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1. [Towertalk] NY State antenna legislation:: 95 feet is NOT a limit (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Mon, 1 Jul 2002 05:06:44 -0400; Hi Steve. I guess I said it privately, and not on reflector...but the fine print matters a very great deal. Your description probably should be on reflector. I've taken the liberty. Does the proposed; /archives//html/Towertalk/2002-07/msg00025.html (10,181 bytes)
2. [Towertalk] 45G foldover (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Mon, 1 Jul 2002 05:27:46 -0400; I just took down my 45G foldover. It was house-bracketed, and constituted the world's largest wind chime, in gusts. It served quite well to provide cold weather access to antennas at modest heights,; /archives//html/Towertalk/2002-07/msg00026.html (7,738 bytes)
3. [Towertalk] helix windload: an interesting problem (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sat, 6 Jul 2002 09:10:57 -0400; Eric, wd3q; Towertalkians: I'd be interested in knowing if someone pops up with a real solution to this problem. Let me suggest a couple of simple approximations, in the hope that this will stimulate; /archives//html/Towertalk/2002-07/msg00122.html (9,008 bytes)
4. [Towertalk] Estimation of yagi windload (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sat, 6 Jul 2002 10:02:03 -0400; Towertalkians: In thinking about Eric's question of windload on a helix, I came to realize I'd never seen a thorough approach to windload on a yagi. * Does anyone have a reference to a published anal; /archives//html/Towertalk/2002-07/msg00123.html (7,711 bytes)
5. [Towertalk] 20m antennas for sailing (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sat, 6 Jul 2002 10:35:41 -0400; Brett, The common practice of insulating the backstay on a sailboat ABOVE the point where casual human contact can take place, is driven by personal safety considerations. An insulated wire running f; /archives//html/Towertalk/2002-07/msg00124.html (9,203 bytes)
6. [Towertalk] mast disaster avoidance (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Thu, 11 Jul 2002 10:07:52 -0400; Folks: This thread still seems to persist. Some comments are and a question are in order: N4KG recommended either placing the mast inside the tower while at the 20-30' level, or using a crane. He fur; /archives//html/Towertalk/2002-07/msg00287.html (9,347 bytes)
7. [Towertalk] mast disaster avoidance (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Thu, 11 Jul 2002 14:00:22 -0400; Mike... If you had a ginpole with a 2 wheel block on top (never seen one, myself. Do they exist?), you would reduce the load on each run of line, proportional to the number of lines. But the load on; /archives//html/Towertalk/2002-07/msg00294.html (8,307 bytes)
8. [Towertalk] mast disaster avoidance (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Thu, 11 Jul 2002 18:38:43 -0400; YES! you got it, Chris. There's a 100 lb vector due to the load, and another due to the lift. With ginpoles we know, it doesn't matter how many ropes and wheels you put in the system--there's still 2; /archives//html/Towertalk/2002-07/msg00307.html (11,935 bytes)
9. [Towertalk] here's one worth echoing (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Thu, 11 Jul 2002 20:54:04 -0400; -0- Another trick is to use a snatch block at the bottom of the tower for the pull line from the gin pole. Enlist three or four volunteers and have them walk with the line away from the tower instead; /archives//html/Towertalk/2002-07/msg00319.html (7,417 bytes)
10. [Towertalk] ginpole redux (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Fri, 12 Jul 2002 03:33:11 -0400; kk1l observed that I wasn't thinking clearly, with respect to possible pulley scenarios and ginpole loads. It IS possible to reduce the load on the pole, by using a 2 part tackle on the LOAD side of; /archives//html/Towertalk/2002-07/msg00333.html (7,108 bytes)
11. [Towertalk] WANTED (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sat, 13 Jul 2002 11:04:06 -0400; Folks, 1) Looking for a rohn 25G 2' flat top section, and a rotor shelf. So long as it's structurally sound, appearance isn't important. It will be olive drab when I'm done. 2) Looking for a source o; /archives//html/Towertalk/2002-07/msg00366.html (6,481 bytes)
12. [Towertalk] re: Spray Paint (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sat, 13 Jul 2002 11:07:27 -0400; Hold off on sources info. You CAN find anything on Google! Sorry, but my question was a "ready, fire, aim" exercise. In the midst of this, though, I found olive drab DUCT TAPE! Just what the doctor o; /archives//html/Towertalk/2002-07/msg00369.html (6,339 bytes)
13. [Towertalk] ab577 sidemount (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Fri, 19 Jul 2002 22:12:11 -0400; TT, Dick: There is, indeed a side mount for the ab577. It is designed for BOTH the ab577 and ab621, and is a metal plate of about 18" x 24", and is designed to hold a small dish. I have several of th; /archives//html/Towertalk/2002-07/msg00516.html (9,782 bytes)
14. [Towertalk] antenna models? (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Fri, 19 Jul 2002 22:26:25 -0400; TT: Dick Green's request for models for th7, and 402CD resonated here. No point in re-inventing the wheel. If anyone has working models for either beam, or for an lpda 14-30 of 8 elements, or th6, be; /archives//html/Towertalk/2002-07/msg00517.html (6,462 bytes)
15. [Towertalk] rats with wings (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Mon, 22 Jul 2002 21:06:15 -0400; A high power pellet rifle might help reduce the population. WalMart sells them. I live in a no-shoot zone, but according to my local police, these are acceptable for reducing the population of chipmu; /archives//html/Towertalk/2002-07/msg00606.html (6,894 bytes)
16. [Towertalk] single point ground (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Wed, 24 Jul 2002 00:47:27 -0000; Bill, First, you need to recognize that the 2nd floor windows are too far from ground to be of value. What you do there is cosmetic, and weather seal only. Second, in addition to providing a ground p; /archives//html/Towertalk/2002-07/msg00654.html (8,893 bytes)
17. [Towertalk] SteppIR (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Wed, 24 Jul 2002 13:15:39 -0400; Today I had my first SteppIR x SteppIR QSO. It started with EG9IA on 17 followed by 9K2OK. Then EG9IA on 20. I moved off frequency and said 1-2-3 test and was called by 8Q/DL1SMT. Other QSO's logged; /archives//html/Towertalk/2002-07/msg00677.html (7,014 bytes)
18. [Towertalk] cell splitting--- and community planning (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sun, 28 Jul 2002 13:33:36 -0400; The discussion about cell splitting is particularly interesting, because it is resulting in zoning law changes in many communities. Perhaps this is best taken to the law reflector...so let's not deba; /archives//html/Towertalk/2002-07/msg00749.html (9,156 bytes)
19. [Towertalk] impossible ground (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sun, 28 Jul 2002 18:44:04 -0400; Ford, et. al.: No, Bill isn't toast because his shack is on the second floor. ICE correctly instructed him to place the aluminum panel at the point of entry, at ground level. That is his Single Point; /archives//html/Towertalk/2002-07/msg00761.html (7,420 bytes)
20. [Towertalk] log feed systems (score: 1): Author: jljarvis@adelphia.net (jljarvis); Date: Sat, 8 Jun 2002 17:57:47 -0400; W8JI says "never tape the feedline along the boom of an lpda, as some mfr's suggest..." While I appreciate the coupling issues... what alternative would you suggest? As a practical matter, mine seems; /archives//html/Towertalk/2002-06/msg00106.html (6,812 bytes)

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