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41. Topband: S9LA (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 10 Feb 2002 08:04:15 -0500; ruining I'm not even sure that would work -- I think that station is half a megawatt on MW. At that power level, every rusty tin roof on the island is a harmonic generator/mixer, and the resulting si; /archives//html/Topband/2002-02/msg00032.html (7,034 bytes)
42. Topband: Polarisation and Power Coupling (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 23 Feb 2002 17:43:54 -0500; For what it might be worth, I recall that ON4UN told me last year at Dayton that the reason he uses elevated radials with his full-size 160m vertical, even though he has an excellent buried ground sc; /archives//html/Topband/2002-02/msg00151.html (7,948 bytes)
43. Topband: 1843 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 26 Feb 2002 08:04:05 -0500; I'm confused. Does the current voluntary bandplan refer to the lowest suppressed carrier frequency, or lowest emissions? Is the intention that the FCC-established SSB portion will start at 1843? If s; /archives//html/Topband/2002-02/msg00221.html (6,448 bytes)
44. Topband: FT-1000MP Key Clicks (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu, 17 Jan 2002 17:18:03 -0500; Interesting. I just did the same test using my TS-930 with 400 Hz filter and my unmodified Mark 5. At 500 Hz from the carrier frequency, clicks were down to below S3 from 59 +20. Acknowledging up fro; /archives//html/Topband/2002-01/msg00127.html (7,720 bytes)
45. Odp: Topband: newbie on 160 (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu, 24 Jan 2002 09:00:27 -0500; One good source of info on this is web pages dealing with MW DXing. A search on one of these will turn up various reports that the K9AY loop works best if the terminating resistor is optimized at the; /archives//html/Topband/2002-01/msg00189.html (7,384 bytes)
46. Topband: Modeling Beverage antennas (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 29 Jan 2002 21:06:24 -0500; I'm having trouble coming up with a Beverage model in EZNEC that performs as the books say it should. Does anyone have a properly functioning EZNEC model of a Beverage they would be willing to share; /archives//html/Topband/2002-01/msg00253.html (6,411 bytes)
47. Topband: Beverage models (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Wed, 30 Jan 2002 07:51:34 -0500; Thanks to W4ZV, K6SE and AJ1H, who passed on their successful models, as well as several others who offered modeling technique suggestions. To those who asked me to pass on the models I received, I d; /archives//html/Topband/2002-01/msg00261.html (6,397 bytes)
48. Topband: Eudora 3 and Mailman; hiding the long headers (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 23 Dec 2001 00:57:00 -0500; Thanks to Tim Miller, who sent me info on a simple fix for the very long list header that Eudora 3 (including Eudora Light) displays on messages from the Mailman mailing list software. I'm passing th; /archives//html/Topband/2001-12/msg00094.html (7,654 bytes)
49. Topband: Merry Christmas! (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Tue, 25 Dec 2001 09:13:25 -0500; Hate to be a discordant voice, but I have found it crashes 'way too often, and doesn't coexist at all well with my McAfee VirusScan. Guess I'm back to scanning for spam the old way, which is too bad,; /archives//html/Topband/2001-12/msg00103.html (7,563 bytes)
50. Topband: Shunt feed tap point and resulting radiation pattern (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 30 Dec 2001 14:40:18 -0500; For a given shunt fed tower, mast, antennas, radial field, etc., is it a good generalization to assume that the only free variable in determining the radiation pattern shape and strength is the heigh; /archives//html/Topband/2001-12/msg00176.html (7,028 bytes)
51. Topband: K2ZJ beverage box w/preamp (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 02 Nov 2001 13:33:03 -0500; What's the group assessment of this box for use with a small RX antenna like a K9AY loop? I have one and have used it with a couple that never worked well, but don't know if it was something to do wi; /archives//html/Topband/2001-11/msg00008.html (6,492 bytes)
52. Topband: Locating Noise Sources (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 06 Oct 2001 17:15:49 -0400; is much hotter than and of the others on the 2 towers.Tnx Pete NO2R I think this basically just means that your array is working, and provides a beautiful demonstration of the ability of towers and o; /archives//html/Topband/2001-10/msg00027.html (8,997 bytes)
53. Topband: Locating Noise Sources (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 07 Oct 2001 10:59:21 -0400; Yes -- go looking for winscope.exe on the net -- I don't have the URL any longer. It is freeware. 73, Pete N4ZR; /archives//html/Topband/2001-10/msg00032.html (7,307 bytes)
54. Topband: shunt feed help needed (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 07 Oct 2001 14:54:29 -0400; I'm hoping someone can help me understand what I'm seeing. Setup is a Rohn 25 tower with 3 yagis -- a short 40 at 105 ft, a C-3E at 97 ft and another C-3E at 69 feet. I tapped the tower at about 30 f; /archives//html/Topband/2001-10/msg00036.html (8,383 bytes)
55. Topband: Locating Noise Sources (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 08 Oct 2001 04:49:34 -0400; This is the URL for Winscope. as far as I can tell the only way to use it is to feed your receiver's audio into your sound card, because that's where Winscope gets the digital signals to work. Of cou; /archives//html/Topband/2001-10/msg00045.html (7,364 bytes)
56. Topband: Shunt feed foiled (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 13 Oct 2001 10:26:22 -0400; I thought my experience might be of some interest, even as a negative example. Earl, K6SE was nice enough to model my one-tower setup, using techniques that he has proven to be quite accurate in pred; /archives//html/Topband/2001-10/msg00101.html (7,785 bytes)
57. Topband: Listening to an electric fence.... (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sat, 22 Sep 2001 08:29:34 -0400; charge or a This is basically correct, but with one important refinement. Each fence charger has a timebase in it which sends a fresh pop of high voltage to the fence every second or so. If you carry; /archives//html/Topband/2001-09/msg00118.html (8,309 bytes)
58. Topband: Detecting Noise Sources (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 25 May 2001 14:13:21 -0400; I have one on loan from KA9FOX. The rx seems quite good. Its biggest drawback is the lack of a directional antenna, but it would be trivial to add an external BNC jack and rig a yagi or a Moxon recta; /archives//html/Topband/2001-05/msg00060.html (7,440 bytes)
59. Topband: Measuring ground conductivity (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Sun, 01 Apr 2001 21:14:47 -0400; Several years ago, VE2CV sent a message to the Towertalk reflector in which he talked about measuring ground conductivity by measuring the resonant frequency of a low dipole, and then tweaking ground; /archives//html/Topband/2001-04/msg00001.html (7,508 bytes)
60. Topband:Parallel vertical antennas and 160M amps (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Fri, 06 Apr 2001 02:16:04 -0400; VK6VZ: A cautionary note - NEC-2/EZNEC can give unreliable results when wires are close together (in WL). In my models of the Force 12 C-3, for example, as well as the factory's, the feedpoint values; /archives//html/Topband/2001-04/msg00012.html (8,176 bytes)

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