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21. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: <donovanf@starpower.net>; Date: Fri, 28 Mar 2008 17:37:00 -0400 (EDT); A photo of Yagi is located at: http://jplarc.ampr.org/calling/1996/feb/bigyagi2.jpg Modern Giant Yagi Excerpted from "Antennas and Propagation," June 1991 What may look like six separate HF yagi ante; /archives//html/Towertalk/2008-03/msg00532.html (11,517 bytes)
22. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: RICHARD SOLOMON <w1ksz@q.com>; Date: Fri, 28 Mar 2008 21:42:50 +0000; Clearly, these guys need a hobby. Just too much time and money on their hands. Something simple, like F1 racing !! 73, Dick, W1KSZ hly 0.5 x 5.0 x 1.0 wavelengths in the WARC-allocated 20-meter amate; /archives//html/Towertalk/2008-03/msg00533.html (12,125 bytes)
23. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: n8de@thepoint.net; Date: Fri, 28 Mar 2008 18:43:14 -0400; From that article: "Each of the six, 75mm-diameter boom segments measures 9M long." How does 6 x 9 = 100 meters? Don N8DE _______________________________________________ _____________________________; /archives//html/Towertalk/2008-03/msg00534.html (10,563 bytes)
24. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: n8de@thepoint.net; Date: Fri, 28 Mar 2008 18:51:41 -0400; Looking at the photo answered my question .. the booms are not continuous. DUH Don N8DE Quoting n8de@thepoint.net: _______________________________________________ ____________________________________; /archives//html/Towertalk/2008-03/msg00535.html (11,361 bytes)
25. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: <donovanf@starpower.net>; Date: Fri, 28 Mar 2008 18:53:52 -0400 (EDT); Hi Don, You forgot to include the gaps between each boom segment in your calculation: Six 9 meter boom segments -- plus five 9 meter gaps -- equals 99 meters 73! Frank W3LPL -- Original message -- __; /archives//html/Towertalk/2008-03/msg00536.html (10,919 bytes)
26. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Pstark" <pstark@suddenlink.net>; Date: Fri, 28 Mar 2008 17:57:04 -0500; -Segmented boom, space between segments. Pete K4OM --Original Message-- From: towertalk-bounces@contesting.com [mailto:towertalk-bounces@contesting.com]On Behalf Of n8de@thepoint.net Sent: Friday, Ma; /archives//html/Towertalk/2008-03/msg00537.html (11,704 bytes)
27. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Fri, 28 Mar 2008 19:03:49 -0400; Even the six, three element antennas spaced to give one long yagi on 20 might take the "longest" title, but not the largest. As the title page on the link below states, World's largest StepperIR *arr; /archives//html/Towertalk/2008-03/msg00539.html (11,549 bytes)
28. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 28 Mar 2008 16:08:14 -0700; A hobby like ham radio? Would that JPL ARC members had enough spare time these days to do such things, but Mars calls... We get excited having enough time to check into the weekly net on the repeater; /archives//html/Towertalk/2008-03/msg00540.html (9,043 bytes)
29. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Fri, 28 Mar 2008 19:08:46 -0400; Which doesn't quite figure either. 9 meters has 3 elements. That would mean the gap between antennas is too wide by 4.5 meters as the element spacing for 3 would be 9/2=4.5 unless I made a mistake in; /archives//html/Towertalk/2008-03/msg00541.html (12,353 bytes)
30. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: RICHARD SOLOMON <w1ksz@q.com>; Date: Fri, 28 Mar 2008 23:25:37 +0000; I would get excited if you called Mars and they replied !! Hey, Orson, you were right. 73, Dick, W1KSZ _______________________________________________ _______________________________________________; /archives//html/Towertalk/2008-03/msg00542.html (9,779 bytes)
31. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Alfred Frugoli" <alfred.frugoli@gmail.com>; Date: Fri, 28 Mar 2008 10:09:12 -0400; I'm not understanding the need for the elevation rotation. Is he planning on using this array for HF EME, or is it to be used for some other purpose? 73 de Al, KE1FO -- Visit my amateur radio contest; /archives//html/Towertalk/2008-03/msg00543.html (13,730 bytes)
32. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Edward Sylvester <navydude1962@yahoo.com>; Date: Fri, 28 Mar 2008 16:37:50 -0700 (PDT); Aside from having the benefit of a loud signal on HF, it's the scientific/educational aspect of the project that makes it interesting. My comment on the radio equipment was simply to emphasize that,; /archives//html/Towertalk/2008-03/msg00547.html (9,653 bytes)
33. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 28 Mar 2008 17:12:23 -0700; heck, we talk to Mars pretty much every day, and it responds. Granted, we installed the other end of the link.. sort of the ultimate DXpedition. And the rovers actually communicate on the 70cm band,; /archives//html/Towertalk/2008-03/msg00549.html (9,104 bytes)
34. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Robert Morris <robrk@nidhog.net>; Date: Fri, 28 Mar 2008 20:24:11 -0400; Mars, do it on 2 meters, every day...20 miles NW of Pittsburgh..look on a map. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ________; /archives//html/Towertalk/2008-03/msg00550.html (9,370 bytes)
35. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "bill rubin" <brubin2010@gmail.com>; Date: Fri, 28 Mar 2008 21:25:11 -0500; http://www.hb9dhg.ch/View_qsl.cfm?ID=307&Callsign=W6KPC&Back=1 _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contest; /archives//html/Towertalk/2008-03/msg00551.html (10,595 bytes)
36. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Tom Osborne" <w7why@verizon.net>; Date: Fri, 28 Mar 2008 21:55:32 -0700; Hi Pete, et al To me it looks very pretty, but a nightmare just waiting to happen! 73 Topm W7WHY _______________________________________________ _______________________________________________ TowerT; /archives//html/Towertalk/2008-03/msg00553.html (9,686 bytes)
37. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Gene Smar <ersmar@verizon.net>; Date: Sat, 29 Mar 2008 00:57:26 -0500 (CDT); I am planning on building a fold over and/or crank up mast, but I need to come up with a good lifting mechanism design. I have for the fold over and rotation, but I need something STRONG to go up 70; /archives//html/Towertalk/2008-03/msg00554.html (8,841 bytes)
38. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Sat, 29 Mar 2008 03:34:07 -0400; The strength is there, but it's neither steady or reliable enough. Besides the maintenance it far too high. <:-)) 73 Roger (K8RI) _______________________________________________ _____________________; /archives//html/Towertalk/2008-03/msg00555.html (9,566 bytes)
39. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "David Thompson" <thompson@mindspring.com>; Date: Sat, 29 Mar 2008 14:23:02 -0500; More big yagi's... WA6ZZK 20 meter long boom (100 foot. K4SKI had a 9 el 20 on a 100 foot boom in the early 70's. The boom was made from Rohn 25. Dunc Carter then W5IOU made several very long boom 8; /archives//html/Towertalk/2008-03/msg00573.html (9,851 bytes)
40. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Rob <ve6tr@telus.net>; Date: Sat, 29 Mar 2008 14:21:56 -0600; ... and then there is the 4 element full size 80m yagi.... (+ others on the website). http://alfaradio.ca/users/ve6jy/ve6jy-80m.html Rob VE6TR _______________________________________________ ________; /archives//html/Towertalk/2008-03/msg00577.html (10,567 bytes)

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