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1. Re: Topband: Common mode chokes (score: 1): Author: Pete Smith <n4zr@comcast.net>; Date: Tue, 07 Jul 2009 17:17:47 -0400; Many coffee manufacturers now make big plastic enclosures that are about 9 inches on a side. I've often thought that you could neatly mount almost any small network in one of them, so lonmg as the li; /archives//html/Topband/2009-07/msg00029.html (9,346 bytes)
2. Re: Topband: Common mode chokes (score: 1): Author: Pete Smith <n4zr@comcast.net>; Date: Wed, 08 Jul 2009 05:44:29 -0400; Or a quick spray with plastic-compatible paint. _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband; /archives//html/Topband/2009-07/msg00031.html (8,927 bytes)
3. Re: Topband: Common mode chokes (score: 1): Author: Pete Smith <n4zr@comcast.net>; Date: Wed, 08 Jul 2009 17:29:41 -0400; I think the problem with that is that your active antenna will then be receiving a lot of crud from various sources in your ham-shack. It's amazing how much noise I get at close range from my transce; /archives//html/Topband/2009-07/msg00036.html (9,108 bytes)
4. Topband: Short inverted Ls (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Mon, 26 Mar 2018 21:40:35 -0400; I'm about to put up a 50 foot rocket launcher, and am puzzling over ways to use it to improve my low-band antenna situation. My options are: 1. Refurbish an old 18AVT-WB and ground-mount it with (fo; /archives//html/Topband/2018-03/msg00096.html (6,969 bytes)
5. Re: Topband: 160m polarization and elevation angles (score: 1): Author: Pete <n4zr@comcast.net>; Date: Sat, 31 Mar 2018 14:29:27 -0400; Does anyone know when OH8X was active on 160? The RBN archive goes back to 2009, snd it would be fairly easy to mine the archive. 73 Pete N4ZR Sent from my iPhone _________________ Topband Reflector; /archives//html/Topband/2018-03/msg00209.html (10,699 bytes)
6. Topband: Shunt feeding AB-577/621 (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Mon, 1 Oct 2018 11:47:37 -0400; I have an AB-577 with a C-3E on top, and am interested in the possibility of shunt-feeding it for 160 - 100 watts only. Anyone have any experience with doing this? Are the section-to-section joints; /archives//html/Topband/2018-10/msg00000.html (6,384 bytes)
7. Topband: WD1-A as radials (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Wed, 10 Oct 2018 07:58:41 -0400; I have a lot more 2-conductor WD1-A than I will ever need. I've been thinking I might use it as on-ground radials, but a friend has questioned whether twisted pair can be used for this. I don't kno; /archives//html/Topband/2018-10/msg00032.html (6,644 bytes)
8. Topband: elevated radials (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Sat, 20 Oct 2018 21:45:06 -0400; I am contemplating 4 elevated radials for a 160-meter inverted L. Am I correct to think that I need to resonate each pair of radials in their final location as if they were a very low dipole? -- 73,; /archives//html/Topband/2018-10/msg00159.html (6,532 bytes)
9. Topband: Which compromise receiving antenna (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Tue, 6 Nov 2018 10:40:07 -0500; I've just spent a very educational hour with Google Earth looking at my Beverage options for 160M. On a 45/225 azimuth I can only get about 215 feet. Is that even worth doing with a conventional Be; /archives//html/Topband/2018-11/msg00019.html (7,204 bytes)
10. Re: Topband: Rx splinter (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Fri, 1 Feb 2019 17:24:54 -0500; Mini-circuits also makes a passive splitter (ZFSC-2-4)that works fine for this - though any passive device will cost you 3.5-4 dB 73, Pete N4ZR Check out the Reverse Beacon Network at <http://reverse; /archives//html/Topband/2019-02/msg00026.html (7,939 bytes)
11. Topband: BOG near noisy powerline on 160 (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Fri, 8 Feb 2019 11:31:29 -0500; Recently I put down a 220' BOG, using the KD9SV hardware, including the preamp. Because of my yard's layout, the forward end of the BOG fell within about 20 feet of what the power company has identif; /archives//html/Topband/2019-02/msg00085.html (7,685 bytes)
12. Topband: KD9SV BOG (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Mon, 11 Feb 2019 11:35:24 -0500; R4ecently I posted a question on this reflector about whether my newly-installed reversible BOG can work where it is. Thanks to everyone who replied. The bottom line is, it can't, and a directive l; /archives//html/Topband/2019-02/msg00112.html (7,439 bytes)
13. Topband: KD9SV BOG (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Mon, 11 Feb 2019 11:35:03 -0500; R4ecently I posted a question on this reflector about whether my newly-installed reversible BOG can work where it is. Thanks to everyone who repliedThe bottom line is, it can't, and a directive loop; /archives//html/Topband/2019-02/msg00113.html (7,033 bytes)
14. Topband: Satisfactory fiberglass pole for K9AY loop (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Wed, 20 Feb 2019 09:15:02 -0500; Maybe 15-20 years ago, I used a very inexpensive push-up fiberglass pole to support the loops of a K9AY loop system. Alas. details and source have fled my brain, and much of what I've studied on li; /archives//html/Topband/2019-02/msg00201.html (7,499 bytes)
15. Topband: K9AY loop mast (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Wed, 20 Feb 2019 15:41:37 -0500; Thanks for all the suggestions, everyone - I wound up ordering a 28' Jackite telescoping mast, on the theory that I can nest the very thin top section or two to make it stiffer up there. Price was r; /archives//html/Topband/2019-02/msg00218.html (6,712 bytes)
16. Topband: FCP versus loaded or "T" radialsradials (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Sat, 4 May 2019 12:14:42 -0400; At the risk of setting off a food-fight, I'm interested in opinions on shortened radials (T or loaded) versus the K2AC/W0UCE folded counterpoise design. W8JI has an interesting unfinished page <www.; /archives//html/Topband/2019-05/msg00007.html (7,358 bytes)
17. Re: Topband: Wire for 2 wire BOG (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Tue, 20 Aug 2019 09:58:58 -0400; I got half a kilometer of WD1-A fieldphone wire, new on the original spool, for less than $50. It has both copper and steel strands in each of two conductors, which makes it pretty strong. I don't; /archives//html/Topband/2019-08/msg00211.html (8,617 bytes)
18. Topband: Inverted L - newbie questions (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Wed, 21 Aug 2019 11:55:41 -0400; I just put up an inverted L, with a vertical length of about 60 feet, and a total of 135 feet. It is fed through 16 turns of RG-400 on a ferrite core at the base. There are, as yet, no radials. Beca; /archives//html/Topband/2019-08/msg00229.html (7,349 bytes)
19. Re: Topband: Inverted L - newbie questions (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Wed, 21 Aug 2019 15:22:29 -0400; Jumper was 1 foot. 73, Pete N4ZR Check out the Reverse Beacon Network at <http://reversebeacon.net>, now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. Sen; /archives//html/Topband/2019-08/msg00242.html (10,139 bytes)
20. Topband: Inverted L in contact with leaves (score: 1): Author: N4ZR <n4zr@comcast.net>; Date: Thu, 29 Aug 2019 11:23:57 -0400; My inverted L is taking shape - about 60 vertical, the rest horizontal. For a couple of months anyway, it is touching a number of leaves in the vertical section. I assume that's not a concern, but; /archives//html/Topband/2019-08/msg00281.html (6,903 bytes)

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