- 301. Crank-up mishap (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Wed, 12 Feb 1997 02:59:34 -0800 (PST)
- Thanks for sharing this, Matt. Being "in a hurry" was not his problem. Climbing a crankup was . . . The rule is never, Never, NEVER, ever, Ever, EVER climb a crankup. Even if it is down and even if
- /archives//html/Towertalk/1997-02/msg00262.html (9,562 bytes)
- 302. Tower Loading (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Wed, 12 Feb 1997 02:59:06 -0800 (PST)
- Hi Bryan, After 44 years in ham radio and watching hundreds of towers very carefully all of that time, I can't think of a single failure of the type you describe. I am very interested in what sort o
- /archives//html/Towertalk/1997-02/msg00263.html (8,880 bytes)
- 303. NEC & Tower Permits (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Wed, 12 Feb 1997 14:50:32 -0800 (PST)
- Wouldn't you think that NEC 810-13 is refering to two feet of clearance between the electrical service and a STANDING tower rather than two feet of clearance as it falls down? Stan w7ni@teleport.com
- /archives//html/Towertalk/1997-02/msg00274.html (9,697 bytes)
- 304. Guy wires... (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Wed, 12 Feb 1997 14:51:48 -0800 (PST)
- Think of it this way: if you were to tighten the cable clamp so tight that it pinched the cable in half, the U part would do the pinching because the saddle part spreads the load out over more of th
- /archives//html/Towertalk/1997-02/msg00277.html (8,041 bytes)
- 305. WTB: R25 drive base, house bracket (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Thu, 13 Feb 1997 10:37:48 -0800 (PST)
- you have either or both and want to part with them, please send me email at nj2l@mdsroc.com. There are two kinds of 25G drive bases that I am aware of. One is a flat plate with a spike of angle iron
- /archives//html/Towertalk/1997-02/msg00302.html (7,765 bytes)
- 306. Crankup safety (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Thu, 13 Feb 1997 16:22:21 -0800 (PST)
- Well, I have been repeating what all the crankup manufacturers constantly say: "Never climb a crankup. Use an extension ladder instead." I have always assumed it was for safety. Reflecting on this f
- /archives//html/Towertalk/1997-02/msg00309.html (9,725 bytes)
- 307. Safe crank up work? (was: Crank-up mishap) (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Thu, 13 Feb 1997 16:21:37 -0800 (PST)
- tower from the I hate to disagree with you, Mike, but considering all of the crankup horror stories I have heard, I must. Each new story tells of yet another way a crankup can "get you". I am convin
- /archives//html/Towertalk/1997-02/msg00310.html (10,671 bytes)
- 308. TB3 Thrust Bearing (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Mon, 13 Jan 1997 23:48:37 -0800 (PST)
- If you take a close look at your TB3, you will see a set screw inside which, when removed, allows the bearings to come out. There is really nothing that keeps this set screw in the right place. It c
- /archives//html/Towertalk/1997-01/msg00302.html (8,787 bytes)
- 309. 4130 masts (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Mon, 13 Jan 1997 23:44:23 -0800 (PST)
- Hi Bob, As I understand it, and I am not a metalurgist or a mechanical engineer (however I consulted some when I wrote the article), what you call the "PSI rating" I called the Yield Strength of the
- /archives//html/Towertalk/1997-01/msg00303.html (12,795 bytes)
- 310. Cinch Jones plugs (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Tue, 14 Jan 1997 03:07:33 -0800 (PST)
- They are in the Allied Catalog #956 on page 254. If you don't have an Allied Catalog, call 1-800-433-5700 and ask for one. Stan w7ni@teleport.com -- FAQ on WWW: http://www.contesting.com/towertalkfa
- /archives//html/Towertalk/1997-01/msg00304.html (6,970 bytes)
- 311. Hardline Connectors (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Tue, 14 Jan 1997 19:24:30 -0800 (PST)
- Hi Joe, There is a company that makes connectors for almost every kind of CATV hardline: Gilbert Engineering P.O. Box 23189 Phoenix, AZ 85063 Phone: 1-800-528-5567 I have bought connectors from them
- /archives//html/Towertalk/1997-01/msg00313.html (7,807 bytes)
- 312. Prop-pitch (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Fri, 17 Jan 1997 02:28:44 -0800 (PST)
- I'd put about 10 volts AC on it and see how long it takes to make one revolution. If it has been modified, it will turn about 1 rpm with 10 volts AC on it. If it is not modified, it will take about
- /archives//html/Towertalk/1997-01/msg00367.html (7,417 bytes)
- 313. Towers & insurance (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Sun, 19 Jan 1997 02:30:45 -0800 (PST)
- Food for Thought: How honest is it to file a claim for tower wind damage when the damage is caused by a bent water pipe mast . . . ? You could list dozens of failure modes that are due to stupid blun
- /archives//html/Towertalk/1997-01/msg00387.html (7,246 bytes)
- 314. TOWER FEED LINES (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Mon, 20 Jan 1997 21:17:05 -0800 (PST)
- Hi Bob, Usually, when crankup coax arms are used, the cables are bundled together with tiewraps or electrical tape every couple of feet or so and attached firmly to the coax arms. The cables will ha
- /archives//html/Towertalk/1997-01/msg00424.html (7,712 bytes)
- 315. CB or not CB...That is the question! (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Mon, 20 Jan 1997 21:16:59 -0800 (PST)
- Let's see . . . what's the penalty for blackmail . . . ? I once heard of a handy little device that might be useful here. It's a battery operated noise generator with output over the entire 27 MHz b
- /archives//html/Towertalk/1997-01/msg00428.html (8,991 bytes)
- 316. Rohn 25 Rotor Mounting (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Wed, 29 Jan 1997 04:49:10 -0800 (PST)
- Hi Dave, This is what I have done: I use a 1 piece 18.5 foot mast. The rotator is mounted at the junction of the top section and the section just below it. I had to cut out one horizontal at the bot
- /archives//html/Towertalk/1997-01/msg00541.html (9,212 bytes)
- 317. Telephone pole loading (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Wed, 4 Dec 1996 22:43:14 -0800 (PST)
- I had one that was 94 feet out of the ground in Canoga Park, CA in the mid '60s. Only had a TH6 and a 402BA on it so it was pretty lightly loaded. It was 110 feet long overall. 22 inches diameter at
- /archives//html/Towertalk/1996-12/msg00057.html (9,232 bytes)
- 318. HDBX help (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Mon, 9 Dec 1996 04:21:45 -0800 (PST)
- That limitation has been around for 20 years, at least. Stan w7ni@teleport.com -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests
- /archives//html/Towertalk/1996-12/msg00120.html (6,977 bytes)
- 319. easy off guy attachment? (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Tue, 17 Dec 1996 03:29:52 -0800 (PST)
- I am having a little problem envisioning this process. For the Hazer to pass the lower guy point, I am guessing the guys have to actually be removed from the tower, right? Just removing them from th
- /archives//html/Towertalk/1996-12/msg00261.html (7,997 bytes)
- 320. Guy Wire Tension (score: 1)
- Author: w7ni@teleport.com (Stan Griffiths)
- Date: Tue, 17 Dec 1996 17:37:19 -0800 (PST)
- Here I am again with more questions and not very good answers. Asking questions seems to be my strong point. I have read that guys should be tensioned to 10% of their ultimate breaking strength and I
- /archives//html/Towertalk/1996-12/msg00295.html (7,999 bytes)
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