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Total 87 documents matching your query.

1. Topband: Central Pacific at 1400Z (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Fri, 9 Feb 2007 06:48:11 -0800 (PST)
Today, Feb 9, Signals from A35 and ZK3 were as much as 25 over S-9 from1400Z to 1407Z but dropped off within 3 minutes and were gone by 1410Z. This is right at the end of my Astronomical twilight. Po
/archives//html/Topband/2007-02/msg00067.html (6,540 bytes)

2. Topband: FK8CP SSB (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Sat, 7 Apr 2007 06:27:10 -0700 (PDT)
FK8CP was coming in very well on CW this morning and made several excursions to SSB. After listening for about an hour I caught an opening that lasted less than 5 minutes when his signal peaked well
/archives//html/Topband/2007-04/msg00055.html (7,124 bytes)

3. Topband: Where lightning strikes (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Wed, 16 May 2007 11:29:18 -0700 (PDT)
This site may be of use for topbanders I had forgotten about it until I found it through a link on another reflector. http://www.intellicast.com/Storm/Severe/Lightning.aspx 73 From Number 7 Desert Fo
/archives//html/Topband/2007-05/msg00049.html (6,547 bytes)

4. Topband: ultimate source for copperweld wire (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Thu, 29 Nov 2007 08:08:17 -0800 (PST)
Here are the people who make it. http://www.copperweldbimetallic.com/index.html 73 From Number 7 Desert Fox Remember E equals I x R is not just a good idea. It is THE LAW -- Be a better sports nut! L
/archives//html/Topband/2007-11/msg00254.html (6,960 bytes)

5. Topband: Does the answer lie here? (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Wed, 5 Dec 2007 14:46:02 -0800 (PST)
http://www.swpc.noaa.gov/tiger/Today.html I have been looking at the current data in the electron event satellite passes and there appears to be a correlation to opening on 160 when the 100 kev elect
/archives//html/Topband/2007-12/msg00062.html (6,954 bytes)

6. Topband: An experience with "DR. GAUSS" (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Sun, 30 Dec 2007 11:40:22 -0800 (PST)
My son did a Science Fair project using a "Dr. Gauss" EMF detector ( http://www.johnleemd.com/store/more_gauss.html ) and we discovered that we could detect my buried coax from the 60 Hz EMF that the
/archives//html/Topband/2007-12/msg00227.html (7,193 bytes)

7. Topband: background noise experiments (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Wed, 23 Jan 2008 10:08:47 -0800 (PST)
While I was stationed in Guam I had an opportunity to take a sailing trip to Truk Island. As an experiment I monitored the background noise on various frequencies as we travelled away from Guam where
/archives//html/Topband/2008-01/msg00165.html (7,532 bytes)

8. Topband: Friday morning foolishness (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Fri, 15 Feb 2008 06:35:50 -0800 (PST)
This morning VP6DX was 20 over nine on 1822 with very few callers. I decided to call him QRP at 5 watts and he came back and said I was a true 599 plus. So I reduced power to 1 watt and he said I was
/archives//html/Topband/2008-02/msg00083.html (6,962 bytes)

9. Topband: Here fishy fishy (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Mon, 3 Nov 2008 04:55:23 -0800 (PST)
This morning the driftnet beacons at 1814.2 and 1830.3 were especially strong although the QSB on the 1830.3 one was really deep.  There seemed to be unusually severe dopplering on it also.  I suspec
/archives//html/Topband/2008-11/msg00012.html (7,848 bytes)

10. Topband: Solar winds and topband openings (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Sat, 8 Nov 2008 04:46:35 -0800 (PST)
The recent, unusual propagation conditions on 160 seem to have a direct correlation to the unusually weak wind from the sun   http://science.nasa.gov/headlines/y2008/23sep_solarwind.htm    During the
/archives//html/Topband/2008-11/msg00060.html (7,436 bytes)

11. Topband: loading towers (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Tue, 9 Dec 2008 05:14:28 -0800 (PST)
Anyone wanting to load into a tower with some kind of HF antenna on top might want to consider creating a loaded, folded cage monopole like the Collins 237W-1X. (For a picture of one see k0hgw's list
/archives//html/Topband/2008-12/msg00110.html (7,240 bytes)

12. Topband: WOW! conditions this AM (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Tue, 7 Apr 2009 06:30:19 -0700 (PDT)
VK9GMW was 15 over 9 about 30 min before sunrise on 160 and blasting in at 25 over on 80 a few minutes later  Very quiet band and no QSB He came right back to my 2W QRP call and said I was genuine S9
/archives//html/Topband/2009-04/msg00011.html (7,035 bytes)

13. Topband: Real radios glow in the dark - and they may be free! (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Fri, 1 May 2009 07:33:32 -0700 (PDT)
We recently acquired three 1 KW broadcast transmitters for very reasonable prices. One was for $1 and we haul it off.   We found several others for free but they were too far away to make it worthwhi
/archives//html/Topband/2009-05/msg00000.html (7,250 bytes)

14. Topband: listening for rats on 160 in DM72bx south central NM (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Mon, 11 May 2009 08:36:43 -0700 (PDT)
Since I had insomnia anyway I decided to listen for the K7RAT beacons between 0800 and 1100Z   My line noise was its usual S 8 to 9 with static bursts every second or two from 5 to 10 over S-9 but I
/archives//html/Topband/2009-05/msg00052.html (8,624 bytes)

15. Topband: RATs at sunrise (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Fri, 15 May 2009 05:53:41 -0700 (PDT)
I listened to the beacons through my sunrise this morning beginning at 30 minutes before astronomical sunrise until 30 minutes after Throughout the period the 1999 beacon was significantly stronger w
/archives//html/Topband/2009-05/msg00060.html (7,425 bytes)

16. Topband: signals on 1830 (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Wed, 20 May 2009 08:38:08 -0700 (PDT)
1830 KHz is the default frequency for driftnet fishing beacons that is programmed into the units when they are manufactured The reason their signals are so erratic is that the antenna is a 8 to 12 fo
/archives//html/Topband/2009-05/msg00087.html (6,977 bytes)

17. Topband: FT5GA on 160 (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Tue, 29 Sep 2009 12:05:35 -0700 (PDT)
According to their online log they have made 1 QSO on 160 in each of zones 3,4,5,6,7   I wonder who they were     BTW from thie pictures of the operators it doesn't look like the French Foreign Legio
/archives//html/Topband/2009-09/msg00167.html (6,826 bytes)

18. Topband: interesting low band conditions may be ahead (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Tue, 29 Sep 2009 14:38:29 -0700 (PDT)
http://science.nasa.gov/headlines/y2009/29sep_cosmicrays.htm     This may explain greyline conditions and short term opening like we had a few days ago when european signals wer 20 over 9 on 160 here
/archives//html/Topband/2009-09/msg00169.html (9,604 bytes)

19. Topband: the mystery at hondo canyon (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Fri, 2 Oct 2009 06:48:41 -0700 (PDT)
Recently our local electric cooperative called on K0HGW and myself to help them find a major powerline noise source that had been plaguing them for nearly a year, resulting in numerous complaints fro
/archives//html/Topband/2009-10/msg00029.html (9,511 bytes)

20. Topband: Where the deer and the antelope (and an occasional oryx) play (score: 1)
Author: N7DF <n7df@yahoo.com>
Date: Sat, 3 Oct 2009 09:16:09 -0700 (PDT)
K0HGW and I recently acquired an interest in a 19,000 acre ranch outside Carrizozo NM We have unrestricted use of 140 acres of the ranch for permanent antennas and related uses and surface access to
/archives//html/Topband/2009-10/msg00055.html (7,544 bytes)


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