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141. Re: [TowerTalk] AM tower available, Ham or broadcast use (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Thu, 15 Sep 2005 16:38:28 +0000; Yes, i wondered how much of a deal breaker that would be. I think there are institutional liability concerns having to do with a bunch of guys showing up to take it down on their property. I have no; /archives//html/Towertalk/2005-09/msg00502.html (8,176 bytes)
142. Re: [TowerTalk] ground radial connection question (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Sun, 18 Sep 2005 23:48:54 +0000; You want all stainless hardware: for each lug or wire, have a nut, bolt, star washer, washer, locking washer. You have your copper plate in position. Put the screw in upside down so the head is on th; /archives//html/Towertalk/2005-09/msg00585.html (8,367 bytes)
143. Re: [TowerTalk] Whole house surge protectors (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Fri, 30 Sep 2005 03:28:27 +0000; the unit in use here is the Innovative Technology XT-40. response time is spec'ed at <= 1 nanosecond. circuit diagnostics are 2 LEDs, one per leg. it uses "encapsulated" MOVs. These are supposed to l; /archives//html/Towertalk/2005-09/msg00953.html (9,809 bytes)
144. [TowerTalk] re Elevated vertical (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Tue, 04 Oct 2005 15:53:40 +0000; I'd get the feedpoint a little higher up--around 15 to 20 feet if possible, and use a few more radials, maybe eight. yes, the length of them is more critical when they are elevated. They should be cu; /archives//html/Towertalk/2005-10/msg00110.html (8,055 bytes)
145. [TowerTalk] grounding (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Sun, 09 Oct 2005 01:16:53 +0000; this whole topic/conversation shows a pretty good reason to have professionals install subpanels. All the advice, recommendations involving SPG and so on sound great and i won't argue with them as th; /archives//html/Towertalk/2005-10/msg00355.html (9,376 bytes)
146. Re: [TowerTalk] grounding (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Sun, 09 Oct 2005 15:25:31 +0000; i'll try this again. my computer went nuts in the middle of writing this before, and i had to reboot it. Gary, let me make sure i understand this: <<<For example, it is not necessary to have the main; /archives//html/Towertalk/2005-10/msg00374.html (8,760 bytes)
147. Re: [TowerTalk] grounding (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Mon, 10 Oct 2005 00:53:17 +0000; okay Gary, i'm going to be the stupid one and say that there seems to be contradictions in what you advise. let's say i have my service entrance, its ground rod and panels, on one end of the basement; /archives//html/Towertalk/2005-10/msg00392.html (11,510 bytes)
148. Re: [TowerTalk] grounding (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Mon, 10 Oct 2005 11:39:45 +0000; Gary thanks very much--this clears a lot up. by luck i have done some of this already. 73, rob/k5uj Hi again Rob, Yes the ideal location for your coax lines to come in would be the same place that yo; /archives//html/Towertalk/2005-10/msg00399.html (16,322 bytes)
149. [TowerTalk] Roller inductor sources (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Tue, 18 Oct 2005 13:13:38 +0000; Two (be prepared to spend money) are: Surplus sales http://www.surplussales.com/Antennas/TransVarInductor.html and Cardwell Condenser http://www.cardwellcondenser.com/PAGES/md.html Something from one; /archives//html/Towertalk/2005-10/msg00645.html (8,085 bytes)
150. [TowerTalk] re Can Any Tower Handle Cat 5+ Hurricane? (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Wed, 19 Oct 2005 22:48:44 +0000; In Katrina some towers came down; some stayed up. (I'm talking about commercial towers.) It should be no surprise that it comes down to money. Kinetic energy is the square of the speed. As wind speed; /archives//html/Towertalk/2005-10/msg00672.html (8,025 bytes)
151. [TowerTalk] re 80 m. ant. suggestion (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Wed, 26 Oct 2005 14:00:39 +0000; U don't say if you want to work dx or ragchew. If the former, it seems to me that, unless I'm missing something about the way these things work, there should be a way to turn ur 160 m. shunt fed vert; /archives//html/Towertalk/2005-10/msg00814.html (7,779 bytes)
152. [TowerTalk] re Antenna in wet soil (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Tue, 01 Nov 2005 19:52:08 +0000; Wet ground improves ground conductivity but not so much that you can get by with a limited radial system. so you still need to put down a lot of radials if you want a good antenna, but you don't nece; /archives//html/Towertalk/2005-11/msg00014.html (8,508 bytes)
153. [TowerTalk] re Twinlead zepp (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Fri, 04 Nov 2005 14:51:17 +0000; center fed zepp: An antenna in which the feedpoint is at the center of the total length, which is usually a straight line but may be a vee or some other configuration. The key defining characteristic; /archives//html/Towertalk/2005-11/msg00162.html (7,537 bytes)
154. [TowerTalk] End fed Hertz (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Sun, 06 Nov 2005 19:28:20 +0000; <<<By the way, my very first antenna for 80 meters was a Fuchs antenna, also known as an end-fed Hertz. If you have the Radio Handbook 15th edition that antenna is on page 426, right next to the Zepp; /archives//html/Towertalk/2005-11/msg00225.html (7,512 bytes)
155. [TowerTalk] End fed Hertz (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Mon, 07 Nov 2005 01:11:00 +0000; same here bob; mine was not as high up--in fact, any antenna expert would have cringed as I didn't know what i was doing (some things have not changed hi hi) but i worked EA4BV on 40 with it once in; /archives//html/Towertalk/2005-11/msg00230.html (8,412 bytes)
156. Re: [TowerTalk] Radials (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Mon, 21 Nov 2005 15:12:22 +0000; Medium wave bc stations routinely rely on their radial system for lighting protection (among other things). A pair of electrodes with a roughly 1/2 inch air gap is a standard component on their tower; /archives//html/Towertalk/2005-11/msg00603.html (8,998 bytes)
157. [TowerTalk] re Station grounding question (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Thu, 24 Nov 2005 19:08:28 +0000; <<<Since most of us do not live in an enclosed metal shell/screen (i.e., a Faraday shield), ....>>> I always hoped the aluminum siding on my place would be good for something! the way it louses up in; /archives//html/Towertalk/2005-11/msg00678.html (7,421 bytes)
158. [TowerTalk] hf vertical (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Thu, 24 Nov 2005 19:36:46 +0000; I have a gap titan. I think it is an okay vertical on 40, 20, 17 and maybe 15. I can make contacts on 80 with it but have not made enough to say that band is okay because i use another antenna for 80; /archives//html/Towertalk/2005-11/msg00680.html (9,488 bytes)
159. [TowerTalk] 160m antenna tuner (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Fri, 25 Nov 2005 14:53:40 +0000; for unbalanced feedlines i have been using the ten tec L network model 238 they sell. It has worked okay for me on 160 at my power level which is at most around 1 kw. but it has become expensive. a n; /archives//html/Towertalk/2005-11/msg00693.html (7,666 bytes)
160. [TowerTalk] Inv. L support coupling to counterpoise (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Wed, 07 Dec 2005 14:54:11 +0000; I have a question for those of you who operate with inverted Ls or any other suspended monopole configuration held over a counterpose by a metal support structure. As you are probably aware, a signif; /archives//html/Towertalk/2005-12/msg00126.html (7,887 bytes)

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