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1. [TowerTalk] more - Precip static (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 01 May 1998 17:12:26 +0000; Wait a minute, aren't you're advocating two opposites to accomplish the same thing--round smooth balls and sharp pointed tips. I'll go with the sharp and pointed. Eyeball protection is the only vali; /archives//html/Towertalk/1998-05/msg00029.html (9,086 bytes)
2. [TowerTalk] MFJ Guardan Angel Lightning Surge Protector (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 01 May 1998 17:34:45 +0000; A few days ago I posted a note in response to someone's suggestion that MFJ manufacture a DC blocked surge protector now that Polyphaser's patent has expired. In my post I stated that I had e-mailed; /archives//html/Towertalk/1998-05/msg00031.html (7,557 bytes)
3. [TowerTalk] more - Precip static (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 01 May 1998 20:17:39 +0000; [snip] Actually I've seen lot's of them. The individual fibers really are individual sharp points when compared to the airframe. The idea is to provide these points so that the static charge can blee; /archives//html/Towertalk/1998-05/msg00036.html (9,066 bytes)
4. [TowerTalk] concrete base type (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Tue, 05 May 1998 20:26:06 +0000; The Rohn drawing for that base (Base CB 1) calls for four #6 vertical bars with #3 lateral ties on 12" centers. The drawing number is C610621. The base seems to be pretty much the same as the base fo; /archives//html/Towertalk/1998-05/msg00203.html (7,696 bytes)
5. [TowerTalk] more - Precip static (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Thu, 07 May 1998 15:24:38 +0000; [snip] Just happened to be putting a new antenna on the car when this was posted, and happened to have a fine stainless steel wire brush lying around. I thought it might be interesting to try the new; /archives//html/Towertalk/1998-05/msg00267.html (10,320 bytes)
6. [TowerTalk] Disconnecting cables and lightning (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Thu, 07 May 1998 14:46:11 +0000; [snip] [snip] In the early 80's I spent an entire summer installing lightning protection on mountain top repeaters and remote bases. For the coax we used Polyphaser protectors, on the AC (where we ha; /archives//html/Towertalk/1998-05/msg00268.html (10,725 bytes)
7. [TowerTalk] BP filters against power line noise (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Mon, 11 May 1998 11:31:44 +0000; [snip] Just a thought, did you try calling the power company and informing them of the problem? If the noise is due to a fault on the power line, they have an obligation to correct it. 73 Malcolm KR4; /archives//html/Towertalk/1998-05/msg00341.html (8,354 bytes)
8. [TowerTalk] Rebar In Tower Base (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Wed, 01 Apr 1998 09:54:53 +0000; To All, While I have put up a number of towers before, this will be the first with rebar in the base. I will soon be putting up a self supporting 25G. The Rohn drawings require the use of rebar in th; /archives//html/Towertalk/1998-04/msg00007.html (8,613 bytes)
9. [TowerTalk] Deed Restrictions (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Wed, 01 Apr 1998 10:24:32 +0000; Gee, on April 1st. Who'da thunk it? 73 Malcolm KR4HP -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contes; /archives//html/Towertalk/1998-04/msg00009.html (7,930 bytes)
10. [TowerTalk] Rebar In Tower Base (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Wed, 01 Apr 1998 10:43:20 +0000; [snip] [snip] That's really interesting. I respect Polyphaser's opinion but Rohn specifically states that the rebar cage must not be welded. I'd love to hear those two industry leaders debate their c; /archives//html/Towertalk/1998-04/msg00013.html (8,543 bytes)
11. [TowerTalk] Rebar In Tower Base (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Wed, 01 Apr 1998 12:47:37 +0000; Ok, but I was trying to minimize the posting to only the essential details. Here they are: The Rohn 25G is rated up to 40 foot self supporting depending on wind zone and wind loading per the Rohn cat; /archives//html/Towertalk/1998-04/msg00020.html (9,583 bytes)
12. [TowerTalk] Rebar In Tower Base (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Wed, 01 Apr 1998 17:58:10 +0000; Well the base Rohn calls for is 4x4x4. Apparently the tower itself is not sufficient. Bracketed towers get to use a smaller base (2x2x4 or 2Dx4) and Rohn does not call for rebar in those. But they do; /archives//html/Towertalk/1998-04/msg00030.html (8,570 bytes)
13. [TowerTalk] Rebar In Tower Base (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 03 Apr 1998 20:37:39 +0000; No different from what I posted above which is a response to a post that said 25G is unrated for self supporting use. As I indicate below, I am going to 35 foot where it is rated at 1.4 s.f. for 80 m; /archives//html/Towertalk/1998-04/msg00088.html (11,997 bytes)
14. [TowerTalk] Re: Tower Under-Engineering (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Sun, 05 Apr 1998 17:09:38 +0000; [snip] Yep, it's Glades County. Monroe County is strictly a mailing address these days. Come now, an imbedded tower may be buckled by high winds but it isn't going to to be torn loose from an 8000 lb; /archives//html/Towertalk/1998-04/msg00112.html (8,905 bytes)
15. [TowerTalk] Slump testing? (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Tue, 07 Apr 1998 16:59:06 +0000; [snip] Sounds like you are acting as your own prime contractor--also known as the guy who is responsible for EVERYTHING. Did you consider hiring an outside prime to do the pour for you? It might cost; /archives//html/Towertalk/1998-04/msg00185.html (8,740 bytes)
16. [TowerTalk] Wind Zone Map (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Thu, 09 Apr 1998 15:36:29 +0000; To All, While nosing about the net I stumbled on a Wind Zone Map at Pirod's site. The URL is: http://www.skyenet.net/pirod/wszmap.htm The site also has an interesting discussion of tower engineering.; /archives//html/Towertalk/1998-04/msg00246.html (7,413 bytes)
17. [TowerTalk] Wind Zone Map (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 10 Apr 1998 09:23:33 +0000; I suspect that it is an area that gets higher winds than the average for the area. I say this because I used to have some mountain top LMR sites in one of those zones. We got hellish winds up there r; /archives//html/Towertalk/1998-04/msg00261.html (7,639 bytes)
18. [TowerTalk] Buried Coax (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 10 Apr 1998 14:25:05 +0000; Polyphaser recommends EMT grounded at the tower end only. Helps with lightning protection (also keeps the underground critters from gnawing on your feedline). 73 Malcolm KR4HP -- FAQ on WWW: http://w; /archives//html/Towertalk/1998-04/msg00269.html (7,228 bytes)
19. [TowerTalk] relays (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Fri, 10 Apr 1998 20:59:00 +0000; [snip] I sure do. For one thing the relays are going to have to be mounted to or on something. And that something is going to have to be supported somehow. If any of the support structure is anything; /archives//html/Towertalk/1998-04/msg00280.html (8,326 bytes)
20. [TowerTalk] Without Benefit of Concrete (score: 1): Author: rudder1@ibm.net (Malcolm Clark); Date: Mon, 13 Apr 1998 10:23:11 +0000; FWIW, Rohn manufactures a drive in base for 25G that does not require any concrete. It is part number SDB25G and is similar to a regular concrete base plate except that a large flanged spike is welde; /archives//html/Towertalk/1998-04/msg00342.html (9,016 bytes)

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