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References: [ +from:ken.d.brown@hawaiiantel.net: 23 ]

Total 23 documents matching your query.

1. Topband: Elevated Radials (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Sat, 05 Aug 2006 09:19:18 -1000
Every discussion of elevated radials versus on the ground radials I have seen, so far, just sort of ignores the difference in the length of the vertical radiator. Many of you may be fortunate enough
/archives//html/Topband/2006-08/msg00037.html (8,681 bytes)

2. Topband: K7RR SK (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Thu, 17 Aug 2006 09:16:39 -1000
The ARRL web site has announced the passing of Cliff Buttschardt, K7RR. Cliff's contributions to AMSAT are mentioned in that article and in links from it. What is not mentioned, and may be of interes
/archives//html/Topband/2006-08/msg00091.html (7,068 bytes)

3. Topband: JA operations in CQ contest (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Tue, 23 Jan 2007 18:09:26 -1000
Perhaps the JAs would like to transmit in their sliver of band at 1907.5 to 1912.5 kHz, and listen at a stated QSX frequency. When that was the only band they had, I found it much easier to work them
/archives//html/Topband/2007-01/msg00376.html (7,113 bytes)

4. Re: Topband: coil wire oxidation (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Fri, 06 Apr 2007 10:54:47 -1000
Okay, so now the wire is clean and shiny. What about the ceramic form on which the coil is wound? Isn't there now going to be a residue of silver oxide or other possibly conductive crud left between
/archives//html/Topband/2007-04/msg00049.html (8,106 bytes)

5. Re: Topband: Stub measurement error (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Wed, 05 Sep 2007 09:10:32 -1000
If you are adding a stub to your transmission line system, aren't you going to need a tee to connect it anyway? Would you not want to cut the stub to the right length with the tee included? Why would
/archives//html/Topband/2007-09/msg00019.html (7,353 bytes)

6. Topband: QSB on 160 (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Mon, 22 Oct 2007 20:30:56 -1000
Hi Dennis, I was probably the operator who QSOed you this weekend at KH6LC. I operated roughly 9 hours of the contest, and Lloyd KH6LC filled in for me when I had to take breaks. I remember a couple
/archives//html/Topband/2007-10/msg00137.html (9,890 bytes)

7. Topband: One way propagation (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Mon, 12 Nov 2007 10:04:00 -1000
Those of us who have worked with VHF, UHF and microwave radio systems, particularly those which simultaneously transmit and receive using the same antenna, are familiar with the three port device cal
/archives//html/Topband/2007-11/msg00081.html (9,117 bytes)

8. Topband: Antennas in trees (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Wed, 14 Nov 2007 18:27:03 -1000
Trees no doubt absorb some RF. Those of us who use trees as supports often do so because they are our best option. If you have towers use them, and if you have trees and no towers, by all means use t
/archives//html/Topband/2007-11/msg00115.html (8,335 bytes)

9. Topband: Velocity factor in two wire Beverages (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Thu, 22 Nov 2007 08:58:03 -1000
Hi Brent, A few additions to what Tom said, that may help clarify the situation: In a two wire, selectable direction Beverage, differential mode or transmission line mode is only used to send the sig
/archives//html/Topband/2007-11/msg00184.html (9,240 bytes)

10. Re: Topband: More - lightning protection on 4 sq (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Fri, 13 Jun 2008 17:27:53 -1000
Hi all, Sounds like you're on the right track to determine the possible effect of adding series capacitors on the relative phase and amplitudes of the currents in a four square array. The feed point
/archives//html/Topband/2008-06/msg00016.html (9,212 bytes)

11. Re: Topband: BA rigs on 160 (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Sat, 28 Jun 2008 13:51:06 -1000
I think we can all agree that signals that pollute a wide bandwidth are unwelcome. It is still possible for a signal to have some "character" without being a nuisance. A bit of chirp, warble or slig
/archives//html/Topband/2008-06/msg00078.html (7,172 bytes)

12. Re: Topband: Power (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Fri, 04 Jul 2008 09:01:42 -1000
Peter is right about this, and if we do a little bit of pondering about how much RF those law breakers might actually be generating, we'll find that they are not likely to have even 10 dB higher sig
/archives//html/Topband/2008-07/msg00026.html (8,877 bytes)

13. Topband: 1905-1915: DX Listening Window for JA DX (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Fri, 22 Aug 2008 15:55:14 -1000
JAs are allowed to transmit down around 1820 kHz now. (what is the exact allocation there?) I have not had much luck listening for JAs in the 1910 kHz area since they got the new allocation. I miss t
/archives//html/Topband/2008-08/msg00072.html (7,763 bytes)

14. Re: Topband: Interaction on shunt fed tower with 1/2 sloper? (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Thu, 02 Oct 2008 20:57:20 -1000
Hi Mike, Yes the sloper does give you something to compare to, and you can call it an A-B comparison. It is important to remember that the A of the sloper and the B of the tower is not the same as e
/archives//html/Topband/2008-10/msg00017.html (8,736 bytes)

15. Re: Topband: snow, rain static on inv-l????? (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Sat, 22 Nov 2008 11:06:05 -1000
Is there anyway to cut or eliminate all the static on an inv-L? Hi all, Rain, snow or even wind can cause a static build-up on any non-grounded conductor in the air. If that conductor is your antenna
/archives//html/Topband/2008-11/msg00162.html (8,743 bytes)

16. Re: Topband: Static build-up on non-grounded antennas (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Sat, 22 Nov 2008 19:09:29 -1000
With many T/R switching arrangements amplifier choke to ground is only connected to antenna during transmit, and only on the antenna that is used for transmit. Static noise is only bothersome during
/archives//html/Topband/2008-11/msg00167.html (7,960 bytes)

17. Re: Topband: snow, rain static on inv-l????? (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Sat, 22 Nov 2008 19:14:01 -1000
E = I * R P = E * I My 160 antenna is a folded monopole, so I don't need to use those equations. DE N6KB _______________________________________________ Topband mailing list Topband@contesting.com h
/archives//html/Topband/2008-11/msg00168.html (8,271 bytes)

18. Re: Topband: Lesson Learned (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Mon, 24 Nov 2008 23:08:10 -1000
Hi Art, I understand that the reason you want the downlead short is to prevent that small vertical section from acting as a vertical antenna with an omni-directional pattern. Of course you would lik
/archives//html/Topband/2008-11/msg00206.html (7,549 bytes)

19. Re: Topband: Lesson Learned about ground down lead wires on Beverages (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Tue, 25 Nov 2008 18:31:15 -1000
Hi Art and group, Taking the simplest example, a single wire Beverage fed with a transformer and coax, the Beverage wire, the transformer primary, the ground down lead wire and the ground are all in
/archives//html/Topband/2008-11/msg00224.html (10,149 bytes)

20. Re: [TowerTalk] Topband: Inverted L Tuning Question (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Thu, 04 Dec 2008 19:23:42 -1000
Interaction with the tower and beam may be changing the real SWR, or your instrument may be getting more RF from a near by MWBC station and giving you bad readings when the tower is connected. You ma
/archives//html/Topband/2008-12/msg00054.html (8,723 bytes)

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