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Total 438 documents matching your query.

321. Re: Topband: Choke Construction Info Needed (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 26 Jul 2012 16:50:40 -0400
One method of dealing with this problem, particularly if one is using an FCP, where the IMPEDANCE is higher at the feedpoint than a resonant feed, is to go to ground with a 5 meg 10 watt resistor in
/archives//html/Topband/2012-07/msg00349.html (8,497 bytes)

322. Re: Topband: Spark gaps (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sat, 28 Jul 2012 01:05:56 -0400
What is the condition of your 160m radials after the lightning strike? 73, Guy. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2012-07/msg00382.html (12,446 bytes)

323. Re: Topband: K2AV FCP with 43' vertical (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sat, 28 Jul 2012 22:13:29 -0400
Hi Jim, The FCP isolation transformer is not a balun. It does NOT have a common connection between the primary and secondary. It is NOT broadband, which is a specific goal of a balun. On the Balun De
/archives//html/Topband/2012-07/msg00389.html (8,981 bytes)

324. 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)

325. Re: Topband: First K2AV FCP in WVDXA Commissioned (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 31 Jul 2012 15:31:47 -0400
Hi, Charlie. 5-10 feet longer than quarter wave is starting to sound pretty normal. I would be interested in comment on the idea of telling people right off to start with 151 feet (46m) and prune bac
/archives//html/Topband/2012-07/msg00414.html (12,356 bytes)

326. Re: Topband: K2AV FCP with 43' vertical (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 31 Jul 2012 15:44:20 -0400
Hi, Charles, The short, short twitter answer: 43 feet is too d*mn short for 160. Do something else. Merely short answer: Yes, you can use an FCP. But... Hate to say it's the wrong question, sounds to
/archives//html/Topband/2012-07/msg00415.html (12,712 bytes)

327. 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)

328. Re: Topband: K2AV FCP with 43' vertical (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 31 Jul 2012 17:25:50 -0400
Well, If I'm getting it right, the 43' feet is being used on all bands, and there are "approved by the garden committee" kinds of issues. I don't argue with your general take in the least, but we are
/archives//html/Topband/2012-07/msg00423.html (18,003 bytes)

329. 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)

330. Re: Topband: FCP model (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 31 Jul 2012 22:01:15 -0400
For some folks a circle with an 80' radius completely contains their property. We have cases in point. The FCP is a 66 foot straight line that will fit on one edge of the property. That is a common F
/archives//html/Topband/2012-07/msg00440.html (11,257 bytes)

331. Re: Topband: K2AV FCP with 43' vertical (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 1 Aug 2012 03:51:56 -0400
It's that thing about "at the top" that probably doesn't get past the "garden committee". Folks don't really understand reactionary until you've crossed swords with the "garden committee". Maybe some
/archives//html/Topband/2012-08/msg00000.html (19,334 bytes)

332. Topband: Vertical radiator + FCP as a dipole (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 1 Aug 2012 18:59:11 -0400
The "FCP" only refers to the folded part, it's not a complete antenna. The pattern depends on what you do with the wire attached to the FCP. If it's an L instead of a straight dipole, you will get mo
/archives//html/Topband/2012-08/msg00019.html (9,340 bytes)

333. Re: Topband: K2AV FCP with 43' vertical (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 1 Aug 2012 19:01:43 -0400
Completely agree, but you didn't say how to get past the garden committee. :>) 73, Guy. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2012-08/msg00020.html (9,687 bytes)

334. Re: Topband: Vertical radiator + FCP as a dipole (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 1 Aug 2012 19:03:57 -0400
Missed an error. Resend FCP is terrible on the ground. Though lower heights will work with increasing loss, 8 feet and up is recommended. I know a few who mounted it on the back yard wooden fence whi
/archives//html/Topband/2012-08/msg00021.html (9,860 bytes)

335. Topband: Term "cancel fields", apology (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 1 Aug 2012 19:10:41 -0400
This is a non-issue, Tom. It stems from what I meant when I said "cancel fields". Apparently some considerable number, even the majority, think this phrase means cancel fields entirely. To others thi
/archives//html/Topband/2012-08/msg00022.html (10,608 bytes)

336. Re: Topband: Term "cancel fields", apology (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 2 Aug 2012 01:08:58 -0400
Hi Tom, You are very close, just a couple additional details. First, NEC4 can add up the field vectors from the various wires in the FCP and determine that in the far field, those fields add up to a
/archives//html/Topband/2012-08/msg00034.html (14,695 bytes)

337. Re: Topband: Soldering in the wild! (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sun, 5 Aug 2012 18:38:31 -0400
Then pressure has been enough to keep corrosion from between the clamped items... Thanks, Guy. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2012-08/msg00127.html (9,001 bytes)

338. Re: Topband: 160 M FCP Alternatives - Comments Invited (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 13 Aug 2012 22:01:19 -0400
A couple of things going on here. Loss to the ground from the FCP increases as you go lower. Do it as high as you can and "get away with it". That is something only you can figure out. Remember that
/archives//html/Topband/2012-08/msg00212.html (10,316 bytes)

339. Topband: 2012/13 season opening up? (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 14 Aug 2012 13:47:16 -0400
At Eu sunrise this morning, got an RBN spot from GW8IZR at 12 dB and right afterwards worked G4EIM for my first cross-pond for the season. Seems early, but I'll sure take it. Bring it on. 73, Guy. __
/archives//html/Topband/2012-08/msg00217.html (7,070 bytes)

340. Re: Topband: Summer conditions (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 15 Aug 2012 11:00:32 -0400
Topband season is kind of like marbles season when I was a kid as I remember it. It's not that you can't play marbles all those other times. Marbles season is when everybody shows up with their marbl
/archives//html/Topband/2012-08/msg00237.html (9,042 bytes)

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