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1. Topband: vertical balun (score: 1): Author: Bob Kupps via Topband <topband@contesting.com>; Date: Fri, 29 May 2015 21:13:50 -0700; Hi we have a 30m top loaded monopole with the feed point about 2m above a large ground radial field. Right now we are feeding it through a 4:1 balun (not a unun) with 12.5 ohms on the balanced side,; /archives//html/Topband/2015-05/msg00043.html (7,288 bytes)
2. Re: Topband: vertical balun (score: 1): Author: shristov <shristov@ptt.rs>; Date: Sat, 30 May 2015 06:40:14 +0200; You should get quite a reasonable SWR with no matching at all. A good high-impedance common mode choke is recommended. 73, Sinisa YT1NT, VE3EA _________________ Topband Reflector Archives - http://ww; /archives//html/Topband/2015-05/msg00044.html (6,592 bytes)
3. Topband: vertical balun (score: 1): Author: "Dr. Wolf Ostwald" <df2py@t-online.de>; Date: Sat, 30 May 2015 19:12:38 +0200; Hello Bob ! a balun is absolutely the wrong thing to use. It supposes that both sides on the balanced side have the same impedance to ground. That definitely is not the case with a vertical and a gro; /archives//html/Topband/2015-05/msg00047.html (7,897 bytes)

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