Search String: Display: Description: Sort:

Results:

References: [ +from:cw_de_n5op@sbcglobal.net: 177 ]

Total 177 documents matching your query.

61. Re: [TowerTalk] Tuner SWR won't stay down (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Thu, 1 Jan 2015 14:55:14 -0600
Even at low power, large currents can flow in certain components. This sounds like something is heating up and changing value. A giveaway would be if the match drifts faster at high power than at low
/archives//html/Towertalk/2015-01/msg00008.html (8,768 bytes)

62. Re: [TowerTalk] Fast, cheap, and or good... Pick two. (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sat, 03 Jan 2015 20:18:20 -0600
I have an HDBX48 that has been in service (by now) for nearly 30 years. Mine has been holding 18 sq feet plus 8 ft of 2 in mast for that length of time with measured winds up to 86 MPH. It's hell-for
/archives//html/Towertalk/2015-01/msg00059.html (10,900 bytes)

63. Re: [TowerTalk] New Proposed Texas Tower Regulation (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sat, 7 Feb 2015 12:30:54 -0600
This comes directly from wind observing towers for wind farm siting. They are all under 300' tell and do not subject to FAA obstruction marking requirements. These are erected essentially overnight a
/archives//html/Towertalk/2015-02/msg00122.html (12,246 bytes)

64. Re: [TowerTalk] [DILLO] Re: New Proposed Texas Tower Regulation (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sun, 08 Feb 2015 15:01:09 -0600
Roger, K8RI is a pilot and I'm a pilot (there are no doubt others on this list), though I'm a private pilot and don't fly commercially. I'm a research meteorologist at the National Severe Storms Labo
/archives//html/Towertalk/2015-02/msg00154.html (20,940 bytes)

65. Re: [TowerTalk] Radial Plate Designs (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Wed, 11 Feb 2015 16:14:17 -0600
That's interesting because it has not been my experience here in Oklahoma. I have seen aluminum wires corrode over a few years, but my solder joints (regular 60/40 stuff) have survived well. They beg
/archives//html/Towertalk/2015-02/msg00211.html (10,787 bytes)

66. Re: [TowerTalk] [Bulk] Re: SteppIR (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sat, 28 Feb 2015 16:04:52 -0600
Several have mentioned potential failure points for the SteppIR antennas. I haven't heard about many failures. In fact, I can't think of any. There are a fair number in us by now. How often are failu
/archives//html/Towertalk/2015-02/msg00536.html (19,371 bytes)

67. Re: [TowerTalk] Loss of wet RG-213 (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Tue, 31 Mar 2015 12:16:50 -0500
I'd be surprised if there are any definitive numbers on this because there are so many variables, not the least being the purity of the water that has entered the transmission lined. All I've ever he
/archives//html/Towertalk/2015-03/msg00277.html (9,231 bytes)

68. Re: [TowerTalk] M2 antenna problem and how M2 fixed it (score: 1)
Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>
Date: Wed, 15 Apr 2015 13:36:22 +0000 (UTC)
Maybe because the effective change in diameter due to beaded water drops is a smaller proportion of the total diameter using the 3/8" tubing vs the 1/8" rod, but that's just a guess. Kim N5OP Every s
/archives//html/Towertalk/2015-04/msg00391.html (10,166 bytes)

69. Re: [TowerTalk] antenna choices for K4XS (score: 1)
Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>
Date: Wed, 15 Apr 2015 13:40:26 +0000 (UTC)
OK, but... Has anyone actually measured the Q of any modern traps? I have a KLM-KT34A. Its linear loaded traps are supposed to have much less loss, but while I cotton to the idea, I've never seen any
/archives//html/Towertalk/2015-04/msg00393.html (13,890 bytes)

70. Re: [TowerTalk] Rotating tower guying question (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sun, 03 May 2015 21:43:47 -0500
FWIW, I ran the Chinese through a Google translator and it's essentially an out-of-office auto reply, unlike the last instance, when it appeared to be selling something. Kim N5OP My email program wil
/archives//html/Towertalk/2015-05/msg00009.html (10,618 bytes)

71. Re: [TowerTalk] Tower grounding connections and foundation (Shawn Donley) (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sat, 8 Aug 2015 17:15:06 -0500
I'm a researcher prologue that the National Severe Storms Lab in Norman, OK. There's a fair bit of lightning research done here, mainly on the physics of lightning. I know a few of the guys that do t
/archives//html/Towertalk/2015-08/msg00169.html (11,683 bytes)

72. Re: [TowerTalk] Median vs Average (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sun, 09 Aug 2015 10:39:36 -0500
Excellent points, Doug! That's exactly why Uman reported the median in his work. The median is a "resistant" statistic, but also nonlinear and so has qualities that are difficult to model. The distri
/archives//html/Towertalk/2015-08/msg00185.html (9,327 bytes)

73. Re: [TowerTalk] Static Discharge Porcupines - great for.... (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sun, 09 Aug 2015 13:24:56 -0500
Exactly! No one should care about the mean: they should care about what part of the distribution they want protection for and for what part of the distribution they'll take the risk. This boils down
/archives//html/Towertalk/2015-08/msg00190.html (11,677 bytes)

74. Re: [TowerTalk] weather station on tower? (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Tue, 1 Sep 2015 15:53:58 -0500
Most weather vanes require them to be level. Anemometers not so much; if not level, they will underestimate one of the two horizontal wind vector components. To see something significant, though, req
/archives//html/Towertalk/2015-09/msg00015.html (12,968 bytes)

75. Re: [TowerTalk] Omnidirectional antenna for domestic contests (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Tue, 6 Oct 2015 16:29:19 -0500
Which should work better for domestic contests :) Kim N5OP "People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith ________________________________
/archives//html/Towertalk/2015-10/msg00036.html (9,537 bytes)

76. Re: [TowerTalk] Omnidirectional antenna for domestic contests (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Wed, 7 Oct 2015 09:58:06 -0500
Interesting! I have some anecdotal experiences that support the "low inverted V is better for local contacts" school. I am mostly CW and tend to primarily chase DX and so have an F12 Sigma 80 OCF ver
/archives//html/Towertalk/2015-10/msg00048.html (13,072 bytes)

77. Re: [TowerTalk] Laws of Physics Repealed! (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Sun, 25 Oct 2015 13:33:51 -0500
My dad (W5JHJ, SK) used an AV640 for a number of years on 40 m when we had a schedule between OK and CO on 40 m every Sunday afternoon. It was up about 10 ft above the ground attached to the eave of
/archives//html/Towertalk/2015-10/msg00251.html (14,823 bytes)

78. Re: [TowerTalk] Force 12 rebuild (score: 1)
Author: Kim Elmore <cw_de_n5op@sbcglobal.net>
Date: Mon, 11 Jan 2016 14:22:49 -0600
I've had UV eat up the Nylon in nylock nuts. Theses were exposed to direct sunlight for several years and the nylon insert was simply gone. I think that if they were protected, they'd last indefinite
/archives//html/Towertalk/2016-01/msg00224.html (17,086 bytes)

79. Re: [TowerTalk] VOA tower demolition in HD (score: 1)
Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>
Date: Thu, 7 Apr 2016 14:15:26 +0000 (UTC)
Fortunately, I have no direct experience with tower failures but did see the results of s very tall TV tower failure. It was in (I think) 1987 or so. KTUL TV in Tulsa had the tallest tower at the tim
/archives//html/Towertalk/2016-04/msg00077.html (10,759 bytes)

80. Re: [TowerTalk] VOA tower demolition in HD (score: 1)
Author: Kimberly Elmore <cw_de_n5op@sbcglobal.net>
Date: Thu, 7 Apr 2016 14:19:02 +0000 (UTC)
The link didn't make it for some reason, so I'll try again: https://www.youtube.com/watch?v=EiXmpbXkoWY Kim N5OP From: Kimberly Elmore <cw_de_n5op@sbcglobal.net> To: "towertalk@contesting.com" <tower
/archives//html/Towertalk/2016-04/msg00078.html (11,243 bytes)


This search system is powered by Namazu