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1. Topband: Elevated Radials and Interaction (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Mon, 7 Aug 2006 10:52:47 -0700 (PDT); It seems like the discussion of elevated vs ground radials can go on forever! One major issue not being discussed much, however, is the terrible interaction that can occur between elevated radials an; /archives//html/Topband/2006-08/msg00047.html (7,262 bytes)
2. Re: Topband: RG6 Coax (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Wed, 13 Sep 2006 21:30:53 -0700 (PDT); RG6 is good stuff for receive systems and personally, I use RG6 Quad, for all my low band rx systems, beverages and K9AY loop. Inside the shack, I just use a friction fit with a PL259. Since RG6 Quad; /archives//html/Topband/2006-09/msg00037.html (7,158 bytes)
3. Re: Topband: CW Pitch (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Wed, 29 Nov 2006 10:18:44 -0800 (PST); Bob: The effectiveness of the pitch setting is also dependent on the characteristics of the RX IF chain, including the filters. On my MP Field, the setting goes as low as 300 CPS. However, I have set; /archives//html/Topband/2006-11/msg00198.html (7,022 bytes)
4. Topband: Teflon in Ferrite binocular cores (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Wed, 17 Jan 2007 18:56:43 -0800 (PST); The ferrite binocular cores are conductive and can have sharp edges as I learned the hard way. It is easy to scratch the enamel off wire and cause a short. What I do instead of using tubing is I coat; /archives//html/Topband/2007-01/msg00302.html (6,693 bytes)
5. Topband: Ground system for RX four square (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Tue, 30 Jan 2007 09:57:21 -0800 (PST); Ian, take a look at Brian, K8BHZ's, Stone Hex, six element phased RX array. He developed a very innovative grounnd system that uses three, 8 foot ground rods per element that are tied together with r; /archives//html/Topband/2007-01/msg00464.html (7,193 bytes)
6. Re: Topband: Binocular Cores (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Thu, 18 Oct 2007 13:45:09 -0700 (PDT); Mike: What do you mean when you say the K9AY "failed misearably on 160?" I have a K9AY here that I use on both 160 and 80. I use a type 73 binocular core with only a 2 turn primary and 5 turn seconda; /archives//html/Topband/2007-10/msg00072.html (7,396 bytes)
7. Topband: Modification to INRAD Roofing Filter (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sat, 20 Oct 2007 11:53:41 -0700 (PDT); Those of you who have the INRAD Roofing Filter Kit in your 1000MP's might be interested in the following modification to improve the IMD numbers reported by W8JI: http://www.va3cr.net/mods/RoofingFil; /archives//html/Topband/2007-10/msg00099.html (7,574 bytes)
8. Re: Topband: Modification of the INRAD Roofing Filter Kit (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sun, 21 Oct 2007 07:32:35 -0700 (PDT); Paul: Regarding filter failures, I believe there have been a number of them out there. What happens over time is that the resonant center frequency changes over time and inserion loss increases. It i; /archives//html/Topband/2007-10/msg00110.html (7,875 bytes)
9. Topband: Recent 160 Condx (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Tue, 4 Dec 2007 17:38:06 -0800 (PST); This is only a personal perception but I do believe conditions on 160 are getting significantly better than previous years. I've been in Ohio for nine years now and the JA's are really getting strong; /archives//html/Topband/2007-12/msg00043.html (6,974 bytes)
10. Re: Topband: WD1-A (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sun, 9 Dec 2007 08:55:24 -0800 (PST); Bruce: The beverage wire that you have might NOT be WD-1A. I have checked the specifications on the internet and the most recent spec calls for 7 conductors, four are a soft copper and three are a sp; /archives//html/Topband/2007-12/msg00088.html (6,798 bytes)
11. Re: Topband: Size of K9AY Loop (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sun, 23 Dec 2007 16:28:01 -0800 (PST); I asked Gary, K9AY, this very question. Here is his response to me on Oct 3, 2007: "The loop's published size (25 feet high, +/-15 feet to the corners) is about 2/3 the maximum size for 160M. At one; /archives//html/Topband/2007-12/msg00168.html (6,928 bytes)
12. Topband: Correction_K9AY max size (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Mon, 24 Dec 2007 05:35:24 -0800 (PST); Gary's K9AY design usually is usually published with a total wire length of 85 feet as a compromise size. For a 160 only antenna, his "2/3" size coments should translate to a wire length off 126.87 f; /archives//html/Topband/2007-12/msg00170.html (7,018 bytes)
13. Topband: Overcoming QRN (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sun, 17 Feb 2008 09:24:23 -0800 (PST); The K9AY is very useful in reducing QRN. That is what I used Tuesday night/Wednesday morning to work VP6DX through the lightening crashes. Another antenna to try is a beverage on the ground (BOG). I; /archives//html/Topband/2008-02/msg00088.html (7,203 bytes)
14. Re: Topband: ND on 160 (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Wed, 23 Apr 2008 09:53:35 -0700 (PDT); If you need ND for WAS on 160, try M, W, F at 0130Z on 1888 LSB. Usually you will find the following North Dakota stations there (when standard time, they are on at 0230Z). W0ZTL, Alex; W0SPW, Howard; /archives//html/Topband/2008-04/msg00077.html (6,806 bytes)
15. Topband: Topband SSB DX (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sat, 16 Aug 2008 09:48:37 -0700 (PDT); Yes, Gedas, there is plenty of SSB DX on Topband but of course, much less than what comes up on CW. Monitor DX Summit. The main frequency seems to be 1843 Khz. Last winter I had good success into eas; /archives//html/Topband/2008-08/msg00040.html (6,853 bytes)
16. Topband: Twisting WD-1A (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Wed, 27 Aug 2008 20:58:47 -0700 (PDT); Twisting WD-1A for a reversible beverage is unecessary in my opinion. The two parallel wires are very close together and the balance is excellent. It makes a decent reversible beverage for 1.8 Mhz.; /archives//html/Topband/2008-08/msg00096.html (7,403 bytes)
17. Topband: Beverage grounds (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Thu, 30 Oct 2008 19:38:47 -0700 (PDT); At my location in Northern Ohio, I found that a good ground at both ends of a reversible beverage is extremely important. At first I used a single five foot long copper pipe at each end. My results i; /archives//html/Topband/2008-10/msg00172.html (7,455 bytes)
18. Topband: Inverted L matching problem (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Fri, 5 Dec 2008 13:10:12 -0800 (PST); Dick: Your tower with beam is interacting with the inverted L. My 80 foot tower and TH6 is resonant right around 1875 Khz and I think your setup is resonant somewhere near the 160 meter band. Your; /archives//html/Topband/2008-12/msg00057.html (7,569 bytes)
19. Re: Topband: Binocular Transformer Design (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sun, 4 Jan 2009 21:09:01 -0800 (PST); Pete: I can tell you from experience that a half-turn situation with a binocular core really screws up the balance of the transformer. I made several identical xformers and hooked them up back to bac; /archives//html/Topband/2009-01/msg00028.html (8,143 bytes)
20. Topband: South Dakota and North Dakota on 160 (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Mon, 19 Jan 2009 17:31:37 -0800 (PST); Both W0SD and KD0S were very active in the ARRL 160 Test. Look for them in the CQ160 Contest. Somestimes KJ0M is on too but much less frequently. If you need North Dakota, Alex, W0ZTL, and Dennis,; /archives//html/Topband/2009-01/msg00194.html (7,037 bytes)

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