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Total 151 documents matching your query.

1. Re: Topband: Tower-attached guy wires - max length for driven tower? (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 30 Mar 2009 17:47:16 +0000
<> Use strain insulators next to where the guy wires attach to the tower. If you run over a few hundred watts peak power, series two or three insulators in a chain right at the attachment points. The
/archives//html/Topband/2009-03/msg00105.html (9,873 bytes)

2. Re: Topband: Top band conditions (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Mon, 19 Jan 2009 21:43:18 +0000
An indication of propagation on the lower frequencies these days, maybe due to the current lull in sunspots, or maybe it's my 900 ft. terminated beverage receiving antenna aimed towards Europe. Proba
/archives//html/Topband/2009-01/msg00192.html (9,514 bytes)

3. Re: Topband: Tall tower with large antenna atop (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Tue, 9 Dec 2008 22:04:13 +0000
The base impedance may be high due to top loading provided by the antenna, not necessarily due to ground losses. My tower is 127' tall, insulated at the base. At the 119' level (top guying point), I
/archives//html/Topband/2008-12/msg00121.html (9,014 bytes)

4. Re: Topband: enameled wire source (score: 1)
Author: Donald Chester <k4kyv@hotmail.com>
Date: Thu, 29 Nov 2007 17:08:07 +0000
"I am looking for a source for ground radial wire. The THHN at Lowes is a bit more than $0.09/ft for #14. Hoping to do better than that. Saw a reel of #18 at hamfest, 2000' for $95, I guess I should
/archives//html/Topband/2007-11/msg00255.html (8,438 bytes)

5. Re: Topband: Cleaning Up Large Air Variables? (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Wed, 11 Apr 2007 04:30:00 +0000
I once had a brass blade fan from1925. I didn't know it was brass. I put it in the sink and sprayed it with 409 cleaner. I thought I had ruined it. stuff was running off and lots of streaks. The 409
/archives//html/Topband/2007-04/msg00069.html (8,318 bytes)

6. Re: Topband: 160M vertical and snow (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Fri, 30 Mar 2007 16:01:44 +0000
From: VE2RYY <ve2ryy@globetrotter.net> To: topband@contesting.com Subject: Topband: 160M vertical and snow Date: Tue, 27 Mar 2007 17:29:21 +0000 Hi I am planning putting up a vertical (130ft tower) i
/archives//html/Topband/2007-03/msg00171.html (9,108 bytes)

7. Re: Topband: Pennant performance observations/issue (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Mon, 19 Mar 2007 22:42:25 +0000
From: Ralph Matheny <mathenyr@marietta.edu> As you say, the loops/flags/ are a great tool in a tight situation, as here in town with little space. Use >them all the time, even for 75 meter rag chews!
/archives//html/Topband/2007-03/msg00092.html (8,610 bytes)

8. Re: Topband: Beverage question (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Mon, 26 Feb 2007 05:09:57 +0000
My solution to the deer problem with my 900' beverage is #8 copperweld, overkill on the size and breaking strength of the insulators and anchors, and plenty of tension on the wire. I could probably u
/archives//html/Topband/2007-02/msg00278.html (8,728 bytes)

9. Re: Topband: RG-6 for beverages (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Tue, 06 Feb 2007 15:35:25 +0000
Can anyone tell me where in the USA it is available? Mine is designed for use as overhead drop cable. I bought a large spool of it at a hamfest for $10. It has a single strand of galvanised steel em
/archives//html/Topband/2007-02/msg00034.html (8,140 bytes)

10. Topband: Soldering ground radials (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Sun, 17 Dec 2006 07:23:50 +0000
For many years I have used silver alloy brazing rods that are sold in most any welding shop. They are sold for use with copper plumbing, since local codes now prohibit lead solder because of the dang
/archives//html/Topband/2006-12/msg00169.html (7,764 bytes)

11. Topband: 160 Mid Winter Lull (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Sat, 25 Nov 2006 23:01:27 +0000
Over the years I have noticed that the better conditions on 160m often occur between early November and late December. Propagation sometimes goes into the doldrums after Xmas and through the end of F
/archives//html/Topband/2006-11/msg00168.html (9,069 bytes)

12. Re: Topband: BC Station (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Mon, 06 Nov 2006 04:46:35 +0000
I heard a BC station somewhere in the vicinity of that frequency last night. It was very unstable with a rough note, and the modulation sounded more like FM than AM. A parasitic maybe? Don k4kyv ____
/archives//html/Topband/2006-11/msg00033.html (7,048 bytes)

13. Topband: LORAN still on 160? (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Mon, 06 Nov 2006 04:43:03 +0000
From: "wa4fki" <wa4fki@nc.rr.com> Please remember 160 meters is a shared band, the amateurs share this band with other services. In Region 3, the Loran system operates either on 1850 kHz or 1950 kHz,
/archives//html/Topband/2006-11/msg00031.html (8,854 bytes)

14. Re: Topband: W1AW QSY on hold (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Fri, 03 Nov 2006 01:02:01 +0000
Then where are non-DX CW QSO's supposed to take place? I try to avoid the DX window above 1825 unless working DX, and even 1820-25 is active with DX when condx are good. PSK31 and other digital mode
/archives//html/Topband/2006-11/msg00004.html (8,404 bytes)

15. Topband: Radiolocation beacon gone? (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Mon, 23 Oct 2006 00:44:50 +0000
I have noticed for the last week or so, the radiolocation beacon on 1953 kHz is missing. Let us hope it's gone for good this time. Don k4kyv __________________________________________________________
/archives//html/Topband/2006-10/msg00160.html (7,039 bytes)

16. Re: Topband: Tee Verticals (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Fri, 20 Oct 2006 16:50:39 +0000
I say that they are so closely coupled that you might just as well short the top and bottom of the oper wire line, and feed the whole thing as a vertical tee on both 80 and 160. I run open wire feed
/archives//html/Topband/2006-10/msg00138.html (9,751 bytes)

17. Re: Topband: 160-METER EXPERIMENT WILL EXPLORE MARCONI'S 1901 (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Fri, 06 Oct 2006 21:48:12 +0000
... given the frequency Marconi is likely to Newfoundland is 3 1/2 hours behind GMT. 1400-1800 is 10:30 AM to 2:30 PM Newfoundland time, or late morning through early afternoon. That's essentially hi
/archives//html/Topband/2006-10/msg00054.html (8,001 bytes)

18. Re: Topband: Base Insulators for Verticals (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Sat, 09 Sep 2006 21:06:34 +0000
Using three separate insulators, one in each leg of a guyed tower, is about the WORST possible approach. Most insulating material has excellent compressive strength, but poor tensile strength. With t
/archives//html/Topband/2006-09/msg00010.html (10,056 bytes)

19. Topband: Installing Big Grips (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Fri, 04 Aug 2006 21:59:29 +0000
I posted the following message on Towertalk, and got limited response, but I would also be interested in what some of the members of this list who have had considerable experience erecting towers wou
/archives//html/Topband/2006-08/msg00020.html (9,406 bytes)

20. Topband: Re-using Guy Grips (score: 1)
Author: "Donald Chester" <k4kyv@hotmail.com>
Date: Fri, 23 Jun 2006 23:40:23 +0000
My tower uses 3/16" guy cable. A few days ago I walked around and inspected the tower, and notice that one of the guy insulators is cracked. Don't know if it was lightning or if someone took a potsho
/archives//html/Topband/2006-06/msg00044.html (6,979 bytes)

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