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1. Topband: Mixed RF grounds (score: 1): Author: <g4sgx@justfans.co.uk>; Date: Fri, 19 Oct 2018 21:54:37 +0100; Hi, In my limited garden I can get away with an 17 high inverted-L with 2 very bent elevated radials and very odd angles. One of them in the farmers field. It has certainly got me out but I have been; /archives//html/Topband/2018-10/msg00119.html (7,062 bytes)
2. Re: Topband: Mixed RF grounds (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Fri, 19 Oct 2018 16:21:09 -0500; Hello Iain, You heard correctly! My inverted-L with 2 elevated radial had no ground rods except on one terminal of a spark-gap lightning arrester. Description and photos at www.w0btu.com/160_meters.h; /archives//html/Topband/2018-10/msg00120.html (7,346 bytes)
3. Re: Topband: Mixed RF grounds (score: 1): Author: "Chortek, Robert L." <Robert.Chortek@berliner.com>; Date: Fri, 19 Oct 2018 22:39:54 +0000; I looked into this some years back and was advised NOT to mix ground and elevated radials. Cant recall why. My elevated radials are bent in every possible direction, and cover only about 120 degrees; /archives//html/Topband/2018-10/msg00123.html (8,797 bytes)
4. Re: Topband: Mixed RF grounds (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Fri, 19 Oct 2018 17:45:21 -0500; Iain, The FCP is a *great* design by Guy, K2AV. It's for Topbanders on a small lot, but it sounds like yours is not as small as some. From what I've read here, whether an FCP will improve your signal; /archives//html/Topband/2018-10/msg00124.html (10,329 bytes)
5. Re: Topband: Mixed RF grounds (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Fri, 19 Oct 2018 17:51:59 -0500; Hi Bob, It's because earth ground rods have a LOT more losses than even ONE /4 elevated radial of sufficient height. There's a detailed thread or three about this in the searchable archives <http://l; /archives//html/Topband/2018-10/msg00125.html (7,914 bytes)
6. Topband: Mixed RF grounds (score: 1): Author: Dennis OConnor via Topband <topband@contesting.com>; Date: Fri, 19 Oct 2018 23:54:26 +0000 (UTC); Yeah, it's counter intuitive but so is magnetism, quantum mechanics, and singularities (that's all the big words I know)The issue is that you are thinking of car batteries and your house electrical s; /archives//html/Topband/2018-10/msg00127.html (9,630 bytes)
7. Re: Topband: Mixed RF grounds (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Fri, 19 Oct 2018 19:04:08 -0500; Beautiful answer, Dennis! :-) 73, Mike www.w0btu.com _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector; /archives//html/Topband/2018-10/msg00128.html (7,887 bytes)
8. Re: Topband: Mixed RF grounds (score: 1): Author: Guy Olinger K2AV <k2av.guy@gmail.com>; Date: Fri, 19 Oct 2018 20:12:26 -0400; Hi Mike, For elevated 1/4 wave radials to work well, they need to be carrying the same RF current away from the common center point. This is to produce near net zero RF fields at the ground. 1/8 wave; /archives//html/Topband/2018-10/msg00129.html (14,085 bytes)

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