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Total 24 documents matching your query.

1. Re: [TowerTalk] Fractal Antennas, Chip Cohen (N1IR) (score: 1)
Author: W1YW@aol.com
Date: Fri, 2 Mar 2012 15:02:27 -0500 (EST)
For some time I have been getting queries regarding a series of TT posts that have been prominently archived on google and contain incorrect information, much of it personally focused on ME. This pos
/archives//html/Towertalk/2012-03/msg00049.html (9,621 bytes)

2. Re: [TowerTalk] PBS documentary (score: 1)
Author: W1YW@aol.com
Date: Sat, 24 Mar 2012 20:27:30 -0400 (EDT)
You guys are feeding on each others' gross speculation--the same way you did it to me when I was on a PBS documentary in December 2010. You were totally wrong then, and I did not appreciate the abuse
/archives//html/Towertalk/2012-03/msg00365.html (8,189 bytes)

3. [TowerTalk] Fwd: Stange SWR/AttenuationpProblems, goes away when the sun come... (score: 1)
Author: W1YW@aol.com
Date: Sun, 1 Apr 2012 13:40:45 -0400 (EDT)
_______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk
/archives//html/Towertalk/2012-04/msg00009.html (7,057 bytes)

4. [TowerTalk] Strange SWR/AttenuationpProblems, goes away when the sun comes up (score: 1)
Author: W1YW@aol.com
Date: Sun, 1 Apr 2012 13:42:58 -0400 (EDT)
Uh oh, there's water/moisture afoot. Not a temp issue. Most likely happening at the connector interface(s) or at the matching system at the antenna feedpoint. Could be the traps, but they'd have to b
/archives//html/Towertalk/2012-04/msg00010.html (6,953 bytes)

5. Re: [TowerTalk] Long UHF Bulkhead Connectors (score: 1)
Author: W1YW@aol.com
Date: Mon, 9 Apr 2012 11:06:09 -0400 (EDT)
I have experienced arcing (dielectric breakdown) on one of these--manufacturer unknown, but assumed PRC origin. This was after 1 year in-line. About 500 watts at the time. I don't know how you avoid
/archives//html/Towertalk/2012-04/msg00134.html (7,269 bytes)

6. Re: [TowerTalk] Balun Recommendation (score: 1)
Author: W1YW@aol.com
Date: Sat, 14 Apr 2012 14:25:47 -0400 (EDT)
To Whom it May Concern: It is a pleasure to recommend CURRENT BALUN for the position so described. I have known and worked with CURRENT BALUN for more than 40 years and have always found CURRENT BALU
/archives//html/Towertalk/2012-04/msg00224.html (8,224 bytes)

7. Re: [TowerTalk] Antenna/Tower work safety - Lyme Disease safety (score: 1)
Author: W1YW@aol.com
Date: Tue, 24 Apr 2012 23:09:03 -0400 (EDT)
Lyme disease is endemic and epidemic in this part of Massachusetts, mostly because we let Bambi and his ilk run free to be a pest to you and me.Deer are the common vector. Some doctors are paranoid a
/archives//html/Towertalk/2012-04/msg00545.html (7,120 bytes)

8. Re: [TowerTalk] Antenna/Tower work safety - Lyme Disease safety (score: 1)
Author: W1YW@aol.com
Date: Wed, 25 Apr 2012 08:01:43 -0400 (EDT)
Well, I agree that tower and antenna work most certainly takes you into territory that these ticks inhabit--if you live in a Lyme disease area. In part, this because deer hang out on the paths that w
/archives//html/Towertalk/2012-04/msg00546.html (8,140 bytes)

9. Re: [TowerTalk] Antenna/Tower work safety - Lyme Disease safety (score: 1)
Author: W1YW@aol.com
Date: Wed, 25 Apr 2012 08:31:49 -0400 (EDT)
Good points Bob; you are correct that the mice are becoming a much bigger factor--blame the acorns: _http://www.wired.com/wiredscience/2012/03/acorns-mice-lyme/_ (http://www.wired.com/wiredscience/20
/archives//html/Towertalk/2012-04/msg00548.html (8,207 bytes)

10. Re: [TowerTalk] Fwd: Antenna/Tower work safety - Lyme Disease (score: 1)
Author: W1YW@aol.com
Date: Thu, 26 Apr 2012 18:57:52 -0400 (EDT)
Dick, We feel for ya buddy! Its a terrible disease that doctors don't take seriously. Do you do periodic doxycycline regimens? If not ask your doctor about the latest on that. Best to you OM! 73, Chi
/archives//html/Towertalk/2012-04/msg00583.html (6,904 bytes)

11. Re: [TowerTalk] Antenna modelling program (score: 1)
Author: W1YW@aol.com
Date: Thu, 3 May 2012 15:48:57 -0400 (EDT)
CST 73, Chip W1YW _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/l
/archives//html/Towertalk/2012-05/msg00026.html (6,786 bytes)

12. Re: [TowerTalk] Cloaking Towers, etc. (score: 1)
Author: W1YW@aol.com
Date: Fri, 22 Jun 2012 08:23:17 -0400 (EDT)
In order to circumvent the usual secondary and factually inaccurate comments(to be kind) I have seen in the past, I am posting this link directly. _http://www.southgatearc.org/news/june2012/ham_genui
/archives//html/Towertalk/2012-06/msg00204.html (7,116 bytes)

13. [TowerTalk] (no subject) (score: 1)
Author: w1yw@aol.com
Date: Thu, 28 Jun 2012 18:35:35 -0400 (EDT)
http://www.imov.com.cn/facebook.php?dried207.html _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http:
/archives//html/Towertalk/2012-06/msg00275.html (6,875 bytes)

14. Re: [TowerTalk] Effect of element shape was: Re: InnovAntennas contact info (score: 1)
Author: W1YW@aol.com
Date: Wed, 20 Mar 2013 09:06:18 -0400 (EDT)
Yeh, you can get better gain, bandwidth AND lower sidelobes. See 'Optimization of Wire Antennas', Landstorfer and Sacher, Wiley Interscience, 1985. The Innova designs use end-bends to shrink the proj
/archives//html/Towertalk/2013-03/msg00257.html (8,321 bytes)

15. Re: [TowerTalk] Effect of element shape was: Re: InnovAntennas contact info (score: 1)
Author: W1YW@aol.com
Date: Wed, 20 Mar 2013 13:22:21 -0400 (EDT)
Sorry Dave; the Moxon phasing is caused by the 1/8 wave separation. It is a close-spaced 2 el Yagi. The Hex is a Moxon with W bendbacks of the driven and parisitic. The virtue of the Moxon is that it
/archives//html/Towertalk/2013-03/msg00268.html (9,044 bytes)

16. Re: [TowerTalk] Effect of element shape was: Re: InnovAntennas contact info (score: 1)
Author: W1YW@aol.com
Date: Wed, 20 Mar 2013 13:28:37 -0400 (EDT)
I should add that the 'true' Moxon that you refer to is about 3/8 by 1/8 waves. I am used to the end loaded shorter versions here: 1/4 by 1/8. I have a fractal version that is 1/8 by 1/8 waves. 73, C
/archives//html/Towertalk/2013-03/msg00270.html (9,275 bytes)

17. Re: [TowerTalk] Effect of element shape was: Re: InnovAntennas contact info (score: 1)
Author: W1YW@aol.com
Date: Wed, 20 Mar 2013 14:55:45 -0400 (EDT)
About 6% bandwidth for 2:1 SWR, 5 dBi (measured), 25 dB F/B(measured). It uses conformal circuit boards, so I don't expect this will be of any real interest to hams. Light and portable though. I didn
/archives//html/Towertalk/2013-03/msg00281.html (10,688 bytes)

18. Re: [TowerTalk] Effect of element shape was: Re: InnovAntennas contact info (score: 1)
Author: W1YW@aol.com
Date: Wed, 20 Mar 2013 14:57:27 -0400 (EDT)
Yep. I am saying you are wrong. I confirm that I am saying that:-) Not a reflection nf you, but the antenna and how it works. 73, Chip W1YW In a message dated 3/20/2013 2:12:40 P.M. Eastern Daylight
/archives//html/Towertalk/2013-03/msg00282.html (9,644 bytes)

19. Re: [TowerTalk] Effect of element shape was: Re: InnovAntennas contact info (score: 1)
Author: W1YW@aol.com
Date: Wed, 20 Mar 2013 15:02:22 -0400 (EDT)
It's only 'critical' in the sense that at some point mutual coupling kicks in at the closed-spaced nearfield. Its not a mystery. That's the principle behind metamaterials. A Moxon is a folded two ele
/archives//html/Towertalk/2013-03/msg00283.html (9,708 bytes)

20. Re: [TowerTalk] Engineering Sanity Check (score: 1)
Author: W1YW@aol.com
Date: Mon, 1 Apr 2013 11:07:25 -0400 (EDT)
73, Ward N0AX Hi Ward, I certainly could do this for you, as I am retired from BU, where one of my jobs was as a professor of mechanical engineering; I taught the statics and dynamics courses over ma
/archives//html/Towertalk/2013-04/msg00005.html (7,605 bytes)


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