I just poured the base for a self supporting 80m full sized vertical. The manual recommends individual radial wires and to make sure they never overlap as that can cause issues. My question. I have a
See http://k9yc.com/160MPacificon.pdf 73, Jim K9YC _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 27 Oct 2016 00:16:58 -0400
Unlike Galvanized mesh, all the stucco mesh I've seen was painted steel and likely would not last. I don't know if the crossings are electrically connected. It's been years since I had reason to work
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 27 Oct 2016 06:56:09 -0400
The coated rabbit wire mesh also works but the coating must be sanded of were connections are made. On 10/27/2016 12:16 AM, Roger (K8RI) on TT wrote: Unlike Galvanized mesh, all the stucco mesh I've
Author: Kevin Kidd <kkbroadcastengineering@gmail.com>
Date: Thu, 27 Oct 2016 12:10:03 -0500
Mike, If it's not copper or some alloy thereof, don't waste your time for a permanent installation. Unless it is in a desert region, it's useful life could probably be measured in months. I have and
Some pretty sharp engineers disagree with this advice. Rob Sherwood, NC0B, first published on the usefulness of galvanized ground screen in 1977, and talked about it in presentations in the Dayton An
You can go to all the trouble of putting down "mesh" and risk having to do it all over again since that is a material and product not intended to be in contact with the ground. Or you can spend the
with Good points from Jim. 1. Mesh grounds have multiple current paths in parallel, so the individual wires don't need to have especially high conductivity. What does matter in a mesh screen is that
Rob, Kevin Kidd of AM Ground Systems could learn from us mere amateurs. You don't necessarily need to "spend the money" and use copper mesh. Jim mentioned Rob Sherwood's contribution of using galvani
Author: Kevin Kidd <kkbroadcastengineering@gmail.com>
Date: Fri, 28 Oct 2016 11:43:24 -0500
Actually amateur radio is where I have acquired much of my learning... Nor did I advocate it. We have mostly stopped using copper mesh around AM towers due to cost and availability. How long? Profess
Author: Kevin Kidd <kkbroadcastengineering@gmail.com>
Date: Fri, 28 Oct 2016 12:51:32 -0500
I can't entirely disagree with this but I have worked on enough AM sites where someone used steel (galvanized or not) in/on the ground and it has been very short lived. Everything from galvanized guy
I've always identified an interconnected mesh, regardless of what metal it's mad of as a counterpoise. It may, or may not be "tuned". Radials are generally identified as being of specific lengths gen
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Fri, 28 Oct 2016 14:08:03 -0500
Due to environmental concerns the use of asbestos is prohibited but Nomex works well and isn't scratchy. I'm sure have stated this, I will have to don my asbestos underwear. 73 Chuck, W6AJW _________
Kevin, I still have the mesh screens rolled up in the garage. They were down for 8 1/2 years. Still good shape. We cant base our decision to try it on what did (or didnt) work in other locations. The
good one guys ! hihihihi Bob K6UJ I'm sure have stated this, I will have to don my asbestos underwear. 73 Chuck, W6AJW _______________________________________________ ________________________________
Rob Sherwood was the Engineer in charge at KOA Radio 850 here in Colorado a 50kW station for many years. I got to visit the Transmitter site once. Quite impressive tour! W0MU Kevin Kidd of AM Ground