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41. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Sat, 29 Mar 2008 16:52:47 -0400; I have heard that someone in Ohio (NO8D?) has an 80-meter yagi stack - never seen any pictures, though. 73, Pete N4ZR _______________________________________________ _________________________________; /archives//html/Towertalk/2008-03/msg00579.html (9,712 bytes)
42. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: W4wj@aol.com; Date: Sat, 29 Mar 2008 17:02:00 EDT; More big yagi's... OK... I have to mention the 5EL Full-sized 40M Yagi that Dale W6VSS (K6UA) built out on a 100 foot Rohn 25 boom.... "Beam me up Scotty!!" 73, Don, W4WJ **Create a Home Theater Like; /archives//html/Towertalk/2008-03/msg00580.html (8,526 bytes)
43. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Sat, 29 Mar 2008 14:25:18 -0700; The boom on this is only 76 feet. That would be 19 feet on 20 meters. This seems way too short to justify 4 elements. In fact you can do pretty well with 3 elements up to a 26 ft boom on 20m. IMHO, t; /archives//html/Towertalk/2008-03/msg00584.html (11,624 bytes)
44. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Gedas" <w8bya@mchsi.com>; Date: Sat, 29 Mar 2008 17:28:06 -0400; My good friend Chuck, K9RM (EX k9rms) who lives near Indy has a 25 element wire yagi for 40m with a total boom length of around 1000'. I live north of him about 80 miles or so. A year or two ago Chuc; /archives//html/Towertalk/2008-03/msg00585.html (10,178 bytes)
45. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Billy Cox" <aa4nu@ix.netcom.com>; Date: Sat, 29 Mar 2008 16:52:42 -0500; Or, did he do this for bandwidth/matching reasons just as K3LR/W3LPL/etc do with their 4L40m? Remember also that a ~ 0.25 - 0.30w boom, per my old W2PV notes, can have a naturally higher F/B ... Just; /archives//html/Towertalk/2008-03/msg00586.html (12,576 bytes)
46. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: <donovanf@starpower.net>; Date: Sat, 29 Mar 2008 18:33:54 -0400 (EDT); Billy is correct, VE6JY's antenna is an OWA Yagi, using the classic two element OWA driver system. One element is a driven element and the second element is a tightly coupled parasitic element whose; /archives//html/Towertalk/2008-03/msg00587.html (12,856 bytes)
47. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Al Williams" <alwilliams@olywa.net>; Date: Sat, 29 Mar 2008 16:34:42 -0700; Out of curiosity I added 9 directors to a 4 el yagi model in EZNEC. Same spacing and length as the two already existing directors. The gain increased with each added until the 9th element was added a; /archives//html/Towertalk/2008-03/msg00588.html (9,674 bytes)
48. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Don Moman VE6JY" <ve6jy.1@gmail.com>; Date: Sun, 30 Mar 2008 02:09:11 +0000; As others have correctly stated, it is an OWA style design so it is closer to a 3 element on 76 feet, which is a bit short still, but in in the 9 1/2 years that it has been up, it has been a good per; /archives//html/Towertalk/2008-03/msg00601.html (11,535 bytes)
49. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Sat, 29 Mar 2008 20:43:48 -0700 (PDT); Thanks for clarifying that. It still seems to me it would be easier to switch in reactances at the center of the driven element that it would be to have an additional element. A lot of the 80M Yagi's; /archives//html/Towertalk/2008-03/msg00602.html (13,297 bytes)
50. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 30 Mar 2008 08:47:58 +0200; Yes NO8D. http://www.xxtowers.com/customers/NO8D_photos.php 73 SM2EKM _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@; /archives//html/Towertalk/2008-03/msg00609.html (9,396 bytes)
51. Re: [TowerTalk] worlds biggest yagi (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Mon, 31 Mar 2008 11:56:33 -0400; Gedas, just curious. Is he using trees to support his wire elements? If so, getting the wires all in the same plane and reasonably parallel has to be a major problem. He must be a very determined and; /archives//html/Towertalk/2008-03/msg00645.html (11,421 bytes)

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