- 21. Re: Topband: 160 meter vertical (score: 1)
- Author: "Milt Jensen" <n5ia@zia-connection.com>
- Date: Wed, 27 Aug 2003 20:09:47 -0700
- Bruce, Our 160 Meter antenna at XZ0A was 40' of Bangkok 25 (Rohn knock off), a short insulated section, then 100' of Bangkok 25. The top 30' to resonate the Ground Plane was made of three sleeved sec
- /archives//html/Topband/2003-08/msg00131.html (8,366 bytes)
- 22. Re: Topband: Fw: 25G insulators (score: 1)
- Author: "Milt Jensen" <n5ia@zia-connection.com>
- Date: Fri, 29 Aug 2003 17:19:00 -0700
- MUCH smaller bandwidth unless you want to do remote control of the shunt capacitor. It is well worth the effort (coin and sweat) to make the antenna a true Ground Plane. Milt, N5IA They thunder _____
- /archives//html/Topband/2003-08/msg00142.html (8,463 bytes)
- 23. Re: Topband: Fw: 25G insulators (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sat, 30 Aug 2003 06:34:36 -0700
- Good morning Earl and others, My experience is NOT this result. I had a full sized 1/4 WL of Rohn 25, ground mounted and grounded, that I Gamma matched. 2:1 bandwidth was 20 kHz. I converted the same
- /archives//html/Topband/2003-08/msg00151.html (9,561 bytes)
- 24. Re: Topband: QRN at VK9XG and sunrise peak (score: 1)
- Author: "Milt Jensen" <n5ia@zia-connection.com>
- Date: Wed, 5 Nov 2003 08:59:54 -0700
- the Proved consistently over a continuous 3 week period from XZ0A. The XZ sunset path to NA was there every day at a stronger level than the direct path, for a period of 1 to 2 hours. Then the path f
- /archives//html/Topband/2003-11/msg00031.html (8,182 bytes)
- 25. Re: Topband: Cone of Silence (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Tue, 9 Dec 2003 07:36:32 -0700
- Don and Tom, My understanding of the operational characteristics of the Beverage antenna is that the use of sloping terminations eliminates the requirement of special efforts to cancel the reception
- /archives//html/Topband/2003-12/msg00081.html (10,011 bytes)
- 26. Re: Topband: Cone of Silence (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Wed, 10 Dec 2003 07:27:55 -0700
- Gary, I understand also your view of the situation BUT, if this were true, then to my view entire Beverage antenna concept would be destroyed. Why? Because of the slope of a few degrees, both in the
- /archives//html/Topband/2003-12/msg00092.html (17,358 bytes)
- 27. Re: Topband: FERRITE BEADS (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Fri, 19 Dec 2003 21:12:18 -0700
- SNIP coax, SNIP My solution, relatively inexpensive but quite time consuming at the lower frequency bands, is to use 1/4 WL open sleeve baluns. I use these on 70 CM and 2 M directionals in quantity o
- /archives//html/Topband/2003-12/msg00163.html (9,940 bytes)
- 28. Re: Topband: FERRITE BEADS (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sat, 20 Dec 2003 22:38:26 -0700
- Ulrich and others that have inquired. Ther is no velocity factor involved with the sleeve balun. The coaxial feedline has no effect. The sleeve balun is like an element of the antenna and is cut acco
- /archives//html/Topband/2003-12/msg00173.html (14,018 bytes)
- 29. Re: Topband: Interference questions dog broadband over power lines-more anti-ham radio propaganda (score: 1)
- Author: "Milt Jensen" <n5ia@zia-connection.com>
- Date: Fri, 9 Jan 2004 17:23:35 -0700
- Dave, My take is that the phrase should have read "noise FLOOR analysis". That would be consistent with standard testing, before and after implementation of any new type of transmitter or modulation.
- /archives//html/Topband/2004-01/msg00109.html (10,687 bytes)
- 30. Re: Topband: strange condx last night (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sun, 25 Jan 2004 18:32:59 -0700
- A61AJ was GOOD copy here in SW NM for more than an hour but there was no way that we could break the pileup bedlam. Milt, N5IA, one of the NA5NM ops. and heard ferrites ______________________________
- /archives//html/Topband/2004-01/msg00235.html (8,364 bytes)
- 31. Re: Topband: Local noise environment (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Tue, 17 Feb 2004 07:40:36 -0700
- Doug, Mike and others, Capacitors in and of themselves do not normally cause a problem. However, at the distribution voltage level a "capacitor bank" is subject to a higher degree of possibility of b
- /archives//html/Topband/2004-02/msg00276.html (11,211 bytes)
- 32. Topband: 3B9C (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Wed, 24 Mar 2004 20:52:19 -0700
- 0100: Home from the regular work day. 0115: Alpha and MP ready. The sun is still 10 minutes high in the western sky in extreme Southwest New Mexico. 0118: Heard first ID of 3B9C on 1.822. 0130: Sig s
- /archives//html/Topband/2004-03/msg00249.html (8,799 bytes)
- 33. Re: Topband: 3B9C to KA6W (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sat, 27 Mar 2004 08:15:03 -0700
- Bill, Interesting your calculations. I knew we we near the antipode here in the Southwest US but didn't realize there was such a big difference from the other locations. According to my calculator in
- /archives//html/Topband/2004-03/msg00287.html (8,794 bytes)
- 34. Re: Topband: 3B9C propagation experiments (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sun, 28 Mar 2004 10:08:24 -0700
- Nearly identical to our experience at XZ0A sunset to NA. Cqing with nothing, then after a single CQ sequence, BOOM, there they were with multitudes of signals. Then we just followed the morning termi
- /archives//html/Topband/2004-03/msg00305.html (8,063 bytes)
- 35. Re: Topband: 3B9C to KA6W (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sun, 28 Mar 2004 10:36:59 -0700
- OK, Here is the list, compiled so far from various posts, that are in an approximate 300 mile diameter area of central and SE AZ and extreme SW NM. There may be others. N7DD, W9NGA, KJ7WY, N7US, KC7V
- /archives//html/Topband/2004-03/msg00307.html (10,884 bytes)
- 36. Re: Re: Topband: Long Path Direction!] (score: 1)
- Author: "Milt Jensen" <n5ia@zia-connection.com>
- Date: Wed, 31 Mar 2004 10:13:13 -0700
- precision I see here is rather silly, isn't it? Sure it is fun to think you may be trying to split hairs just a little too thin though. Ken, With regards to my low level experience with Beverage ante
- /archives//html/Topband/2004-03/msg00350.html (9,117 bytes)
- 37. Re: Topband: Tophat? Does it have to be at the top? (score: 1)
- Author: "Milt Jensen" <n5ia@zia-connection.com>
- Date: Tue, 8 Jun 2004 11:16:41 -0700
- My experience with using towers with large directional antennas as the "top hat" follows the line of thinking that has been expressed in this thread thus far. For example, at W7MCO ( http://www.eaars
- /archives//html/Topband/2004-06/msg00023.html (9,908 bytes)
- 38. Topband: XZ0A slide show (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Mon, 14 Jun 2004 00:26:27 -0700
- Well, we are all in the middle of summer doldrums in the northern hemisphere and very little Topband activity going on. SOOOOOOO-- I had been asked sometime back to provide a method of viewing the To
- /archives//html/Topband/2004-06/msg00046.html (8,581 bytes)
- 39. Re: Topband: Two Wire Beverage Query... (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sat, 21 Aug 2004 05:37:32 -0700
- Charlie, My personal experience at XZ0A was that the Bevs worked extremely well on the island. However, I did try one at a secluded, isolated spot along the shore where in some places at high tide th
- /archives//html/Topband/2004-08/msg00039.html (9,249 bytes)
- 40. Re: Topband: Elevated ground planes (score: 1)
- Author: "Milt Jensen, N5IA" <n5ia@zia-connection.com>
- Date: Sun, 24 Oct 2004 22:20:43 -0700
- Hi Bill, That was/is exactly the case and what has been done at my QTH since the November weekend of 1995. Prior to that I had shunt fed my 120' Rohn 25 tower. I have my home with a 65' high mulberry
- /archives//html/Topband/2004-10/msg00131.html (8,597 bytes)
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