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1. Topband: Noise Canceller, noise antennas (score: 1): Author: w7dd@msn.com (w7dd); Date: Thu, 5 Dec 2002 11:35:09 -0700; Hello All, I use both the MFJ-1026 and the JPS ANC-4. I have 12 Beverage antennas and the unused 11 antennas are available on a switch to act as "noise antennas". This makes the noise cancellers very; /archives//html/Topband/2002-12/msg00086.html (7,486 bytes)
2. Topband: Full Moon, Oct 21 (score: 1): Author: w7dd@msn.com (w7dd); Date: Thu, 17 Oct 2002 09:22:14 -0700; Hello All, The full moon will be here in a few days. Last month I had some very exciting European propagation during the full moon period. I had 31 QSO's to Europe on the days of the full moon. This; /archives//html/Topband/2002-10/msg00056.html (6,903 bytes)
3. Topband: Full Moon, Oct 21-Questions (score: 1): Author: w7dd@msn.com (w7dd); Date: Thu, 17 Oct 2002 21:42:28 -0700; Hello again, I have had several questioning how the moon could have this effect. The reflected energy(light, etc.) generated by the sun and reflected by the full moon back on to the dark ionosphere c; /archives//html/Topband/2002-10/msg00065.html (6,940 bytes)
4. Topband: Moon Effect (score: 1): Author: w7dd@msn.com (w7dd); Date: Fri, 18 Oct 2002 18:33:31 -0700; Hello All, I seem to remember experiments involving warming the ionosphere to increase short wave radio propagation. As I remember, it was called "Strat Warm". The experiment was performed by the U.S; /archives//html/Topband/2002-10/msg00074.html (6,670 bytes)
5. Topband: Moon Effect, StratWarm, HAARP (score: 1): Author: w7dd@msn.com (w7dd); Date: Sat, 19 Oct 2002 17:01:08 -0700; Hi again, I have received information from informed readers on this reflector that I mis-named the phenomena I wrote about as "Strat Warm". The correct name is HAARP (High Altitude Auroral Research P; /archives//html/Topband/2002-10/msg00084.html (6,456 bytes)
6. Topband: Full Moon " Evidence" (score: 1): Author: w7dd@msn.com (w7dd); Date: Sun, 20 Oct 2002 07:24:35 -0700; Hi All, I have some interesting evidence for you. Wolf (DF2PY) is a prominent figure on 160 meters so I looked up DF2PY on the DX Summit Database. Here is what I found when I selected any column, 160; /archives//html/Topband/2002-10/msg00089.html (6,885 bytes)
7. Topband: Full Moon " Evidence" (score: 1): Author: w7dd@msn.com (w7dd); Date: Mon, 21 Oct 2002 07:13:41 -0700; Hello Tom, That was a great response to my theory. You put a lot of time into researching the DF2PY data. I appreciate the effort. Do you think that the "good conditions" could be caused by the full; /archives//html/Topband/2002-10/msg00104.html (6,804 bytes)
8. Topband: Full Moon, NOW! (score: 1): Author: w7dd@msn.com (w7dd); Date: Tue, 22 Oct 2002 10:44:32 -0400; Hello Tom, Again, thank you for the nice reply. I have been thinking about the W1BB observation. In Arizona we get good signal strength 1 or 2 days a month(full moon?) from Europe. The rest of the ti; /archives//html/Topband/2002-10/msg00112.html (7,497 bytes)
9. Topband: Coupling between bev and other antennas (score: 1): Author: w7dd@msn.com (w7dd); Date: Sun, 8 Sep 2002 20:34:05 -0700; Using Eznec I have modeled a beverage and a 1/4 wave vertical in very close proximity and in many locations around the beverage. Eznec thinks there is no coupling. I was surprised by this but I tend; /archives//html/Topband/2002-09/msg00080.html (7,808 bytes)
10. Topband: Inverted Ground planes (score: 1): Author: w7dd@msn.com (w7dd); Date: Wed, 25 Sep 2002 11:14:33 -0700; What I like about this thread is that it forces us to think about "ground planes", "radials" and "ground screens" as separate entities which they are. Often we combine and commingle them. 73's Don; /archives//html/Topband/2002-09/msg00184.html (6,285 bytes)
11. Topband: Switching in extra antenna length (score: 1): Author: w7dd@msn.com (w7dd); Date: Tue, 2 Jul 2002 17:03:29 -0700; There is a lot of rf voltage at the top of this vertical but I think the Jennings RS-8 vacuum relay will do the trick. The control wires are the next problem. 73's, Don; /archives//html/Topband/2002-07/msg00017.html (7,858 bytes)
12. Topband: Inverted V antenna (score: 1): Author: w7dd@msn.com (w7dd); Date: Sun, 5 May 2002 08:52:57 -0700; I think we are forgetting that an Inverted V antenna is a vertical antenna and a horizontal antenna. As a vertical antenna, it is a pretty fair vertical. Don; /archives//html/Topband/2002-05/msg00043.html (6,559 bytes)
13. Topband: Inverted V antenna! (score: 1): Author: w7dd@msn.com (w7dd); Date: Mon, 6 May 2002 17:31:21 -0700; I just modeled an inverted V antenna on EZNEC. The apex height is at 87'(for an 89' tower), ends are 2 feet above ground, ground conductivity is 1.5s/m, dielectric constant is 13 and 1/4 wave element; /archives//html/Topband/2002-05/msg00069.html (6,726 bytes)
14. Topband: Inverted V Antennas (score: 1): Author: w7dd@msn.com (w7dd); Date: Wed, 8 May 2002 09:54:46 -0700; Hello everyone, I made a few comments about inverted V antennas. I joined into the conversation because the subject of polarization of an Inverted V came up during the power coupling issue. I have ha; /archives//html/Topband/2002-05/msg00075.html (6,929 bytes)
15. Topband: AGC and Static (score: 1): Author: w7dd@msn.com (w7dd); Date: Thu, 9 May 2002 17:45:30 -0700; I see several comments about AGC. I have an AGC modification I do to my TS-950SDX to help with noise crashes. I operate the AGC with only about half of its normal effect. This gives the effect of ope; /archives//html/Topband/2002-05/msg00088.html (7,444 bytes)
16. Topband: Topband Takeoff Angles & ICEPAC (score: 1): Author: w7dd@msn.com (D. Andersen); Date: Wed, 6 Mar 2002 17:27:04 -0700; There is a US Government computer program called ICEPAC that allows angles of reception and transmission to be calculated from any spot on earth to any other. Just enter the frequency, time, location; /archives//html/Topband/2002-03/msg00053.html (6,966 bytes)
17. Topband: Re: MFJ power line noise receiver or alternatives? (score: 1): Author: w7dd@msn.com (w7dd); Date: Fri, 22 Mar 2002 08:54:26 -0700; I do 90 % of my noise locating with my car AM radio. I tune it to 1710 kc and 530 kc. After I determine the direction the noise is coming from using the home antennas, I drive in that direction. I co; /archives//html/Topband/2002-03/msg00210.html (9,638 bytes)
18. Topband: Clicks (score: 1): Author: w7dd@msn.com (D. Andersen); Date: Mon, 14 Jan 2002 15:58:07 -0700; A modification I have performed on my IC-756pro noise blanker minimizes this problem. It also helps with SSB activated noise blanker splatter. It is a receiver modification. I have by-passed the filt; /archives//html/Topband/2002-01/msg00098.html (7,502 bytes)
19. Topband: One Way Propagation (score: 1): Author: w7dd@msn.com (D. Andersen); Date: Tue, 29 Jan 2002 11:44:36 -0700; I have heard that "One Way Propagation" has been found to be caused by heavy seas. The shape of the waves formed by high wind causes the phenomena. The old "over the horizon" radar is where this was; /archives//html/Topband/2002-01/msg00247.html (6,444 bytes)

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