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1. [TowerTalk] 160-meter tree test, before and after (score: 1): Author: Jon Zaimes via TowerTalk <towertalk@contesting.com>; Date: Wed, 11 Sep 2019 18:56:27 -0400; This spring I began removing 10 mature loblolly pines, around 85-90 feet tall, that surrounded my Rohn 25 driven element in a K3LR 160-meter parasitic array. When the tower was installed in 1998, the; /archives//html/Towertalk/2019-09/msg00288.html (8,374 bytes)
2. Re: [TowerTalk] 160-meter tree test, before and after (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Wed, 11 Sep 2019 16:21:27 -0700; But remember that while the parameters you measured can easily be measured in multiple ways with varying degrees of accuracy, it doesn't mean much. What matters a LOT more are variations in the magni; /archives//html/Towertalk/2019-09/msg00290.html (8,411 bytes)
3. Re: [TowerTalk] 160-meter tree test, before and after (score: 1): Author: "Ed Sawyer" <sawyered@earthlink.net>; Date: Thu, 12 Sep 2019 05:16:22 -0400; I am surprised by the comment that the phase angles could change significantly and see no value change in the complex impedance at the array input. I always see a value change at the array input poin; /archives//html/Towertalk/2019-09/msg00299.html (8,009 bytes)

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