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1. Re: [TowerTalk] Sweet spot locations (score: 1): Author: K6TFZ@aol.com; Date: Fri, 3 Aug 2007 15:58:40 EDT; In one of the pictures I noticed a lightning transformer. I could not easily find a description via Google of how this operates. I would appreciate it if someone would point me in the correct directi; /archives//html/Towertalk/2007-08/msg00113.html (7,495 bytes)
2. Re: [TowerTalk] Sweet spot locations (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Fri, 3 Aug 2007 13:32:37 -0700 (PDT); KFI in Los Angeles can be heard during daylight in the SF bay area near the coast. KOMO in Seattle is stronger in the SF bay area than KGO is in the Seattle area. Also, KFI comes into Seattle about a; /archives//html/Towertalk/2007-08/msg00118.html (8,210 bytes)
3. Re: [TowerTalk] Sweet spot locations (score: 1): Author: "Pat Barthelow" <aa6eg@hotmail.com>; Date: Fri, 03 Aug 2007 13:42:37 -0700; Hello Geoff, It's called an Austin Ring transformer, used to isolate the AC mais that power the tower lighting circuits from the Antenna RF current. Done by providing a good AC coupling path, and not; /archives//html/Towertalk/2007-08/msg00119.html (8,427 bytes)
4. Re: [TowerTalk] Sweet spot locations (score: 1): Author: K6TFZ@aol.com; Date: Fri, 3 Aug 2007 16:43:58 EDT; I missed the extra "n" in lightning vs lighting. Yes, you are right. Now I see how it's done. For some reason, I thought that the transformer was a sensor to shut down the tx when the bolt hit but I; /archives//html/Towertalk/2007-08/msg00120.html (7,519 bytes)
5. Re: [TowerTalk] Sweet spot locations (score: 1): Author: <donovanf@starpower.net>; Date: Fri, 3 Aug 2007 17:22:37 -0400 (EDT); Dave, Many high power transmitter facilities have optical lightning detectors that almost instantaneously shut the transmitter down in the event of a nearby lightning strike or flashover. The consequ; /archives//html/Towertalk/2007-08/msg00121.html (9,044 bytes)
6. Re: [TowerTalk] Sweet spot locations (score: 1): Author: "Pat Barthelow" <aa6eg@hotmail.com>; Date: Fri, 03 Aug 2007 17:17:32 -0700; Folks: I found a few tools on the net to investigate patterns of AM antennas to see if I could see correlations with Rick's observations below. Nothing conclusive yet, but I learned a LOT using The R; /archives//html/Towertalk/2007-08/msg00130.html (13,219 bytes)

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