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21. TopBand: Beverage matching (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Wed, 24 Feb 1999 20:43:00 -0500; The way I determine the correct turns ratio for my Beverage matching transformers is simple--measure the SWR. Adjusting the turns ratio for minimum SWR always produces the correct match without knowi; /archives//html/Topband/1999-02/msg00134.html (7,993 bytes)
22. TopBand: "Spitfire" antenna experience? (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Mon, 04 Jan 1999 11:57:06 -0500; Peter and others, I am the originator of the Spitfire antenna and co-author, with K1VR, of the presentation which was given last year at Dayton and now appears on the Web. K1VR has one running on 160; /archives//html/Topband/1999-01/msg00033.html (9,631 bytes)
23. TopBand: Band noise (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Wed, 06 Jan 1999 09:36:04 -0500; I've been noticing a very pronounced increase in ambient band noise from the west/southwest directions the last few mornings. It made T20FW rather marginal copy here this morning on 160. The noise al; /archives//html/Topband/1999-01/msg00048.html (6,809 bytes)
24. TopBand: WAS IT REALLY.....? (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Thu, 14 Jan 1999 09:41:50 -0500; It seems last night did produce quite a good opening between Europe and W6/W7 from around 0300Z onward. Perhaps some of our West Coast correspondents can comment, but I did hear quite a few of them m; /archives//html/Topband/1999-01/msg00122.html (8,015 bytes)
25. TopBand: XZ1 and T88 Wed morning (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Wed, 09 Dec 1998 09:44:39 -0500; XZ1N was readable (but not workable) here in MA for a few minutes just before my sunrise (1200Z). Reception was by skew path from the southwest. This is the first time I've heard them on Top Band. 73; /archives//html/Topband/1998-12/msg00089.html (7,365 bytes)
26. TopBand: Paths to XZ1N (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Sun, 13 Dec 1998 10:53:52 -0500; This morning XZ1N was actually decent copy here in MA. Not very strong but Q5. He started out best on the 315 degree Beverage around 1140Z and as sunrise approached just after 1200Z, the 270 Beverage; /archives//html/Topband/1998-12/msg00112.html (7,399 bytes)
27. TopBand: InRad FT1000MP Mod: Good for 160? (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Fri, 25 Dec 1998 17:22:43 -0500; There are 2 parts to the Inrad mod--an IF board and a capacitor for modifying the audio response. I find both very useful on 160. The IF board adds gain which improves reception with a Beverage anten; /archives//html/Topband/1998-12/msg00242.html (7,943 bytes)
28. TopBand: InRad FT1000MP Mod: Good for 160? (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Sun, 27 Dec 1998 17:02:07 -0500; I had the same experience as Earl. My TS940S actually outperformed the 1000MP when listening on my Beverages without the Inrad mod. As I stated in my earlier post, my 1000MP simply doesn't have quite; /archives//html/Topband/1998-12/msg00266.html (9,118 bytes)
29. TopBand: NCJ CQWWCW DXpedition Listing (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Tue, 24 Nov 1998 09:16:59 -0500; More on the V63 operation by K1XM, KQ1F, and WA1S: They do plan to be on 160, although I haven't seen any spots for them yet. K1XM had been consulting with me on antenna choices for this trip and he; /archives//html/Topband/1998-11/msg00161.html (7,452 bytes)
30. TopBand: Beverage question (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Mon, 26 Oct 1998 17:49:48 -0500; I have three 2-wire Beverages covering 6 directions (45, 90, 135, 225, 270, and 315 degrees). Sometimes I find a DX signal might be roughly equal from as many as 3 directions spread over 90 degrees i; /archives//html/Topband/1998-10/msg00138.html (8,706 bytes)
31. TopBand: Gray Line program needed. (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Tue, 27 Oct 1998 15:13:21 -0500; If you are referring to a program which will generate real-time maps displaying the grayline, go to: http://www.clark.net/pub/bblake/geoclock/ 73, John W1FV -- FAQ on WWW: http://www.contesting.com/t; /archives//html/Topband/1998-10/msg00146.html (6,906 bytes)
32. TopBand: VK SWBC beacon info (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Fri, 25 Sep 1998 10:22:20 -0400; Top Banders: I have recently discovered 3 SW broadcast stations located in Australia, useful for checking Top Band propagation to that area: Station Freq (kHz) Power (kW) VL8A 2310 50 VL8K 2325 50 VL; /archives//html/Topband/1998-09/msg00174.html (7,028 bytes)
33. TopBand: Umbrella Antenna (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Fri, 17 Apr 98 14:14:03 -0400; K0HA posted an inquiry about slant wire parasitic directional vertical arrays. The ARRL Antenna Compendium, Vol 4., has an article by KB8I on this concept. Also the May 1997 issue of QST has a follow; /archives//html/Topband/1998-04/msg00188.html (7,720 bytes)
34. TopBand: KZ5MM Noisy Beverage (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Fri, 6 Mar 98 22:25:18 -0500; Let me add some more fuel to this fire and simply report that I had an experience similar to Tom's with my first Beverage installation which passed within 50 feet of my phased verticals. The Beverage; /archives//html/Topband/1998-03/msg00120.html (9,430 bytes)
35. TopBand: Elevated Radials (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Wed, 18 Mar 98 14:58:34 -0500; I have had some correspondence with Roy W7EL on the subject of accuracy of the ground models in EZNEC. Roy told me that the lack of agreement between the computer models and some of the measured data; /archives//html/Topband/1998-03/msg00275.html (9,849 bytes)
36. TopBand: Re: YB0ARA/9 and SUNRISE EFFECTS (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Fri, 27 Mar 98 17:59:47 -0500; On 160 most of the long haul morning openings that I have experienced here in New England peak at sunrise +/- 10 minutes. When I worked YB0ARA/9 in February, his signal came out the noise for about 5; /archives//html/Topband/1998-03/msg00499.html (8,372 bytes)
37. TopBand: LP tonight (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Sun, 4 Jan 98 18:02:16 -0500; Top Banders: We had 1 hour of long path propagation tonight around local sunset (which is 2125Z today) in eastern MA. I heard the following stations: First, VK6VZ from 2110 to 2130Z, peaking 559. Sig; /archives//html/Topband/1998-01/msg00042.html (7,406 bytes)
38. TopBand: XW30 (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Tue, 6 Jan 98 11:31:48 -0500; No, I didn't hear or work them yet on Top Band and I don't really hold out much hope of doing so from my station but... they were audible here this morning on 80 CW on 3502.5 15 minutes AFTER my sunr; /archives//html/Topband/1998-01/msg00061.html (7,256 bytes)
39. TopBand: Folded unipole antenna study (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Wed, 21 Jan 98 18:41:58 -0500; I came across an intriguing antenna paper at http://www.dlr.com/Nabpaper.htm and thought it might be of interest to Top Banders. An abstract, taken from the Web page, is given below. AN EFFICIENCY CO; /archives//html/Topband/1998-01/msg00226.html (7,870 bytes)
40. TopBand: JA opening of the year (score: 1): Author: kaufmann@ll.mit.edu (John Kaufmann); Date: Thu, 22 Jan 98 09:37:51 -0500; This morning produced the best conditions to JA so far this season from here in eastern MA. Between 11:58Z and 12:08Z I put JA1JRK, JA1HQT, JH0INP, JH5FXP, and JA4LXY in the log. My sunrise is now 12; /archives//html/Topband/1998-01/msg00239.html (7,307 bytes)

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