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21. [TowerTalk] Rebuilding TH-7 Traps (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Wed, 9 Sep 1998 19:52:58 -0400; The current price for traps from Hy-Gain is $27-$33. At that price, I'll rebuild. According to Linda at Hy-Gain, the wire used is #10 copper for the 15m traps and 102 mil aluminum for the 10m traps.; /archives//html/Towertalk/1998-09/msg00268.html (9,708 bytes)
22. [TowerTalk] Rebuilding TH-7 Traps (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Wed, 9 Sep 1998 19:57:49 -0400; Barry - Did you happen to check the resonant frequency of the traps before & after? I tried earlier this evening to check them with my RF-1 antenna analyzer. I was able to get pretty sharp nulls, but; /archives//html/Towertalk/1998-09/msg00269.html (7,852 bytes)
23. [TowerTalk] Guy Wire lengths (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Sun, 13 Sep 1998 18:17:54 -0400; Bob -- The *horizontal* forces of each guy wire at the tower will be equal, no matter which you tension first. If they are not equal, the tower will move until they are equal. With one guy wire longe; /archives//html/Towertalk/1998-09/msg00368.html (8,758 bytes)
24. [TowerTalk] Flat top vs Inv Vee (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Sun, 23 Aug 1998 06:12:08 -0400; <snip> Tom -- Can you quantify this effect? How many db could one expect to improve a dipole over poor or over good ground? Are there any references to this effect? Do you place the wires in parallel; /archives//html/Towertalk/1998-08/msg00752.html (8,813 bytes)
25. [TowerTalk] mounting barrel connectors on lightning bulkhead (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Thu, 23 Jul 1998 18:43:17 -0400; For drilling larger holes, I purchased a set of 8 inexpensive 1/2" to 1" , 1/2" shank drill bits. They are regularly $35.00 from: Wholesale Tool Box 68 12155 Stephens Drive Warren, MI 48089-0068 1-80; /archives//html/Towertalk/1998-07/msg00781.html (8,863 bytes)
26. [TowerTalk] More comments on lightning - second hand from an expert (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Fri, 5 Jun 1998 19:33:41 -0400; Thanks for interjecting some new facts into this debate, Dave. 89 years seems to be too far between strikes. Perhaps thats because In your analysis, you didn't mention that a strike near the tower m; /archives//html/Towertalk/1998-06/msg00198.html (8,791 bytes)
27. [TowerTalk] Aluminum in the ground (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Sun, 21 Jun 1998 06:49:00 -0400; Low numbers are acid, high numbers alkaline. 7.0 is distilled water. Each unit is a power of ten difference. See: http://www.agnr.umd.edu/users/agron/nutrient/Factshee/Lime/pHscale1.html Tom - N1MM -; /archives//html/Towertalk/1998-06/msg00720.html (10,447 bytes)
28. [TowerTalk] FS: Safety belts and harnesses (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Sat, 23 May 1998 07:58:40 -0400; Carabiner The spelling may be wrong, but that's what they're called. I own 5 for tower work. You should put one at the end of each work rope. They really speed up hitching/unhitching loads, and they; /archives//html/Towertalk/1998-05/msg00597.html (10,581 bytes)
29. [TowerTalk] Raising mast? (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Sat, 23 May 1998 08:05:40 -0400; through rope a If I remember my physics, the tension in the rope with an ideal pulley is 130 lbs. With real-world friction, it would be higher. Tom - N1MM take -- FAQ on WWW: http://www.contesting.co; /archives//html/Towertalk/1998-05/msg00600.html (9,052 bytes)
30. Fw: [TowerTalk] Rebar In Tower Base (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Wed, 1 Apr 1998 17:51:29 -0500; Malcolm -- If you are sinking the tower base in the concrete, what is the purpose of the rebar? I would think that a tower section would provide all the reinforcement necessary for the base. Tom - N1; /archives//html/Towertalk/1998-04/msg00029.html (10,091 bytes)
31. [TowerTalk] solder jobs up the tower (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Fri, 17 Apr 1998 06:13:30 -0400; I didn't see anyone mention the propane torch option... I purchased a propane (not butane) torch kit many years ago that included a soldering tip. It's big and crude, but it's how I solder PL-259's i; /archives//html/Towertalk/1998-04/msg00461.html (8,126 bytes)
32. [TowerTalk] Stripper for RG 213 (score: 1): Author: tomwagner@mindspring.com (Wagner); Date: Wed, 03 Dec 1997 17:29:59 -0500; Regarding stripping RG-213... You may want to try this technique: Using a sharp utility knife, cut though the outer insulation, shield and part-way through the dielectric. Use electricians pliers to; /archives//html/Towertalk/1997-12/msg00082.html (9,810 bytes)
33. [TowerTalk] Climbing Alone (score: 1): Author: tomwagner@mindspring.com (Wagner); Date: Fri, 12 Dec 1997 04:37:55 -0500; Some have suggested using an HT or a cell phone when you go up the tower. Why not use a cordless phone? It's cheaper if you drop it, and you can get your local 911 number if you need to. I just got a; /archives//html/Towertalk/1997-12/msg00278.html (8,417 bytes)
34. [TowerTalk] Climbing Alone (score: 1): Author: tomwagner@mindspring.com (Wagner); Date: Fri, 12 Dec 1997 17:54:54 -0500; Both my 49 mHz & 900 mHz phones have about 500' range. My tower is somewhat shorter than that. Tom -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Adm; /archives//html/Towertalk/1997-12/msg00305.html (10,062 bytes)
35. [TowerTalk] Whistling trap holes (score: 1): Author: tomwagner@mindspring.com (Wagner); Date: Wed, 13 Aug 1997 17:36:08 -0400; Was there ever an answer as to how to get rid of the TH-7's whistling? Tom - N1MM -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative reque; /archives//html/Towertalk/1997-08/msg00447.html (7,188 bytes)
36. [TowerTalk] N4KG: LIGHTNING STRIKE SURVEY (score: 1): Author: tomwagner@mindspring.com (Wagner); Date: Sat, 19 Jul 1997 09:25:12 -0400; It's hard to tell whether a hit is direct or not, but I have had two hits,one last year (#1) and one last week (#2). machine,about $1500 total. -about 8" wide. Feedlines in conduit with ground wire o; /archives//html/Towertalk/1997-07/msg00622.html (11,337 bytes)
37. [TowerTalk] Autek RF-1 (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Fri, 16 May 1997 10:32:37 -0400; ______________________________________________________________ Determining R + jX As discussed above, R can be determined by canceling X with a series capacitor or inductor. But, R & X can also be c; /archives//html/Towertalk/1997-05/msg00405.html (10,366 bytes)
38. [TowerTalk] Verticals of Rohn 25 (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Tue, 22 Apr 1997 06:12:03 -0400; I have read that bare copper leaching onto galvanized steel encourages rust. Can anyone confirm? Wouldn't an aluminum wire be a better choice? Tom - N1MM _____________________________________________; /archives//html/Towertalk/1997-04/msg00687.html (9,251 bytes)
39. [TowerTalk] More on soldering... (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Thu, 27 Mar 1997 21:33:24 -0500; Barry - Look for a standard propane torch "kit". Mine came with a soldering tip. It looks like the tip of a big old soldering iron. It's a little hard to manage the heat on the tip, but it's much bet; /archives//html/Towertalk/1997-03/msg00628.html (8,913 bytes)
40. TRUE NORTH QUERY (score: 1): Author: tomwagner@mindspring.com (Tom Wagner); Date: Tue, 7 Jan 1997 06:10:11 -0500; Yes, Mick. Just add/subtract the declination listed on the topographical map for your area. Any rock-climbing or camping store should have the maps. You need one of these maps anyway to do terrain mo; /archives//html/Towertalk/1997-01/msg00142.html (8,598 bytes)

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