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Total 87 documents matching your query.

61. Re: [TowerTalk] NEC 5.0 ??? (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Wed, 10 Mar 2021 22:15:06 -0800
"Jerry Burke, the primary author of the antenna-modeling software NEC, died on February 14. He had been suffering from cancer. NEC (numerical electromagnetics code) evolved out of a program called BR
/archives//html/Towertalk/2021-03/msg00083.html (7,141 bytes)

62. Re: [TowerTalk] NEC 5.0 ??? (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Fri, 12 Mar 2021 10:58:53 -0800
Yes, as discussed in these three qrz.com threads: https://forums.qrz.com/index.php?threads/does-necv5-0-replace-eznec-4nec2.718750/ https://forums.qrz.com/index.php?threads/using-nec-5-output-data-wi
/archives//html/Towertalk/2021-03/msg00120.html (8,837 bytes)

63. [TowerTalk] New tool - toroidal ferrite core inductor calculator (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Mon, 14 Jun 2021 13:36:48 -0700
This new tool may be of interest to at least a few TowerTalk folks. Currently being discussed, with some sample illustrations, here: https://forums.qrz.com/index.php?threads/new-tool-toroidal-ferrite
/archives//html/Towertalk/2021-06/msg00059.html (7,461 bytes)

64. Re: [TowerTalk] New tool - toroidal ferrite core inductor calculator (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Wed, 16 Jun 2021 14:39:47 -0700
The TFCI Calculator is not usable with either OpenOffice or OfficeLibre. The calculator does much of its work by using Excel's Visual Basic for Applications macro language. Neither OpenOffice nor Off
/archives//html/Towertalk/2021-06/msg00069.html (10,029 bytes)

65. Re: [TowerTalk] New tool - toroidal ferrite core inductor calculator (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Thu, 17 Jun 2021 16:15:34 -0700
Jacek, SP3L, had some trouble posting so he asked me to relay his answers to a few of the questions posed by VE7RF. - Dan, AC6LA == Hello Guys, please forgive me if I do something wrong - I am using
/archives//html/Towertalk/2021-06/msg00073.html (11,779 bytes)

66. [TowerTalk] Important Information About EZNEC (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Wed, 7 Jul 2021 11:41:18 -0700
Just posted by Roy Lewallen, W7EL: https://eznec.com/retirement.htm https://forums.qrz.com/index.php?threads/important-information-about-eznec.771241/ Dan, AC6LA _____________________________________
/archives//html/Towertalk/2021-07/msg00004.html (6,786 bytes)

67. Re: [TowerTalk] Important Information About EZNEC (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Thu, 8 Jul 2021 15:32:42 -0700
At the moment there are no changes planned or needed for AutoEZ. I am fairly confident that AutoEZ will continue to work just fine with any future "free" versions of EZNEC. Roy and I work hard to ins
/archives//html/Towertalk/2021-07/msg00011.html (8,729 bytes)

68. Re: [TowerTalk] New tool - toroidal ferrite core inductor calculator (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Sat, 10 Jul 2021 15:56:40 -0700
Version 2.0 of the Toroidal Ferrite Core Inductor calculator is now available. Details with illustrations and a link to download are available here: https://forums.qrz.com/index.php?threads/new-tool-
/archives//html/Towertalk/2021-07/msg00014.html (6,998 bytes)

69. [TowerTalk] For NanoVNA users (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Mon, 12 Jul 2021 14:53:58 -0700
Ward Harriman, AE6TY, has just released version 18.3 of his SimSmith tool which can integrate use of the NanoVNA with use of SimSmith. For details see https://groups.io/g/SimSmith/message/2089 which
/archives//html/Towertalk/2021-07/msg00036.html (6,828 bytes)

70. Re: [TowerTalk] New tool - toroidal ferrite core inductor calculator (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Mon, 12 Jul 2021 15:07:52 -0700
Jim's Cookbook data assumes "worst case" for any given configuration, meaning that if you happen to use a core with "less than optimal" permeability characteristics your |Z| and R response will still
/archives//html/Towertalk/2021-07/msg00037.html (8,214 bytes)

71. Re: [TowerTalk] New tool - toroidal ferrite core inductor calculator (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Wed, 14 Jul 2021 01:07:05 -0700
Jim, I'm having trouble correlating some of the information in your 2018 Cookbook ( http://k9yc.com/2018Cookbook.pdf ) with some of your sample sweeps. I wonder if you could help me figure out where
/archives//html/Towertalk/2021-07/msg00075.html (9,657 bytes)

72. Re: [TowerTalk] Modeling Rohn 25G in K6STI's AO (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Sat, 23 Oct 2021 19:38:04 -0700
The image just below "Wire Geometry" on page https://ac6la.com/aecollection8.html shows the equivalent diameter for Rohn 25G according to: a) Section 9.1 of Leeson's "Physical Design of Yagi Antennas
/archives//html/Towertalk/2021-10/msg00170.html (9,111 bytes)

73. Re: [TowerTalk] Maybe OT (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Tue, 26 Oct 2021 01:07:38 -0700
K6OIK did a nice overview of antenna modeling at Pacifcon 2017: https://www.fars.k6ya.org/docs/K6OIK,_Antenna_Modeling_for_Radio_Amateurs,_ARRL_Pacificon,_Oct_2017.pdf More recently he did a detailed
/archives//html/Towertalk/2021-10/msg00194.html (7,550 bytes)

74. Re: [TowerTalk] Maybe OT (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Tue, 26 Oct 2021 11:36:57 -0700
Just a day or so ago update 6.0.35 was posted, see: https://www.eznec.com/ez60updates/index.html and https://www.eznec.com/Updates60.html I expect there will be at least one more before the "retireme
/archives//html/Towertalk/2021-10/msg00198.html (7,474 bytes)

75. [TowerTalk] EZNEC Pro/2+ and EZNEC Pro/4+ v. 7.0 (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Sat, 1 Jan 2022 09:55:48 -0800
For more information see: https://forums.qrz.com/index.php?threads/eznec-pro-2-and-eznec-pro-4-v-7-0.794085/ That QRZ thread might be a good location for questions since it is easy to post inline ima
/archives//html/Towertalk/2022-01/msg00002.html (6,812 bytes)

76. [TowerTalk] Now Available: EZNEC Pro+ v. 7.0; Corrected LLNL NEC-5; AutoEZ Maintenance Update (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Wed, 26 Jan 2022 18:42:14 -0800
For details, download links, and possibly questions and answers see: https://forums.qrz.com/index.php?threads/eznec-pro-2-and-eznec-pro-4-v-7-0.794085/page-4#post-6088392 Dan, AC6LA _________________
/archives//html/Towertalk/2022-01/msg00152.html (7,022 bytes)

77. [TowerTalk] NEC-5 engine second revision now available (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Fri, 13 May 2022 22:00:14 -0700
For details and illustrated examples of the problems that have been fixed see post #81 here: https://forums.qrz.com/index.php?threads/eznec-pro-2-and-eznec-pro-4-v-7-0.794085/page-6#post-6195110 Dan,
/archives//html/Towertalk/2022-05/msg00051.html (6,824 bytes)

78. Re: [TowerTalk] Taper conversions ... (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Fri, 29 Jul 2022 10:05:24 -0700
There might be some misunderstanding there. AutoEZ (https://ac6la.com/autoez.html) can be used with any version of Microsoft Excel from the last 20 years or so. I recently acquired a new laptop with
/archives//html/Towertalk/2022-07/msg00122.html (8,804 bytes)

79. Re: [TowerTalk] Radial Ends Buried??? (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Sat, 19 Nov 2022 23:35:11 -0800
That sounds like a neat experiment and AutoEZ's "Resonate" button makes it easy to automatically adjust the length of the radial pair (modeled as a dipole) for resonance as the height above ground is
/archives//html/Towertalk/2022-11/msg00136.html (9,992 bytes)

80. Re: [TowerTalk] 160m vertical and the number of radials (score: 1)
Author: Dan Maguire <danac6la@gmail.com>
Date: Fri, 2 Dec 2022 20:03:34 -0800
Marginally related. In the README.TXT for Brian's Ground Probe Calculator 3.20 you'll find this statement: "Wavelength in soil is much shorter than in air." With EZNEC, including the now free v. 7.0
/archives//html/Towertalk/2022-12/msg00043.html (10,332 bytes)


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