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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+OCF\s+antennas\s+evolution\s*$/: 78 ]

Total 78 documents matching your query.

61. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Stuart Rohre <rohre@arlut.utexas.edu>
Date: Fri, 12 Jul 2013 14:45:56 -0500
Wade and the group, Wade's antenna is very close to the 135 foot doublet, and that has been modeled and plotted by the late L. B. Cebik, whose collected antenna works are at www.cebik.com. He typical
/archives//html/TenTec/2013-07/msg00289.html (9,694 bytes)

62. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Wade Staggs <tvman1954@gmail.com>
Date: Fri, 12 Jul 2013 14:46:56 -0500
My MFJ-989C Tuner has the 1:1 Current Balun ...Of this I am sure. When locating the balun just outside my WINDOW...we went with the same. No problems HERE! All is working well..... for where a 4:1 ba
/archives//html/TenTec/2013-07/msg00290.html (17,068 bytes)

63. Re: [TenTec] OCF antennas evolution (score: 1)
Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
Date: Fri, 12 Jul 2013 22:23:01 +0200
Stuart, that is an excellent point (60% size = 90% efficiency) BECAUSE it is exactly the kind of antenna that works great in small places, but has a low impedance. If you feed it with openwire, the l
/archives//html/TenTec/2013-07/msg00291.html (11,069 bytes)

64. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Stuart Rohre <rohre@arlut.utexas.edu>
Date: Fri, 12 Jul 2013 15:29:50 -0500
To further amplify Rick's comments, an antenna that has gained popularity in USA in recent years, is a 40 odd foot high vertical for 80 and 160m work. One of our North TX hams published his versions
/archives//html/TenTec/2013-07/msg00292.html (9,548 bytes)

65. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Richards <jrichards@k8jhr.com>
Date: Fri, 12 Jul 2013 17:28:42 -0400
-- Sarcasm Button ON -- Well... I am all corn-fused. Last year, I researched the heck out of OCF antennas, reading many articles, web pages, ARRL Handbook, ARRL Antenna Book, and more. I discussed my
/archives//html/TenTec/2013-07/msg00293.html (14,555 bytes)

66. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Richards <jrichards@k8jhr.com>
Date: Fri, 12 Jul 2013 17:40:40 -0400
On 7/12/2013 4:29 PM, Stuart Rohre wrote: To further amplify Rick's comments, an antenna that has gained popularity in USA in recent years, is a 40 odd foot high vertical for 80 and 160m work. One of
/archives//html/TenTec/2013-07/msg00294.html (10,069 bytes)

67. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Fri, 12 Jul 2013 15:21:39 -0700
On 7/12/2013 2:40 PM, Richards wrote: On 7/12/2013 4:29 PM, Stuart Rohre wrote: To further amplify Rick's comments, an antenna that has gained popularity in USA in recent years, is a 40 odd foot high
/archives//html/TenTec/2013-07/msg00295.html (11,158 bytes)

68. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Stuart Rohre <rohre@arlut.utexas.edu>
Date: Fri, 12 Jul 2013 17:54:23 -0500
Folks, my sideline at work is being the only ex RFI/EMC specialist, so I still do a lot of the work I did full time for Southwest Research Institute's RFI group many years back. Whenever we were look
/archives//html/TenTec/2013-07/msg00296.html (11,795 bytes)

69. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Richards <jrichards@k8jhr.com>
Date: Fri, 12 Jul 2013 20:43:11 -0400
To understand the design concepts, study my 160M antenna presentation, on my website, dividing the physical dimensions by 2.. The ON4UN book also has lots of good stuff on verticals and radial system
/archives//html/TenTec/2013-07/msg00297.html (9,876 bytes)

70. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Richards <jrichards@k8jhr.com>
Date: Fri, 12 Jul 2013 23:13:07 -0400
Thanks Stuart. I'll drink to that! I'll have a little Gorge T. Stagg straight Ky bourbon... uncut, unfiltered, dumped 142.6 barrel-proof directly to the bottle... deep rusty brown, exceptionally thic
/archives//html/TenTec/2013-07/msg00298.html (11,516 bytes)

71. Re: [TenTec] OCF antennas evolution (score: 1)
Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
Date: Sat, 13 Jul 2013 06:25:11 +0200
James, I did not say you have feedline radiation. I said your feedline is contributing to the matching of your antenna on the 10m band and that you have excessive losses in your balun on that band. Y
/archives//html/TenTec/2013-07/msg00299.html (12,265 bytes)

72. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Richards <jrichards@k8jhr.com>
Date: Sat, 13 Jul 2013 01:30:30 -0400
I said your feedline is contributing to the matching of your antenna on the 10m band and that you have excessive losses in your balun on that band. I don't believe it... or I don't care. You pick. ;
/archives//html/TenTec/2013-07/msg00300.html (16,037 bytes)

73. Re: [TenTec] OCF antennas evolution (score: 1)
Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
Date: Sat, 13 Jul 2013 06:56:43 -0500
Mike et al; Frankly, I think we've whipped the general OCF topic to death. Personally I have thoroughly enjoyed the discussions and I've leaned a lot, mostly for my future antenna location. The resul
/archives//html/TenTec/2013-07/msg00301.html (13,281 bytes)

74. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Mike Bryce <prosolar@sssnet.com>
Date: Sat, 13 Jul 2013 09:29:57 -0400
Bob, I too agree it's time to kill this one. I have learned a lot. And I promise I'll get a 1:1 balun and a short hunk of coax for the connections to the 260 foot doublet I plan on putting up. Like I
/archives//html/TenTec/2013-07/msg00302.html (12,868 bytes)

75. Re: [TenTec] OCF antennas evolution (score: 1)
Author: "Gene" <gfstory@earthlink.net>
Date: Sat, 13 Jul 2013 06:48:59 -0700
That dot is absolutely, positively Red-Orange. Wait. No, it is Orange-Red. For sure Red. Darn it. On my 565 Orion it's just a black circle. Does that have any significant meaning? Oh man. Now you did
/archives//html/TenTec/2013-07/msg00303.html (11,984 bytes)

76. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Sat, 13 Jul 2013 17:06:49 +0100
I would expect the current "hot spots" to be every 22ft or so on 15m. You should slide the current probe at least 11ft to be sure to encompass one. Perhaps that's what you meant? Steve G3TXQ On 12/07
/archives//html/TenTec/2013-07/msg00305.html (11,396 bytes)

77. Re: [TenTec] OCF antennas evolution (score: 1)
Author: k6jek <k6jek@comcast.net>
Date: Sat, 13 Jul 2013 14:08:21 -0700
I guess I'm the only guy who would like to hear more about OCFs probably because I'm half considering putting one up again. Maybe this time armed with more knowledge, a better balun, and a couple of
/archives//html/TenTec/2013-07/msg00312.html (11,407 bytes)

78. Re: [TenTec] OCF antennas evolution (score: 1)
Author: Stuart Rohre <rohre@arlut.utexas.edu>
Date: Mon, 15 Jul 2013 14:45:54 -0500
Mike, Let all know how your Double Bazooka antennas work out when you get them in action! 73, Stuart K5KVH _______________________________________________ TenTec mailing list TenTec@contesting.com ht
/archives//html/TenTec/2013-07/msg00321.html (10,359 bytes)

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