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21. Topband: Spectran (score: 1): Author: Roger D Johnson <n1rj@adelphia.net>; Date: Tue, 13 Mar 2007 10:06:03 -0400; I noticed that quite a few folks are using Spectran to find signals in the noise of 160m. I have been trying to get Spectran to work on my computer for a long time with no luck. I am using the built-; /archives//html/Topband/2007-03/msg00043.html (6,410 bytes)
22. Re: Topband: INV. L vs Vertical (score: 1): Author: Roger D Johnson <n1rj@adelphia.net>; Date: Mon, 02 Apr 2007 09:25:59 -0400; Cristi.... I think you have fallen into a trap! MMANA is based upon the MININEC program and will NOT properly model horizontal wires close to ground. Radial systems will not affect the angle of radia; /archives//html/Topband/2007-04/msg00017.html (11,802 bytes)
23. Topband: Antenna Question (score: 1): Author: Roger D Johnson <n1rj@adelphia.net>; Date: Thu, 24 May 2007 13:59:10 -0400; I'm planning a dual band 80/160m vertical. My idea is to make the antenna 1/4 wave on 80m and switch in top loading with a vacuum relay for 160m. I'd like a sanity check on my reasoning. This will ev; /archives//html/Topband/2007-05/msg00077.html (7,279 bytes)
24. Topband: Antenna Question (score: 1): Author: Roger D Johnson <n1rj@adelphia.net>; Date: Thu, 24 May 2007 23:38:20 -0400; I want to thank all who replied. I'm just in the design stage right now. I want to have a two band vertical that will eventually be part of a 4 square array. I didn't want to use traps because of the; /archives//html/Topband/2007-05/msg00079.html (7,018 bytes)

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