersen" <w7dddd@msn.com>; Date: Wed, 11 May 2005 09:56:29 -0700; Hello, I experimented with the cone of silence many years ago with a very low Beverage (1 inch high). To my amazement I could easily see when I had reached the correct length. The ZL and VK signals w; /archives//html/Topband/2005-05/msg00014.html (6,841 bytes)
19. Re: Topband: Cone of Silence (score: 1): Author: W2RU - Bud Hippisley <W2RU@frontiernet.net>; Date: Wed, 11 May 2005 20:17:26 +0000; Boy, my Beverages must be perfect COS length, then, because ZL and VK signals are virtually unreadable here at any time....:-) Don, you must be superman! By the time I could get from the chair to my; /archives//html/Topband/2005-05/msg00016.html (7,031 bytes)
20. Re: Topband: Cone of Silence (score: 1): Author: Cqtestk4xs@aol.com; Date: Wed, 11 May 2005 16:37:09 EDT; Could the cone of silence be found by using a local broadcast station around 1700kHz off the back instead of a DX station. Bill K4XS _______________________________________________ Topband mailing li; /archives//html/Topband/2005-05/msg00017.html (6,386 bytes)

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