- 1. Re: Topband: Necessity of a Ground Screen under a well radialedvertical (score: 1)
- Author: "Rudy Severns" <n6lf@arrl.net>
- Date: Tue, 5 Aug 2008 19:30:37 -0700
- Hi Doug, A year or so ago I posted a report on a experiment with various numbers of radials on a 160 m vertical. It's still posted on my web site, antennasbyn6lf.com (experiment #1) and you might wan
- /archives//html/Topband/2008-08/msg00008.html (8,275 bytes)
- 2. Topband: Y radials (score: 1)
- Author: "Rudy Severns" <n6lf@arrl.net>
- Date: Tue, 4 Nov 2008 09:54:40 -0800
- Some years ago I played a bit with "Y" radials and did some optimization, etc. I found that while they will work, the amount of wire saved wasn't enough to be worth the trouble. I didn't explore thes
- /archives//html/Topband/2008-11/msg00036.html (6,800 bytes)
- 3. Topband: Adjusting gamma matched grounded verticals (score: 1)
- Author: "Rudy Severns" <n6lf@arrl.net>
- Date: Thu, 16 Jul 2009 10:09:54 -0700
- What matters in an array are the relative current amplitudes and phases in the elements. On a grounded tower, fed with a shunt matching arrangement, it is possible to measure the net current in the b
- /archives//html/Topband/2009-07/msg00065.html (7,611 bytes)
- 4. Topband: Phased array books (score: 1)
- Author: "Rudy Severns" <n6lf@arrl.net>
- Date: Tue, 11 Aug 2009 09:57:42 -0700
- The phased array books mentioned in earlier notes can all be helpful but tend to be expensive and/or hard to find. There is a very nice book on arrays, "M.T. Ma, Theory and Application of Antenna Arr
- /archives//html/Topband/2009-08/msg00053.html (6,915 bytes)
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