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81. [TowerTalk] Tri-Ex Tower Base (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Thu, 24 Apr 1997 21:50:24 -0500; Well - I will give yu the info and let you decide: A-36 has minimum yield strength of 36,000 PSI. Standard rebar has a yield of 40,000 PSI. High strength rebar has yield of 60,000 PSI. Don't know wha; /archives//html/Towertalk/1997-04/msg00776.html (8,417 bytes)
82. [TowerTalk] New T2X - HBX towers (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Mon, 31 Mar 1997 22:32:09 -0600; A friend of mine had a 2 element 40 on a 48 ft HBX. He mentioned that it would wrap and upwrap about 15 degrees in torsion under certain wind conditions. One time I was up replacing the rotor for him; /archives//html/Towertalk/1997-03/msg00004.html (9,588 bytes)
83. HD bit the dust...washed out its mouth (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sat, 01 Feb 1997 09:34:54 -0600; Sorry this is so late- have been off the reflector for a while due to work load. What you did is very good but may not be perfect, so thought I would add some information. What is stored on the circu; /archives//html/Towertalk/1997-02/msg00003.html (8,337 bytes)
84. Tower Loading (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Wed, 05 Feb 1997 20:44:10 -0600; If you want professional advice, i.e. no handwaving, then call ARRL head quarters and get the name of the Volunteer Consulting Engineer in your area. Make an appointment and arrange an initial visit.; /archives//html/Towertalk/1997-02/msg00084.html (7,734 bytes)
85. Tower Loading (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Thu, 06 Feb 1997 20:42:50 -0600; The TIA-222-F Tower Structure Standards shows an accepted method of determining wind areas and wind loading based on simplified and standardized formula. It provides wind speed design requirements ba; /archives//html/Towertalk/1997-02/msg00102.html (9,386 bytes)
86. Tower Loading (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sun, 09 Feb 1997 19:38:14 -0600; EIA Standards, Publications, and Standards Proposals are available from: Global Engineering Documents a division of IHS 15 Inverness Way, Englewood, Colorado 80112 5704. For pricing, member discounts; /archives//html/Towertalk/1997-02/msg00188.html (10,367 bytes)
87. NEC & Tower Permits (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Mon, 10 Feb 1997 22:01:53 -0600; The reference in NEC 810-13 to 2' is for installed location, not fall distance. The tower and feedlines and guy wires have to be at least 2' away from any power lines, ie. distribution or house feede; /archives//html/Towertalk/1997-02/msg00221.html (9,563 bytes)
88. Towerbase -- how close to a house? (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Mon, 10 Feb 1997 21:55:38 -0600; Generally you want to the bottom of the tower hole into "undisturbed earth". If you have a basement, the original basement excavation may have been farther out than 3'. The other concern is that a to; /archives//html/Towertalk/1997-02/msg00222.html (9,433 bytes)
89. NEC & Tower Permits (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Mon, 10 Feb 1997 22:06:47 -0600; Re: my previous comments. Yes you can put one there, but I would not be real wild about climbing or working on one that is that close to electrical lines. I don't even like working on tube type amps!; /archives//html/Towertalk/1997-02/msg00223.html (9,606 bytes)
90. Loos Guy Wire Tensioner (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Mon, 10 Feb 1997 22:10:57 -0600; Actually anything from 8% to 15% will work without too much difference in guy wire vibration excited by the wind. de n0yvy steve -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions; /archives//html/Towertalk/1997-02/msg00226.html (8,369 bytes)
91. RF Safety (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sat, 15 Feb 1997 21:47:48 -0600; Actually the RF levels specified are from the ANSI standard. The FCC had steadfastly stayed out of the RF safety issue for many years. They only issued their rules in response ot a directive from con; /archives//html/Towertalk/1997-02/msg00343.html (10,649 bytes)
92. Guy wire help (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Tue, 18 Feb 1997 21:31:18 -0600; Just on principles, I would go with the 1/4" EHS in a 100 MPH wind zone and definitely stick with the 4 way guying if I possibly could make it work. Rohn 25 has a maximum compressive strength of over; /archives//html/Towertalk/1997-02/msg00402.html (8,184 bytes)
93. TOWER BASE DRAWINGS (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Tue, 18 Feb 1997 21:14:22 -0600; I am surprised that the Texas Tower PE was not licsened in multiple states. You don't have to be a resident to be licensed in a state. Reciprocity is usually accepted and you just pay a fee. de n0yvy; /archives//html/Towertalk/1997-02/msg00404.html (8,395 bytes)
94. Tower rebar bonding (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sat, 11 Jan 1997 01:03:05 -0600; There are various grades of rebar. All rebar is some form of steel so it can bee welded. The trick is the resulting microstructure of the welded area. Some grades of rebar have guarenteed metalurical; /archives//html/Towertalk/1997-01/msg00260.html (8,837 bytes)
95. Los Angeles City and Rancho Palos Verdes antenna ordinances (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sat, 11 Jan 1997 14:03:45 -0600; Another ordinance on the web is at http://www.rf.org/towerord.html. This ordinance specifies the regulation for towers in general - ham and commercial, including Cell, radio and TV broadcast, and bee; /archives//html/Towertalk/1997-01/msg00264.html (11,772 bytes)
96. 4130 Cromolly Mast (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sun, 19 Jan 1997 20:22:02 -0600; Contact your local or regional steel supplier with what you want and they can get it for you. Look under Steel Distributors and Warehouses in the Yellow Pages. You may have to call several to get one; /archives//html/Towertalk/1997-01/msg00401.html (7,734 bytes)
97. Inquiry: Rohn 45 Foldover Tower vs Hazer on Rohn 45 Tower (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sun, 01 Dec 1996 08:10:31 -0600; I would go with the fold over vs the Hazer. Hazer requires you to drop the guys to get the trolley to the ground. Number 6 wire is not going to be good enough. I use 2/0 off the tower and progress do; /archives//html/Towertalk/1996-12/msg00000.html (7,742 bytes)
98. Erecting my First (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Sun, 01 Dec 1996 22:50:28 -0600; Well let me see - 4x4x4 = 64 cubic feet or over 2 cubic yards. The little mixer that a guy in the club lets us use does 2 and 1/2 to 3 cubic feet at a time, so that is 20 to 25 loads at 15 minutes pe; /archives//html/Towertalk/1996-12/msg00005.html (8,637 bytes)
99. Cable Clips (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Wed, 04 Dec 1996 22:13:56 -0600; If I have something that is rusted, I take it apart, and wire brush it to take off anything loose. Then I use something called Metal Prep by 3M. It is an acid that takes the red rust that is remainin; /archives//html/Towertalk/1996-12/msg00056.html (11,153 bytes)
100. Tower refinishing (score: 1): Author: sawyers@inav.net (Steve Sawyers n0yvy); Date: Mon, 09 Dec 1996 22:42:39 -0600; One way to refinish is to have them stripped and regalvanized. The American Galvanizers Association has a web page at http://usalink.net/aga/ It lists members from around the country. Take a look and; /archives//html/Towertalk/1996-12/msg00137.html (7,210 bytes)

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