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Total 7 documents matching your query.

1. [TowerTalk] Radiating Lightning Rod (score: 1): Author: "Doug Rehman" <doug@k4ac.com>; Date: Mon, 1 Jun 2009 21:23:51 -0400; Well my GP-15 vertical on the top of the tower looks like it took a hit. It still works, but the SWR is varies all over the place (used to be pretty flat across 2 meters). This is the third damaged/d; /archives//html/Towertalk/2009-06/msg00016.html (7,509 bytes)
2. Re: [TowerTalk] Radiating Lightning Rod (score: 1): Author: "Michael Ryan" <mryan001@tampabay.rr.com>; Date: Mon, 1 Jun 2009 22:29:00 -0400; Those fiberglass antennas are a sittin' duck ain't they? - Mike Well my GP-15 vertical on the top of the tower looks like it took a hit. It still works, but the SWR is varies all over the place (used; /archives//html/Towertalk/2009-06/msg00018.html (8,861 bytes)
3. Re: [TowerTalk] Radiating Lightning Rod (score: 1): Author: "Jim Hargrave" <w5ifp@gvtc.com>; Date: Mon, 01 Jun 2009 20:11:44 -0800; Doug, I have a copper tri-band (144/220/440) J-Pole on top of my mast. I made it using 1/2 in. hard drawn copper with regular water pipe "T" and "L" fittings with a cap on top. I have it mounted to t; /archives//html/Towertalk/2009-06/msg00020.html (9,861 bytes)
4. Re: [TowerTalk] Radiating Lightning Rod (score: 1): Author: Rick Stealey <rstealey@hotmail.com>; Date: Tue, 2 Jun 2009 13:20:07 +0000; If there is lightning induced current coming down the coax lines (in parallel with current coming down the tower legs themselves) the inductance of the coil causes a large voltage to appear across th; /archives//html/Towertalk/2009-06/msg00023.html (9,245 bytes)
5. Re: [TowerTalk] Radiating Lightning Rod (score: 1): Author: "Jim Hargrave" <w5ifp@gvtc.com>; Date: Tue, 02 Jun 2009 14:50:00 -0800; Rick, I did not elaborate on the tower/coax grounding, because it was not the question. I basically just responded to the query about using a J-Pole on top of the tower. However, since you have raise; /archives//html/Towertalk/2009-06/msg00048.html (13,924 bytes)
6. Re: [TowerTalk] Radiating Lightning Rod (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Tue, 02 Jun 2009 20:15:37 -0700; One CRITICALLY important thing I don't see in your post is that ALL of those ground rods must be bonded together by a very low impedance path, and ideally they should be bonded together outside your; /archives//html/Towertalk/2009-06/msg00054.html (10,220 bytes)
7. Re: [TowerTalk] Radiating Lightning Rod (score: 1): Author: "Jim Hargrave" <w5ifp@gvtc.com>; Date: Wed, 03 Jun 2009 06:08:35 -0800; Jim, Sorry I left out the mentioning the AC Power grounding. The ground rod that I installed before they poured the slab is the Power ground as well as my common Radio ground. My AC power comes into; /archives//html/Towertalk/2009-06/msg00065.html (11,246 bytes)

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