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Total 5 documents matching your query.

1. [TowerTalk] Conductivity of a reinforced concrete rooftop (score: 1): Author: "David J. Sourdis - HK1A" <hk1kxa@hotmail.com>; Date: Wed, 3 Apr 2013 23:26:39 -0500; Any hint on the values of conductivity and relative dielectric constant of a reinforced concrete rooftop? David HK1A EC5KXA AE5XQ _______________________________________________ _____________________; /archives//html/Towertalk/2013-04/msg00024.html (7,007 bytes)
2. Re: [TowerTalk] Conductivity of a reinforced concrete rooftop (score: 1): Author: David Robbins <k1ttt@verizon.net>; Date: Thu, 04 Apr 2013 06:25:07 -0500 (CDT); better than dirt, worse than solid metal. Any hint on the values of conductivity and relative dielectric constant of a reinforced concrete rooftop? David HK1A EC5KXA AE5XQ ___________________________; /archives//html/Towertalk/2013-04/msg00025.html (7,241 bytes)
3. Re: [TowerTalk] Conductivity of a reinforced concrete rooftop (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Thu, 04 Apr 2013 06:41:44 -0700; Any hint on the values of conductivity and relative dielectric constant of a reinforced concrete rooftop? David HK1A EC5KXA AE5XQ At what frequency? I have a lot of data on concrete and other buildin; /archives//html/Towertalk/2013-04/msg00028.html (8,431 bytes)
4. Re: [TowerTalk] Conductivity of a reinforced concrete rooftop (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Thu, 04 Apr 2013 15:23:52 -0700; Another way to think about this is that rebar is spaced more closely than most any HF radial wires. Which raises questions for my site: what to do when a buried radial field encounters a concrete pad; /archives//html/Towertalk/2013-04/msg00036.html (10,238 bytes)
5. Re: [TowerTalk] Conductivity of a reinforced concrete rooftop (score: 1): Author: "David J. Sourdis - HK1A" <hk1kxa@hotmail.com>; Date: Thu, 4 Apr 2013 21:32:51 -0500; Thank you for the answers guys. It makes sense to ignore the concrete if I am talking about HF frequencies and the grid spacing of the re-bars or, better yet, the contraction by temperature mesh is l; /archives//html/Towertalk/2013-04/msg00037.html (10,492 bytes)

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