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Total 79 documents matching your query.

1. Topband: K3BU Oktoberfest (score: 1)
Author: k3bu@optimum.net
Date: Wed, 08 Oct 2008 02:17:16 +0000 (GMT)
Yuri, K3BU is celebrating 50 years in Ham Radio and contesting and inviting you to a great party at MountainView Resort to Oktoberfest, which will be held on Columbus Day weekend, October 11-12, bigg
/archives//html/Topband/2008-10/msg00040.html (7,463 bytes)

2. Re: Topband: 2-wire Beverage (score: 1)
Author: k3bu@optimum.net
Date: Thu, 08 Jan 2009 16:45:53 +0000 (GMT)
Greg, the difference between terminating and not terminating the beverage or wave antenna is between resonant - standing wave, and non resonant - traveling wave antenna. It is better to terminate it
/archives//html/Topband/2009-01/msg00062.html (8,656 bytes)

3. Re: Topband: lower ionosphere? (score: 1)
Author: k3bu@optimum.net
Date: Sun, 11 Jan 2009 00:38:30 +0000 (GMT)
So, you are trying to imply that atmosphere/ionosphere is only lowered around equator? What magic keeps it unaffected at higher latitudes? Earth is a sphere, atmosphere/ionosphere is envelope around
/archives//html/Topband/2009-01/msg00091.html (8,401 bytes)

4. Re: Topband: 160 Meter Propagation (score: 1)
Author: k3bu@optimum.net
Date: Mon, 12 Jan 2009 03:54:20 +0000 (GMT)
The way I try to understand the "situation" and from my observations is this. Earth is a ball, squashed at the poles, with the envelope of gas (atmosphere) and when ionized - ionosphere, which propa
/archives//html/Topband/2009-01/msg00097.html (9,715 bytes)

5. Re: Topband: Beverage coax grounding (score: 1)
Author: k3bu@optimum.net
Date: Sun, 08 Feb 2009 02:49:30 +0000 (GMT)
Hi Dave, Are they close to 4 square? It might be that 4Sqr is messing up the pattern. Ideal situation would be to have Beverages on the front of 4 square. Detune the vertical elements if not doing so
/archives//html/Topband/2009-02/msg00021.html (8,038 bytes)

6. Re: Topband: Wideband x-former... (score: 1)
Author: k3bu@optimum.net
Date: Mon, 30 Mar 2009 23:47:15 +0000 (GMT)
You don't need no stinkin' ferites. Just wind about 6 turns of copper tubing coil, insert it between the base of the whip and ground, connect coax - shield to ground and center - find 50 ohm point o
/archives//html/Topband/2009-03/msg00117.html (7,704 bytes)

7. Re: Topband: electrically shortening a tall grounded tower (score: 1)
Author: k3bu@optimum.net
Date: Sat, 26 Sep 2009 14:13:42 +0000 (GMT)
How tall is the tower? There are actually benefits of having taller than 1/4 wave, up to about 1/2 wave. One way to "insulate" the tower portion is to use the "trombones" - hairpin stub with capacito
/archives//html/Topband/2009-09/msg00125.html (9,233 bytes)

8. Topband: K3BU hosting Oktoberfest (score: 1)
Author: k3bu@optimum.net
Date: Fri, 09 Oct 2009 11:31:40 +0000 (GMT)
Great chance for radio lovers and TopBanders to meet, check out the facility for future Hamfest - Conventions.Special table marked HAM will be set up.Glen Spey Oktoberfest at MountainView ReturnsHist
/archives//html/Topband/2009-10/msg00121.html (9,485 bytes)

9. Topband: CQ WW 160 m Records updated (score: 1)
Author: k3bu@optimum.net
Date: Sun, 13 Dec 2009 22:51:35 +0000 (GMT)
Howdy TopBandits! I have updated CQ WW 160m Contest records, CW and SSB. http://www.k3bu.us/cq_160_m.htm Missing are the multi op operators. Included is the new Assited Category with avalanche of "ne
/archives//html/Topband/2009-12/msg00165.html (7,399 bytes)

10. Re: Topband: WAS on 160 meters in three (3) days (score: 1)
Author: k3bu@optimum.net
Date: Mon, 14 Dec 2009 15:04:08 +0000 (GMT)
We are also keeping listings of WAS and DXCC worked during the single contest and time length. http://www.k3bu.us/was_dxcc_contest.htm Please check it out and if any additions or updates, please let
/archives//html/Topband/2009-12/msg00171.html (11,206 bytes)

11. Re: Topband: 160 Meter Propagation Webinar (score: 1)
Author: k3bu@optimum.net
Date: Thu, 21 Jan 2010 15:40:12 +0000 (GMT)
And here is the article that was way back ridiculed for daring to propose that there could be ducting happening. http://www.k3bu.us/articles.htm and click on 1980 CQ Magazine "Electromagnetic Wave P
/archives//html/Topband/2010-01/msg00177.html (8,249 bytes)

12. Re: Topband: Directional antennas (score: 1)
Author: k3bu@optimum.net
Date: Sat, 23 Jan 2010 20:50:20 +0000 (GMT)
Most of the time (frequently) they are skewed both ways, but occasionally they are not. When calling do not rely on direction of receive, but keep switching until you get the response. This applies
/archives//html/Topband/2010-01/msg00188.html (7,311 bytes)

13. Re: Topband: Magic Antenna Land (score: 1)
Author: k3bu@optimum.net
Date: Tue, 02 Mar 2010 14:29:49 +0000 (GMT)
Howdy Oval,you are one lucky SOB! Being close to salt water, ideally if on the beeeech, your best and least complicated solution is just to run two elevated radials (see Team Vertical exploits). That
/archives//html/Topband/2010-03/msg00004.html (8,623 bytes)

14. Re: Topband: Magic Antenna Land................. Thanks (score: 1)
Author: k3bu@optimum.net
Date: Wed, 03 Mar 2010 15:52:39 +0000 (GMT)
oVal has stirred up the pot of old glory days of doing crazy things, with mixture of "grey (around the ears) line" reality of moving into RF Gestapo restricted gulags and never dying RF fire in our
/archives//html/Topband/2010-03/msg00013.html (9,163 bytes)

15. Re: Topband: Why I use modeling software (score: 1)
Author: k3bu@optimum.net
Date: Mon, 08 Mar 2010 18:09:37 +0000 (GMT)
Excellent summary of what to expect from the world of modeling. Just to add few notes to illustrate the roadblocks. There was that big controversy about loaded antennas, coils etc. please see http://
/archives//html/Topband/2010-03/msg00049.html (11,200 bytes)

16. Topband: TopBanders diner ticket and/or ride from NNJ? (score: 1)
Author: k3bu@optimum.net
Date: Sun, 09 May 2010 23:30:12 +0000 (GMT)
Howdy TopBanders, if your XYL grounded you and you can't make the topbanders diner in Dayton, please let me know, I will gladly represent you. Also looking for ride or riders from NNJ Parsippany area
/archives//html/Topband/2010-05/msg00024.html (6,695 bytes)

17. Re: Topband: 160 between February and October (score: 1)
Author: k3bu@optimum.net
Date: Thu, 03 Jun 2010 01:39:31 +0000 (GMT)
Twofold "problem" - fewer stations south and direction of summer QRN also from south, around equator. We get now shorter openings in the north, but following the grey line and quiet nights offer some
/archives//html/Topband/2010-06/msg00013.html (9,565 bytes)

18. Re: Topband: K3NA Loop Array (score: 1)
Author: k3bu@optimum.net
Date: Wed, 23 Jun 2010 17:02:02 +0000 (GMT)
That is generally true, those who tried Beverages over good ground are not very pleased, probably due to the low signal levels. Vic, W1WCR (?) in his Wave Antenna Handbook describes Wave Antenna that
/archives//html/Topband/2010-06/msg00062.html (10,853 bytes)

19. Re: Topband: Beverages (score: 1)
Author: k3bu@optimum.net
Date: Tue, 13 Jul 2010 13:16:36 +0000 (GMT)
The benefit of long Beverage besides mentioned F/B is that it has sharper pattern and lower angle of the main lobe. Depending on propagation angles it can be benefit or detriment. For contester it i
/archives//html/Topband/2010-07/msg00060.html (8,876 bytes)

20. Re: Topband: Beverages (score: 1)
Author: k3bu@optimum.net
Date: Thu, 15 Jul 2010 02:19:33 +0000 (GMT)
This can be done by breaking say 1500 ft Beverage into 3 segments with two relays inserted at 500 and 1000 ft points, switching between next wire segment and termination resistance. Some pictures of
/archives//html/Topband/2010-07/msg00079.html (9,447 bytes)


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