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1. Topband: Using an MFJ1026 (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Sat, 06 Nov 1999 04:19:52 +0000; Richard, My experience with the MFJ1026 parallels yours. It is simply worthless on 160. I've tried different sense antennas, additional preamps, and a few other things, but nothing helped with the S/; /archives//html/Topband/1999-11/msg00035.html (7,603 bytes)
2. TopBand: Re: 1830 noise (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Mon, 11 Jan 1999 01:11:41 +0000; After calibrating the S-meter in my FT1000D per the Yaesu tech manual, I ran the signal generator past it. Here's what I got using the 500 Hz filter in CW mode: S1 = -103.5 dBm S2 = -101.5 dBm S3 = -; /archives//html/Topband/1999-01/msg00105.html (9,224 bytes)
3. TopBand: 1:16 Balun Xfmr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Thu, 10 Sep 1998 22:46:46 +0100; Tom, my experiences with RX antennas over the last few days supports the isolation theory. My new Pennant was showing reasonable directivity on in-band signals, but seemed to be overly susceptible to; /archives//html/Topband/1998-09/msg00059.html (8,968 bytes)
4. TopBand: 1:16 Balun Xfmr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 11 Sep 1998 22:31:22 +0100; Yup, you got it Tom. The old standard bifilar/trifilar windings have little or no isolation between the primary and secondary. Even worse they are usually connected as an autotransformer. With the p; /archives//html/Topband/1998-09/msg00066.html (8,815 bytes)
5. TopBand: 1:16 Balun Xfmr (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 11 Sep 1998 22:50:48 +0100; Tom, I agree with your statements, but I'm not all that comfortable with the theory behind the observations yet. Rather than clutter up the reflector with theory at this time, lets just all agree tha; /archives//html/Topband/1998-09/msg00067.html (8,478 bytes)
6. TopBand: Transformers for pennants and flags (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Tue, 15 Sep 1998 22:55:54 +0100; My rather poor first pass at solving this problem (FT50-43 core with 7 turns of #29 AWG for the primary, and 28 turns of #29 AWG for the secondary, with the primary and secondary windings separated a; /archives//html/Topband/1998-09/msg00100.html (9,452 bytes)
7. TopBand: Common mode isolation (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Tue, 15 Sep 1998 23:32:20 +0100; Greg, I'm not sure that the exact same problem occurs on most unbalanced antennas such as the EWE and Beverages. However, in my experience, the same solution is valid for the problem that does seem t; /archives//html/Topband/1998-09/msg00101.html (7,615 bytes)
8. TopBand: pennants and flags (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Tue, 15 Sep 1998 23:36:38 +0100; To K6SE in paticular and everyone in general: Not to be outdone by Earl's experiments, I thought I'd share some of my own preliminary work. Over the weekend, I built and erected a rotatable "flag". I; /archives//html/Topband/1998-09/msg00102.html (9,710 bytes)
9. TopBand: Rotatable Flag (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Tue, 29 Sep 1998 03:08:13 +0100; The rotatable flag project is far enough along to share with the list members now. It's working, how well is another question. I'm still waiting for the Arizona summer to come to an end. When I can h; /archives//html/Topband/1998-09/msg00203.html (6,905 bytes)
10. TopBand: Coaxial Cable Traps (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Sun, 09 Aug 1998 00:58:46 +0100; George, The coax you want is RG-141 or RG-142, (single or double shield) same size as RG-58. It's amazing stuff. I used to routinely run 1500 watts thru it on 2 mtrs with no problem. On 160 mtrs, I'd; /archives//html/Topband/1998-08/msg00081.html (8,114 bytes)
11. TopBand: Beverages and fences (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Fri, 03 Jul 1998 00:09:48 +0100; Well the temperature is over 110 now, so it must be time to work on antennas. I have asked this question before on the "antenna" list, but didn't get much info back. Hopefully, topbanders will have m; /archives//html/Topband/1998-07/msg00006.html (8,309 bytes)
12. TopBand: Beverages and fences (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Sat, 04 Jul 1998 23:05:53 +0100; My thanks to all who replied to my question about beverages and fences. Several folks suggested putting the wires above the fence and in the fence. Let me clear up a few points. The fences in questio; /archives//html/Topband/1998-07/msg00012.html (7,779 bytes)

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