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Total 18 documents matching your query.

1. [Antennaware] EZNEC - traps, coils, caps (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Tue, 21 Nov 2006 08:28:58 -0600
What do these look like in the EZNEC file? Can somebody send me the simplest files for EZNEC you have that would show: 1. loading coils inserted in he center of each leg of a short dipole (ex. 40,met
/archives//html/Antennaware/2006-11/msg00007.html (6,805 bytes)

2. [Antennaware] Model Contains Loss (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Thu, 30 Nov 2006 06:28:10 -0600
Just starting modeling. Why does a model say "Model contains Loss" in the control box when it shows very good gain in the Far Field Plot? What is causing this? Thanks es 73, de Jim KG0KP ____________
/archives//html/Antennaware/2006-11/msg00010.html (6,480 bytes)

3. Re: [Antennaware] Model Contains Loss (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Fri, 1 Dec 2006 11:40:03 -0600
1. Eznec 4 2. 3D 3. Looking for "small" VHF attic antenna with some gain that can be rotated. Attic is a mess full of braces. 4. Height = 13 ft at bottom of antenna. 5. 4 Moxon rectangles 6. Vertical
/archives//html/Antennaware/2006-12/msg00000.html (9,340 bytes)

4. [Antennaware] Phased Butternuts? (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Mon, 12 Feb 2007 08:25:01 -0600
OK guys, this is stretching it, BUT .... I have two Butternut vertical antennas (HF6V and HF9V) now that I have rebuilt the parts one I acquired. I would like to consider phasing them and expect it w
/archives//html/Antennaware/2007-02/msg00000.html (6,492 bytes)

5. Re: [Antennaware] Phased Butternuts? (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Tue, 13 Feb 2007 12:05:07 -0600
Thanks for all the great suggestions. One pointed me to an article in the Antenna Compendium #3 I am now considering building. Others commented on the efforts needed to get impedance matches on the t
/archives//html/Antennaware/2007-02/msg00009.html (7,707 bytes)

6. Re: [Antennaware] LQQking for source (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Wed, 14 Feb 2007 14:58:07 -0600
If I understand what you are looking for, our club made quite a few of them here mainly for DFing. They were used on 2 meters, no reason they couldn't be made for 220 or 440. Not pretty but functiona
/archives//html/Antennaware/2007-02/msg00011.html (8,270 bytes)

7. Re: [Antennaware] radials (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Fri, 11 May 2007 11:04:34 -0500
Take a look at L.B.Cebik's website. He has a huge amount of information on antennas and modeling. Radials are covered including graphs of number of radials vs. performance in one of his articles on t
/archives//html/Antennaware/2007-05/msg00008.html (9,647 bytes)

8. Re: [Antennaware] Construction of vertical (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Thu, 21 Jun 2007 09:32:18 -0500
Construction of the Butternut for example is by a slit across the end of the tubing of the larger piece as if one was to take a hacksaw and cut from the end into the tube lengthwise about 3/4 of an i
/archives//html/Antennaware/2007-06/msg00002.html (8,430 bytes)

9. Re: [Antennaware] Butternut radials (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Thu, 11 Oct 2007 21:58:37 -0500
You don't need as many as on the ground BUT they have to be tuned (and for each band). The discussion will be a long one and will have many varied answers. 1) Not as many(4,6,8 pick a number), 2)tune
/archives//html/Antennaware/2007-10/msg00004.html (8,314 bytes)

10. [Antennaware] Radials (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Fri, 29 Feb 2008 17:39:50 -0600
What detrimental effect would there be if radials (25 or so) laying ON the ground had their ends stuck into the ground or held down by spikes or LARGE nails since this is a high voltage point? The an
/archives//html/Antennaware/2008-02/msg00002.html (7,039 bytes)

11. Re: [Antennaware] Radials (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Sun, 2 Mar 2008 16:13:07 -0600
I wish someone could model a representation of this to see. 73, Jim ground had their ends stuck into the ground or held down by spikes or LARGE nails since this is a high voltage point? The antenna i
/archives//html/Antennaware/2008-03/msg00000.html (7,360 bytes)

12. Re: [Antennaware] Radials (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Fri, 29 Feb 2008 20:39:12 -0600
Guess I was missing some information. The radials are not 1/4 wave, they are more like 60 feet or so and I may have misled some as they are "on" the ground but that amounts to laying them out and pic
/archives//html/Antennaware/2008-03/msg00002.html (8,501 bytes)

13. Re: [Antennaware] Can't find NoAlox at Home Depot (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Fri, 11 Apr 2008 13:40:51 -0500
I have bought it there also (and I worked there for a few years after I retired).. The SKU number for the 1/2 ounce is 415-741 and it is $2.72 and the SKU for the 4 OZ is 498-101 and it sells for $5.
/archives//html/Antennaware/2008-04/msg00009.html (8,721 bytes)

14. [Antennaware] modeling feedlines- coils - traps (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Wed, 16 Apr 2008 20:44:33 -0500
My current thought obsession : Here is your assignment for next week : L.B., where is this in your modeling books? I guess I am looking for an example of a simple model with the feedline modeled. Is
/archives//html/Antennaware/2008-04/msg00017.html (7,058 bytes)

15. [Antennaware] EZnec - coils, traps, baluns, coax, laddreline ? (score: 1)
Author: "Jim Miller KG0KP" <JimMiller@STL-OnLine.Net>
Date: Sat, 14 Mar 2009 19:59:16 -0600
OK, request for ideas to get online with the EZnec. I can do dipoles, verticals, place the wires for beams, etc. BUT I ahve no idea about including loading coils, traps, or feedlines. Looking for the
/archives//html/Antennaware/2009-03/msg00008.html (11,048 bytes)

16. [Antennaware] EZNEC model for a J-Pole (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Sun, 2 Feb 2014 13:29:41 -0600
I am in Kindergarten on modeling so please excuse me for asking for an example of a J-Pole model. I have EZNEC 5+. Looking for an example of a J-Pole antenna. The aluminum one with the 3/8 rod and 1.
/archives//html/Antennaware/2014-02/msg00000.html (7,276 bytes)

17. [Antennaware] J-Pole (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Tue, 5 Aug 2014 22:32:45 -0500
OK, I know this is funny. Everyone needs a laugh once in a while. Just wondering if anyone knows the gain(lack of) for a typical J-Pole? Measured, modeled, or folklore? And, what is the theory - no g
/archives//html/Antennaware/2014-08/msg00001.html (7,206 bytes)

18. Re: [Antennaware] J-Pole (score: 1)
Author: "Jim Miller" <JimMiller@STL-OnLine.Net>
Date: Wed, 6 Aug 2014 09:56:47 -0500
Thanks everyone for the real information. J-Poles are typically good for a laugh but no actual information. 73, Jim KG0KP _______________________________________________ Antennaware mailing list Ante
/archives//html/Antennaware/2014-08/msg00005.html (7,296 bytes)

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