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Total 74 documents matching your query.

1. Topband: heavy seas (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sat, 16 Feb 2002 08:38:00 -0500
The only literature I've found is an IEEE Ant and Prop paper in the January 1965 issue. It was a study of non-great circle paths on 12MHz, 18MHz, and 30MHz. The researchers set up a 500w transmitter
/archives//html/Topband/2002-02/msg00096.html (7,334 bytes)

2. Topband: auroral zone and pmaps (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Fri, 28 Dec 2001 22:22:36 -0500
In addition to auroral absorption, another "oh, shoot" exists with auroral activity. Intense discrete auroral forms can be an indication of significantly increased electron densities - along with the
/archives//html/Topband/2001-12/msg00162.html (8,928 bytes)

3. Topband: pmaps (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sun, 30 Dec 2001 16:41:46 -0500
In W4ZV's 29 December 2001 posting, Bill challenged that statement with: and then he quoted the text at the www.sec.noaa.gov/pmap/UsePlots.html website. Based on the actual data measured by the satel
/archives//html/Topband/2001-12/msg00178.html (7,724 bytes)

4. Topband: the effect of trees (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sun, 12 Aug 2001 09:21:23 -0500
The Technical Correpsondence column in the November 1991 issue of QST had some interesting observations by KF4IX and K4OQK. They put up two top-loaded 60ft verticals for a 160m array. One was near la
/archives//html/Topband/2001-08/msg00044.html (7,639 bytes)

5. Topband: low angle, high angle (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Mon, 23 Apr 2001 06:42:23 -0500
With respect to KL7Y's comments on propagation characteristics with the OTH radar, I think we need to be careful here. Earlier Dan said that the radar only went down to 4MHz or so (correct me if I'm
/archives//html/Topband/2001-04/msg00065.html (7,089 bytes)

6. Topband: gyro frequency (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Mon, 23 Apr 2001 21:04:52 -0500
Mauri, In the December 2000 issue of the Low Band Monitor, I explained absorption and the electron gyro frequency. It showed how absorption varied between the ordinary wave and the extraordinary wave
/archives//html/Topband/2001-04/msg00072.html (8,187 bytes)

7. Topband: YK9A QSLs (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sat, 24 Mar 2001 10:28:56 -0500
This is just a quick "thank you" to Don W2MPK for the kind words about our YK9A QSL efforts. I would be negligent (more appropriately, I would be in deep $*!#) if I didn't acknowledge the help of my
/archives//html/Topband/2001-03/msg00128.html (6,906 bytes)

8. Topband: great condx (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Wed, 21 Feb 2001 17:09:28 -0500
160m enthusiasts, I also enjoyed the good conditions on 160m during ARRL DX CW. My modest station here in northeast Indiana (1000w to inv-L and 300ft Beverages) snagged HA5JI and RW2F, among others.
/archives//html/Topband/2001-02/msg00076.html (6,584 bytes)

9. Topband: old issue of CQ (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sat, 04 Nov 2000 18:39:17 -0500
Hi, Does anyone on the reflector have the September 1975 issue of CQ? Please respond directly to me. Thanks. Carl K9LA -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contes
/archives//html/Topband/2000-11/msg00025.html (6,442 bytes)

10. Topband: D region overionization (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Mon, 30 Oct 2000 18:18:52 -0500
That's correct, high angle signals were more predominant, especially during the first night of the contest, as the lower angle signals usually required for DX contacts, were more readily absorbed by
/archives//html/Topband/2000-10/msg00180.html (7,005 bytes)

11. Topband: propagation articles (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Fri, 04 Feb 2000 12:18:06 -0800
Topbanders, The March issue of Sky & Telescope has two really good propagation-related feature articles: 1) Anatomy of an Aurora - a technical description of how auroras come to be, including a beaut
/archives//html/Topband/2000-02/msg00016.html (6,884 bytes)

12. Topband: NM7M (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Fri, 25 Feb 2000 06:29:03 -0800
I believe that two numbers are transposed in that phone number. It should be 299-8632. He still has his old e-mail, too. (bobnm7m@baker.cnw.com) Carl K9LA -- FAQ on WWW: http://www.contesting.com/top
/archives//html/Topband/2000-02/msg00169.html (6,541 bytes)

13. Topband: auroral zone (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sun, 23 Jan 2000 10:42:34 -0800
W4ZV and I have been exchanging e-mails on this subject, and indeed it is a very interesting hypothesis. What seems to contradict this, though, are the observations of this path under quiet geomagnet
/archives//html/Topband/2000-01/msg00175.html (8,414 bytes)

14. TopBand: VK9X, VK9Y (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Thu, 28 Jan 1999 17:17:23 -0800
Charlie, George, and Jerry, Good luck, guys! Carl K9LA -- FAQ on WWW: http://www.contesting.com/topband.html Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.co
/archives//html/Topband/1999-01/msg00191.html (6,349 bytes)

15. TopBand: the s-word (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Thu, 24 Dec 1998 07:13:35 -0800
Oh, no, Mr. Bill! The S-word! I agree it?s tempting to tie STRATWARMS to our DXing on 160m, but two years of IV3PRK?s log data to North America during STRATWARM months didn?t really show any correlat
/archives//html/Topband/1998-12/msg00229.html (7,318 bytes)

16. TopBand: absorption and the s-word (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sun, 27 Dec 1998 10:23:10 -0800
Everyone, The CCIR document that NM7M referred to is CCIR Report 252-2. It is titled ?CCIR Interim Method for Estimating Sky-Wave Field Strength and Transmission Loss at Frequencies Between the Appro
/archives//html/Topband/1998-12/msg00274.html (8,169 bytes)

17. TopBand: CQ WW CW operation (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Wed, 18 Nov 1998 19:18:07 -0800
CQ WW CW 160m contest ops, I plan to do a single-band 160m effort for CQ WW CW (November 28 and 29) as ZF2LA. I will be on all night for both nights. ZF sunset will be 2239 UTC and sunrise will be 11
/archives//html/Topband/1998-11/msg00107.html (7,245 bytes)

18. TopBand: ZF for CQ WW CW (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sat, 21 Nov 1998 07:19:43 -0800
160m CQ WW CW Contestors, Thanks to everyone for the responses to my posting that I will be doing a single band 160m effort for CQ WW CW as ZF2LA. I will certainly try to work everyone I can. Here ar
/archives//html/Topband/1998-11/msg00131.html (7,045 bytes)

19. TopBand: angle vs polarity (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Mon, 03 Aug 1998 21:55:25 -0700
<It is only at sunrise I find the dipoles useful, approaching or even beating a vertical. The question is WHY are they better. Is it polarity or wave angle? I suspect wave angle and probably not pola
/archives//html/Topband/1998-08/msg00045.html (8,380 bytes)

20. TopBand: IONCAP, et al (score: 1)
Author: k9la@gte.net (Carl K9LA)
Date: Sat, 04 Apr 1998 08:05:21 -0800
About a week ago, a fellow DXer said that, in his opinion, IONCAP underestimated MUFs. He cited that 12m, and even 10m, was open to EU when IONCAP predicted the MUF to be just above 21 MHz. Although
/archives//html/Topband/1998-04/msg00030.html (8,418 bytes)


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