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Total 286 documents matching your query.

81. Re: [TowerTalk] Open wire line (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 1 Dec 2009 11:25:00 -0600
Despite what some wish to believe, it is easy to put up a balanced antenna and feed it with balanced feeder. You only need construct a 1/2 wave dipole fed at the center and get it reasonably high and
/archives//html/Towertalk/2009-12/msg00004.html (8,388 bytes)

82. Re: [TowerTalk] Aluminum tubing (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 18 Dec 2009 11:40:10 -0600
Try http://www.penningerradio.com 73 rob K5UJ _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://li
/archives//html/Towertalk/2009-12/msg00178.html (6,925 bytes)

83. Re: [TowerTalk] LP v. SteppIR (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 28 Jan 2010 13:03:55 -0600
When I was in the Army in the 1970s I was in the USA Communications Command. Back then we operated tactical RTTY circuits duplex with pairs of 2 - 30 MHz log periodics side by side up on tower pairs.
/archives//html/Towertalk/2010-01/msg00844.html (7,324 bytes)

84. Re: [TowerTalk] Bashing (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 1 Mar 2010 09:50:48 -0600
Tut Ward, you left out rig and manufacturer bashing, the two most popular bashing of all. Subcategories: JA gear bashing (usually by Ten Tec owners), Ten Tec bashing (by everyone else), Gap and Isotr
/archives//html/Towertalk/2010-03/msg00000.html (6,353 bytes)

85. Re: [TowerTalk] Telescoping TV Mast Installation questions (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 20 Apr 2010 12:25:37 -0500
I've put up a couple of 50 footers on the ground. Never again. Mine were Tessos made in Canada. They are maybe the cheapest way to gain height but in my opinion, any over 20 or 30 feet are really nas
/archives//html/Towertalk/2010-04/msg00565.html (8,984 bytes)

86. Re: [TowerTalk] Pushup masts (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 5 May 2010 12:42:42 -0500
If you can find the Tesso masts, I think they are of better quality. The 50 footers I have had holes drilled on both sides for the bolt to go through so the section above would rest with the weight d
/archives//html/Towertalk/2010-05/msg00126.html (9,149 bytes)

87. [TowerTalk] art and science of lightning protection book (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 29 May 2010 14:19:11 -0500
One of the things I do in my job is find things on the internet. It pays to know how to use the google suite of tools. Google Books often has partial text. Sometimes when that is all there is it is b
/archives//html/Towertalk/2010-05/msg00687.html (7,285 bytes)

88. Re: [TowerTalk] Antenna switching board ? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 16 Jun 2010 10:11:28 -0500
I don't think you understood the question. He just wants to have his hamshack in his garage. He doesn't want to remote control anything, but he wants to be able to use his rigs and antennas etc. in a
/archives//html/Towertalk/2010-06/msg00147.html (8,872 bytes)

89. Re: [TowerTalk] Shack ground (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 18 Jun 2010 12:02:21 -0500
Kip, keep your fingers crossed and hope you don't get hit with a positive strike. 9.5 out of 10 are negative. Positives are in a completely different league. An order of magnitude more intense in vol
/archives//html/Towertalk/2010-06/msg00205.html (9,153 bytes)

90. Re: [TowerTalk] Vertical antennas and lightning (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 2 Aug 2010 12:33:03 -0500
Good information here: http://www.radioworld.com/article/69646 With lighting you are dealing with probablility; not absolutes. You have to put your thinking and actions into two separate categories:
/archives//html/Towertalk/2010-08/msg00052.html (8,919 bytes)

91. Re: [TowerTalk] CC&R's (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 18 Aug 2010 11:05:15 -0500
If you find yourself dealing with informal complaints about a new tower it can help to employ some psychology in your actions. When a new antenna structure first goes up, the negativity about it is a
/archives//html/Towertalk/2010-08/msg00428.html (10,912 bytes)

92. [TowerTalk] 80-m. Inverted Vee vs. Dipole Performance, RLVZ <= (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 13 Sep 2010 10:51:11 -0500
You're never going to get the dx low angle you want with any inverted V or horizontal wire antenna on 80 meters if you are limited to 50 foot supports such as the tower you have. The problem with inv
/archives//html/Towertalk/2010-09/msg00288.html (8,834 bytes)

93. Re: [TowerTalk] Morning report Copper Theft, (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 23 Sep 2010 10:27:41 -0500
Probably not scrap value but rather cost of replacement parts and labor to repair damage, however that still sounds real high. The news media probably botched the damage figure. If the guy had gotten
/archives//html/Towertalk/2010-09/msg00616.html (7,370 bytes)

94. Re: [TowerTalk] SPG panels/feedthroughs etc (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 21 Oct 2010 13:57:40 -0500
It's not like copper is unobtainium. At at least one hamfest I go to a year, there's someone selling off long bars of copper that are drilled out, sometimes tapped, for use as SPGs, radial plates, wh
/archives//html/Towertalk/2010-10/msg00255.html (7,864 bytes)

95. Re: [TowerTalk] which type of coax? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 18 Nov 2010 12:34:24 -0600
yes as Dave wrote, we need to know your planned range of frequencies, needed length, and route above ground or below grade etc. Will the feedline need to be suspended in the air with no support from
/archives//html/Towertalk/2010-11/msg00287.html (8,621 bytes)

96. Re: [TowerTalk] OT ?? - Manual tuners (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 27 Nov 2010 14:11:54 -0600
The inductor generates heat; the caps do not. rob k5uj _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
/archives//html/Towertalk/2010-11/msg00435.html (7,944 bytes)

97. Re: [TowerTalk] Tuners (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sun, 28 Nov 2010 12:43:53 -0600
No, Rick is correct. And how many countries you have confirmed doesn't really mean anything other than you have worked (a lot of) DX. The "no. of countries," "I can work anyone I hear," "the current
/archives//html/Towertalk/2010-11/msg00462.html (11,469 bytes)

98. Re: [TowerTalk] Tuners (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 29 Nov 2010 17:30:39 -0600
Loops are over-rated unless they meet certain requirements. I tried a 75 m. 1 w.l. loop 30 feet high fed with ladder line and bal. tuner. I thougt it was great but I was comparing it to worse antenna
/archives//html/Towertalk/2010-11/msg00502.html (9,731 bytes)

99. Re: [TowerTalk] who's "right" (a tuner question), (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 7 Dec 2010 12:56:57 -0600
The MFJ analyzer is very sensitive. I've had false readings that turned out to be due to the presence of strong AC line noise. If you have a big enough antenna and the noise is strong enough, it will
/archives//html/Towertalk/2010-12/msg00167.html (7,470 bytes)

100. [TowerTalk] Fw: who's "right" (a tuner question) (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 8 Dec 2010 11:26:50 -0600
instrument. Actually it puts out around 20 milliwatts. It's fairly strong for a SWR analyzer and eats the 10 AA cells if you power it with them. On my dipole with the matching network giving it 50 j
/archives//html/Towertalk/2010-12/msg00209.html (7,614 bytes)


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