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1. Topband: FCP model (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 30 Jul 2012 12:22:14 -0400; Some food for thought on this that might make limited space counterpoise systems work a little better and be easier, faster, and cheaper to install. This is just intended to get people to think about; /archives//html/Topband/2012-07/msg00404.html (9,518 bytes)
2. Re: Topband: FCP model (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Tue, 31 Jul 2012 10:19:16 -0400; I did a little more looking at the FCP system. I said this: The answer to this question is quite evident. The 66-foot wide FCP system is not even close to resonance on 160 meters. It appears the capa; /archives//html/Topband/2012-07/msg00410.html (9,389 bytes)
3. Re: Topband: FCP model (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Tue, 31 Jul 2012 09:59:29 -0700; Elegant analysis, Tom. Thanks. I looked at Guy's very well done piece in the National Contest Journal (the one timed for reading on the airplane going to Dayton) and wondered why a serious common mod; /archives//html/Topband/2012-07/msg00411.html (7,869 bytes)
4. Re: Topband: FCP model (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Tue, 31 Jul 2012 14:04:44 -0400; Thanks, not really so elegant though. Any common common mode choke will work, if the system were made resonant. The problem is the counterpoise system appears to be pretty far removed from resonance; /archives//html/Topband/2012-07/msg00412.html (9,970 bytes)
5. Re: Topband: FCP model (score: 1): Author: Guy Olinger K2AV <olinger@bellsouth.net>; Date: Tue, 31 Jul 2012 15:28:44 -0400; Hi Tom, I was hoping that you would clarify your earlier remarks. The FCP is not resonant because it is designed specifically to self-cancel fields, not to be resonant. Said another way, it's DELIBER; /archives//html/Topband/2012-07/msg00413.html (16,028 bytes)
6. Re: Topband: FCP model (score: 1): Author: "Wes Attaway $N5WA$" <wesattaway@bellsouth.net>; Date: Tue, 31 Jul 2012 14:55:10 -0500; What a wonderful test it would be for Tom and Guy to do this analysis. I would love to know the results. -- Wes Attaway (N5WA) -- 1138 Waters Edge Circle, Shreveport, LA 71106 318-797-4972 (Office) -; /archives//html/Topband/2012-07/msg00416.html (16,784 bytes)
7. Re: Topband: FCP model (score: 1): Author: "W0UCE" <w0uce@nc.rr.com>; Date: Tue, 31 Jul 2012 16:40:04 -0400; My former QTH boasted 2 K2AV Z-Slope TX/RX Top Band Antennas which are to this day KILLERS plus a 5 Element Vertical Fan over 96 1/4 wave on ground radials, three K2AV BOG RX antennas a 4 SQ receivin; /archives//html/Topband/2012-07/msg00418.html (18,553 bytes)
8. Re: Topband: FCP model (score: 1): Author: Guy Olinger K2AV <olinger@bellsouth.net>; Date: Tue, 31 Jul 2012 16:45:12 -0400; Hi, Jim Well, an inductor and a choke are TWO devices instead of one. We've all heard of KISS. As it stands now with what we recommend, the fellow has an antenna wire up in the trees connected to the; /archives//html/Topband/2012-07/msg00419.html (11,028 bytes)
9. Re: Topband: FCP model (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Tue, 31 Jul 2012 14:23:32 -0700; A simpler and more relevant test would be to start with a validated FCP installation and put some jumpers across the FCP to turn it into two multiwire conventional radials, then insert a loading coil; /archives//html/Topband/2012-07/msg00422.html (9,050 bytes)
10. Re: Topband: FCP model (score: 1): Author: "W0UCE" <w0uce@nc.rr.com>; Date: Tue, 31 Jul 2012 17:29:56 -0400; Bingo... Guy put one over the fence and outta the park with that one... Hi, Jim Well, an inductor and a choke are TWO devices instead of one. We've all heard of KISS. As it stands now with what we re; /archives//html/Topband/2012-07/msg00424.html (11,516 bytes)
11. Re: Topband: FCP model (score: 1): Author: "W0UCE" <w0uce@nc.rr.com>; Date: Tue, 31 Jul 2012 17:38:18 -0400; Physical limitations prohibiting installation of four elevated radials is one reason to use an FCP which was my situation. As to shootout type technical questions Guy is the man to answer... --Origin; /archives//html/Topband/2012-07/msg00426.html (9,205 bytes)
12. Re: Topband: FCP model (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Tue, 31 Jul 2012 14:40:42 -0700; The proposed test was for two radials occupying exactly the same physical space, each radial being half of the previous FCP. Rick N6RK _______________________________________________ UR RST IS ... ..; /archives//html/Topband/2012-07/msg00427.html (8,460 bytes)
13. Re: Topband: FCP model (score: 1): Author: Guy Olinger K2AV <olinger@bellsouth.net>; Date: Tue, 31 Jul 2012 17:55:56 -0400; There is the problem. The folds in a single wire 5/16 wave folded counterpoise are designed to cancel near fields and not radiate. Now you're saying to add hanging coils in a setting where people are; /archives//html/Topband/2012-07/msg00429.html (9,251 bytes)
14. Re: Topband: FCP model (score: 1): Author: "W0UCE" <w0uce@nc.rr.com>; Date: Tue, 31 Jul 2012 18:03:07 -0400; Constructing and installing a K2AV FCP is far less costly than wining and dining or otherwise bribing neighbors. My FCP works, my neighbors don't. There is the problem. The folds in a single wire 5/1; /archives//html/Topband/2012-07/msg00430.html (9,240 bytes)
15. Re: Topband: FCP model (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Tue, 31 Jul 2012 15:44:56 -0700; Yes, BUT -- two cheap parts I can easily build instead of one expensive one that I have to buy. An excellent ( >5K ohms resistive) common mode choke to handle legal power can be built for about $5 (1; /archives//html/Topband/2012-07/msg00431.html (9,659 bytes)
16. Re: Topband: FCP model (score: 1): Author: "W0UCE" <w0uce@nc.rr.com>; Date: Tue, 31 Jul 2012 19:13:42 -0400; One aspect of the K2AV FCP is KISS. However, experimenting with change of components and proven architecture should anyone opt to do so will produce unfavorable results. So... KISS and construct an F; /archives//html/Topband/2012-07/msg00432.html (10,839 bytes)
17. Re: Topband: FCP model (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Tue, 31 Jul 2012 16:20:22 -0700; Sure I can help. If you want, you can use a corner of my 20 acres to play in or A/B it with a vertical over the big ground screen on site. Rick N6RK _______________________________________________ UR; /archives//html/Topband/2012-07/msg00433.html (9,226 bytes)
18. Re: Topband: FCP model (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Tue, 31 Jul 2012 20:07:52 -0400; I would think if the KISS rules apply that a good approach would be 30-50 insulated ROG wires of 60-80 feet in length (radials on ground) and the grass will cover them in a few weeks, due to the VF o; /archives//html/Topband/2012-07/msg00434.html (10,318 bytes)
19. Re: Topband: FCP model (score: 1): Author: "W0UCE" <w0uce@nc.rr.com>; Date: Tue, 31 Jul 2012 20:20:15 -0400; Herb: The intent for deploying an FCP is not to replace a gold standard, near perfect, or best possible, buried, raised or on ground radial system. The K2AV allows those who, like me, are space limit; /archives//html/Topband/2012-07/msg00435.html (10,716 bytes)
20. Re: Topband: FCP model (score: 1): Author: "ZR" <zr@jeremy.mv.com>; Date: Tue, 31 Jul 2012 20:58:23 -0400; Can we please stop this adolescent love fest and get back to the basics? Does the FCP stand up to modeling to start with and how does it compare to various other 160 (or 80) verticals? I for one have; /archives//html/Topband/2012-07/msg00437.html (13,617 bytes)

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