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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Vertical\s+Question\s*$/: 38 ]

Total 38 documents matching your query.

1. [TowerTalk] Vertical Question (score: 1)
Author: ehayes@VNET.IBM.COM (ehayes@VNET.IBM.COM)
Date: Tue, 13 May 97 10:10:05 CDT
A question for the antenna gurus....I have a quarter wave 20m homebrew vertical with about 36 radials that are from 13 to 36 feet long. Antenna works fine but I want to replace it with a 40m vertical
/archives//html/Towertalk/1997-05/msg00334.html (7,300 bytes)

2. [TowerTalk] Vertical question (score: 1)
Author: Dave Sublette <k4to.dave@gmail.com>
Date: Mon, 15 Mar 2021 11:26:00 -0400
Good morning, I recently changed my elevated 160 meter quarter wave vertical with 8 full sized radials to having only 1/8th wave length radials and only four of them. It is working great. So I though
/archives//html/Towertalk/2021-03/msg00149.html (7,432 bytes)

3. Re: [TowerTalk] Vertical question (score: 1)
Author: "Patrick Greenlee" <patrick_g@windstream.net>
Date: Mon, 15 Mar 2021 15:57:13 +0000
What comes to mind is how true to reality is the model's results? If the model is relatively true to reality then most of us would likely not bother with additional radials. You said, "It is working
/archives//html/Towertalk/2021-03/msg00150.html (9,586 bytes)

4. Re: [TowerTalk] Vertical question (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Mon, 15 Mar 2021 09:09:19 -0700
I recently changed my elevated 160 meter quarter wave vertical with 8 full sized radials to having only 1/8th wave length radials and only four of When talking about radial length in wave lengths, yo
/archives//html/Towertalk/2021-03/msg00151.html (10,690 bytes)

5. Re: [TowerTalk] Vertical question (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 15 Mar 2021 15:00:27 -0400
My feeling is that modeling with verticals is less than perfect or perhaps the interpretation of results from modeling is imperfect. In 160m contests we hear signals that are poor, OK and spectacular
/archives//html/Towertalk/2021-03/msg00153.html (12,018 bytes)

6. Re: [TowerTalk] Vertical question (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Mon, 15 Mar 2021 12:25:28 -0700
It's probably more that the soil dielectric properties far from the antenna have a significant effect on vertical polarized propagation, while for horizontal polarization, the soil is basically a mir
/archives//html/Towertalk/2021-03/msg00154.html (8,773 bytes)

7. Re: [TowerTalk] Vertical question (score: 1)
Author: N4ZR <n4zr@comcast.net>
Date: Mon, 15 Mar 2021 15:52:37 -0400
This is the second allusion to 1/8 wave elevated radials that I've read, but I've been unable to find anything further, in the usual sources.  Any leads?  I have an inverted L, but really don't have
/archives//html/Towertalk/2021-03/msg00155.html (12,457 bytes)

8. Re: [TowerTalk] Vertical question (score: 1)
Author: <john@kk9a.com>
Date: Mon, 15 Mar 2021 17:34:15 -0400
I assume that you need NEC4 to accurately model a vertical and elevated radials. The original poster was using a program called Antenna Model which I never heard of. John KK9A It's probably more that
/archives//html/Towertalk/2021-03/msg00156.html (8,874 bytes)

9. Re: [TowerTalk] Vertical question (score: 1)
Author: Grant Saviers <grants2@pacbell.net>
Date: Mon, 15 Mar 2021 14:34:28 -0700
N6LF has several plots of the change in gain for elevated radials shorter than 1/4wl. For elevated, about 15% shorter then 1/4wl is the peak IIRC. WA3FET did calculations of best # & length for a giv
/archives//html/Towertalk/2021-03/msg00157.html (15,048 bytes)

10. Re: [TowerTalk] Vertical question (score: 1)
Author: "weaverwf@usermail.com" <weaverwf@usermail.com>
Date: Mon, 15 Mar 2021 17:29:13 -0400
Dave, Have you looked into WSPR for a real world study on the vertical? http://www.wsprnet.org/drupal/ I use the WSJT software for its WSPR mode: https://www.physics.princeton.edu/pulsar/k1jt/wsjtx.h
/archives//html/Towertalk/2021-03/msg00158.html (10,461 bytes)

11. Re: [TowerTalk] Vertical question (score: 1)
Author: <john@kk9a.com>
Date: Mon, 15 Mar 2021 17:42:57 -0400
I had the same small lot ground radial issue at my Aruba home but it still somewhat worked. Another option might be the K2AV single wire folded counterpoise. This is the second allusion to 1/8 wave e
/archives//html/Towertalk/2021-03/msg00159.html (8,441 bytes)

12. Re: [TowerTalk] Vertical question (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Mon, 15 Mar 2021 16:43:47 -0500
Further to Grant's comment, the N6LF info is available, free, at the N6LF web site. That series of QEX articles really should be the first stop for guys wondering about their ground system effectiven
/archives//html/Towertalk/2021-03/msg00160.html (16,042 bytes)

13. Re: [TowerTalk] Vertical question (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 15 Mar 2021 14:50:36 -0700
That series of QEX articles really should be the first stop for guys wondering about their ground system effectiveness. YES! 73, Jim K9YC _______________________________________________ _____________
/archives//html/Towertalk/2021-03/msg00161.html (9,366 bytes)

14. Re: [TowerTalk] Vertical question (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Mon, 15 Mar 2021 17:55:55 -0400
This is the second allusion to 1/8 wave elevated radials that I've read, but I've been unable to find anything further, in the usual sources. Any leads? Google found N6LF's work on elevated ground s
/archives//html/Towertalk/2021-03/msg00162.html (9,719 bytes)

15. Re: [TowerTalk] Vertical question (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Mon, 15 Mar 2021 18:39:43 -0400
And all the arm waving aside the important graph in N6LF's paper is the one on page 12 which to to the original posters conundrum about what to do with his small yard one can conclude the following:
/archives//html/Towertalk/2021-03/msg00163.html (13,359 bytes)

16. Re: [TowerTalk] Vertical question (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 15 Mar 2021 20:54:50 -0400
N6LF study was in OR (?) with good soil and on 40m. W8JI found by measurements that elevated radials (in GA) on 160m work a few db below the ground radials. His results as well as experiences of othe
/archives//html/Towertalk/2021-03/msg00170.html (20,080 bytes)

17. Re: [TowerTalk] Vertical question (score: 1)
Author: Jim Chaggaris <jimc@pwrone.com>
Date: Mon, 15 Mar 2021 20:15:49 -0500
I don't know. I'll take my elevated 40/30M vertical at 30' with 8 radials over any ground mounted vertical with 60+ radials. Been there done that. Huge difference. 73, Jim N9WW James Chaggaris Presid
/archives//html/Towertalk/2021-03/msg00171.html (19,773 bytes)

18. Re: [TowerTalk] Vertical question (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Mon, 15 Mar 2021 19:13:39 -0700
In 160m contests we hear signals that are poor, OK and spectacular. In cases I know, those OK have 30 radials and those spectacular have 100 radials. While the maximum angle radiation may be affected
/archives//html/Towertalk/2021-03/msg00173.html (10,328 bytes)

19. Re: [TowerTalk] Vertical question (score: 1)
Author: N4ZR <n4zr@comcast.net>
Date: Mon, 15 Mar 2021 22:43:01 -0400
Thank you to everyone who replied - lots of good food for thought. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your fav
/archives//html/Towertalk/2021-03/msg00174.html (8,399 bytes)

20. Re: [TowerTalk] Vertical question (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 15 Mar 2021 21:04:38 -0700
Taking the time to explore all of the work documented on his website, we see he moves interactively between modeling and the measurement of experimental antennas and radial systems. When he sees some
/archives//html/Towertalk/2021-03/msg00176.html (9,388 bytes)

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