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101. Re: [TowerTalk] Mystery tribander (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Fri, 29 Apr 2005 04:24:05 -0400; Oops! I added one too many elements, but I believe most of the manufacturers had the same sort of arrangement with two trapped elements and a seperate reflector for 10. ______________________________; /archives//html/Towertalk/2005-04/msg00767.html (11,305 bytes)
102. Re: [TowerTalk] Mystery Tribander 2 (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Fri, 29 Apr 2005 14:53:09 -0400; A reflector with two traps (one on each side) is consistent with the seperate 10 meter reflector, but that three traps started me thinking last night as well. I don't know of any older antennas that; /archives//html/Towertalk/2005-04/msg00772.html (12,437 bytes)
103. Re: [TowerTalk] GUY WIRE TENSION (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Sat, 30 Apr 2005 21:13:31 -0400; As others have already said, it depends on the size of the guy wire. The size of the guy wire depends on the tower. On a 45G I use 4400 and 6600# test Philystrand . Use the ROHN tower guide to determ; /archives//html/Towertalk/2005-04/msg00812.html (9,844 bytes)
104. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Sat, 30 Apr 2005 21:29:29 -0400; Why not just use one of the Kevlar cables such as Phylistran, or the one AES sells just called Kevlar guy line? Nothing is perfect, but so far I like the light weight and easy handeling of the Kevlar; /archives//html/Towertalk/2005-04/msg00814.html (8,720 bytes)
105. Re: [TowerTalk] ROHN LOAD TABLES (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Sat, 30 Apr 2005 22:31:12 -0400; I think http://www.rohnnet.com/ROHNNET/rohnnet2004/html2004/index.html will do it for you. It may go to the old address before forwarding. It I think it has everything you'll want to ask. Roger Halst; /archives//html/Towertalk/2005-04/msg00817.html (8,569 bytes)
106. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Sun, 1 May 2005 01:31:52 -0400; I purchased the Phillystran 3 or 4 years ago (give or take) and it wasn't that expensive. 50 some cents a foot for the 4400# test and I don't seem to find the invoice for the 6600#, but as I recall i; /archives//html/Towertalk/2005-05/msg00000.html (11,699 bytes)
107. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Sun, 1 May 2005 19:01:06 -0400; <snip> Having spent a lot of time with fiberglass the last few years while building an airplane. This is an aeroplane capable of aerobatics and I've flown one close to 350 MPH while pulling 3 1/2 Gs; /archives//html/Towertalk/2005-05/msg00016.html (13,933 bytes)
108. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Mon, 2 May 2005 19:20:37 -0400; Agreed The summer sun on an unventelated, metal shed may create temperatures beyong the those necessary for softening the resin (Vinyl Ester, or epoxy). A fiberglass airplane with a colored paint jo; /archives//html/Towertalk/2005-05/msg00034.html (11,592 bytes)
109. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Mon, 2 May 2005 21:17:39 -0400; Any dark color should be avoided with fiberglass and resin (epoxy, or vinyl Ester) Vinly Ester resin has a bit higher critical temperature after cure and it has a much lower viscosity than epoxy whi; /archives//html/Towertalk/2005-05/msg00041.html (19,043 bytes)
110. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Mon, 2 May 2005 23:35:23 -0400; Just as a point of interest on color and heat. In a glass covered solar heater using Forest Green as the color on the heating element, if the water flow stops, I believe the resting temperature of th; /archives//html/Towertalk/2005-05/msg00045.html (9,467 bytes)
111. Re: [TowerTalk] polyrod (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Tue, 3 May 2005 02:04:35 -0400; One could think of an object here on Earth as an antenna receiving energy from the sun. Since the sun is transmitting about 4 × 10**26 watts, it is not difficult to understand why that Al plate; /archives//html/Towertalk/2005-05/msg00049.html (11,973 bytes)
112. Re: [TowerTalk] Polyphaser Part 098-1013G-A (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Wed, 4 May 2005 04:08:32 -0400; There should be some numbers on the unit. About your only option for "custom" is to call the company and they many not even be able to tell. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R -; /archives//html/Towertalk/2005-05/msg00081.html (8,484 bytes)
113. Re: [TowerTalk] Bird loading and elements (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Wed, 4 May 2005 13:21:04 -0400; What kind of birds are they? This reminds me, I was going to put up a photo of my antenna system showing a group of Cormorants using it as a wayover on their trip South. Cormorants are *big* birds. E; /archives//html/Towertalk/2005-05/msg00099.html (12,432 bytes)
114. Re: [TowerTalk] suspicious e-mails (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Wed, 4 May 2005 13:26:46 -0400; Virus checker or not... When you receive an unexpected e-mail with an atachment and particularly an exe, just delete it. If it comes from someone you know, send them an e-mail asking if they really s; /archives//html/Towertalk/2005-05/msg00101.html (8,059 bytes)
115. Re: [TowerTalk] Taking Down TV Towers (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Fri, 6 May 2005 17:00:55 -0400; I used to do a lot of smaller tower work and in my younger years even installed TV antennas as a sideline, but we finally got down to the point where about the only jobs were high pitched roofs on t; /archives//html/Towertalk/2005-05/msg00147.html (13,770 bytes)
116. Re: [TowerTalk] Ground strap to water pipe? (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Sun, 8 May 2005 20:23:31 -0400; Is this "water pipe" connected to a well or city water? We have city water and it's all plastic from the inlet valve out and 3/4". A one inch service feed was almost twice as much, but to install and; /archives//html/Towertalk/2005-05/msg00180.html (10,254 bytes)
117. Re: [TowerTalk] Need Help Getting Ground Rods Out (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Mon, 9 May 2005 15:47:18 -0400; I use an engine hoist and a couple of 2 X 6s laid out flat under the legs to keep it from sinking in. I chain looped around the ground rod so it pulls itself tight, or a good clamp and you can pull 8; /archives//html/Towertalk/2005-05/msg00208.html (9,959 bytes)
118. Re: [TowerTalk] Vatican Radio convicted for high cancer rates (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Tue, 10 May 2005 13:16:30 -0400; Another win for junk science. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhalstead.com _______________________________________________ See: http:/; /archives//html/Towertalk/2005-05/msg00226.html (8,229 bytes)
119. Re: [TowerTalk] KLM KT34a TriBander for sale (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Wed, 11 May 2005 19:21:12 -0400; That PayPal account required to bid may kill it. I refuse to use PayPal. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhalstead.com ________________; /archives//html/Towertalk/2005-05/msg00264.html (8,868 bytes)
120. Re: [TowerTalk] Rotor (score: 1): Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>; Date: Thu, 12 May 2005 13:48:16 -0400; I personally like the ProSisTel Big Boy rotors, but they are getting a bit pricy. I've been using the PST61 (I think that's the number, but I'd have to dig out the papers now to be sure) My second ch; /archives//html/Towertalk/2005-05/msg00280.html (9,782 bytes)

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