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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Towertalk\]\s+grounding\s+an\s+elevated\s+vertical\s*$/: 24 ]

Total 24 documents matching your query.

1. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: K4BEV@aol.com (K4BEV@aol.com)
Date: Wed, 6 Mar 2002 10:33:52 EST
Picture this, if you will: A 40 meter 1/4 wave vertical mounted on a 10 foot wood mast with 4 radials, also 10 ft up. Would you: Run a wire from the connection between the radials and the coax shield
/archives//html/Towertalk/2002-03/msg00052.html (8,093 bytes)

2. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: k4sqr@juno.com (Jim Miller)
Date: Wed, 6 Mar 2002 13:53:23 -0500
Don, K4BEV; A ground connection down the wood support to a ground rod with 33' radials will provide an excellent ground screen for the 10' high 40 meter vertical. If you are serious about performance
/archives//html/Towertalk/2002-03/msg00054.html (9,787 bytes)

3. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: k1vr@juno.com (Fred Hopengarten)
Date: Wed, 6 Mar 2002 17:15:49 -0500
<in re holding down radials> I found a local wholesale beauty supply place that sells boxes of 500 bobby pins cheap. I had it hidden among my antenna supplies until my daughter found it. Now she has
/archives//html/Towertalk/2002-03/msg00060.html (8,365 bytes)

4. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: K4IA@aol.com (K4IA@aol.com)
Date: Thu, 7 Mar 2002 08:42:20 EST
--part1_93.194027cf.29b8c83c_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit With all due respect to those who have suggested you create a ground screen in addit
/archives//html/Towertalk/2002-03/msg00069.html (13,969 bytes)

5. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Thu, 7 Mar 2002 08:15:31 -0800
This is a multi-part message in MIME format. --=_NextPart_000_0002_01C1C5B0.3FC14030 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I respectfully disagree. The ground s
/archives//html/Towertalk/2002-03/msg00071.html (18,577 bytes)

6. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: w4zw@comcast.net (W4ZW)
Date: Thu, 07 Mar 2002 13:23:22 -0500
This is a multi-part message in MIME format. --Boundary_(ID_UEhCjPvkYqDnPn+0dOjHwQ) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Remember that the two most common "verti
/archives//html/Towertalk/2002-03/msg00076.html (16,861 bytes)

7. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: wa2moe@firstinter.net (Stu Greene)
Date: Thu, 07 Mar 2002 11:48:17 -0700
--==_11992153==_.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed I own one, chimney mounted. It is not an antenna. It is a less than effective dummy load performing equally poorly on
/archives//html/Towertalk/2002-03/msg00077.html (9,621 bytes)

8. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: w4zw@comcast.net (W4ZW)
Date: Thu, 07 Mar 2002 14:10:36 -0500
This is a multi-part message in MIME format. --Boundary_(ID_6xihU+ukB1n9TXXHpc2+/A) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Sorry yours doesn't work so well, Stu. U
/archives//html/Towertalk/2002-03/msg00079.html (16,299 bytes)

9. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: jreisert@jlc.net (Joe Reisert)
Date: Thu, 07 Mar 2002 14:12:02 -0500
Jon, Just to set the record straight, the R7 is a 3/8 Wavelength design (versus the 3/16 WL you gave). 73, Joe, W1JR
/archives//html/Towertalk/2002-03/msg00080.html (12,289 bytes)

10. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: w4zw@comcast.net (W4ZW)
Date: Thu, 07 Mar 2002 14:18:17 -0500
This is a multi-part message in MIME format. --Boundary_(ID_x+sse0XrzxeFO7WHVz7Vhw) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT One correction, I meant to write that th
/archives//html/Towertalk/2002-03/msg00081.html (10,676 bytes)

11. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: K3AIR@arrl.net (Mike Lazaroff K3AIR)
Date: Thu, 7 Mar 2002 18:24:40 -0800
This is a multi-part message in MIME format. --=_NextPart_000_01F4_01C1C605.583E5260 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageI have an R7 whi
/archives//html/Towertalk/2002-03/msg00091.html (14,113 bytes)

12. [Towertalk] grounding an elevated vertical (score: 1)
Author: jljarvis@abs.adelphia.net (jljarvis)
Date: Fri, 8 Mar 2002 08:04:20 -0500
Seems to be a lot of people wading in with absolute authority on what is an "it depends" topic. What it depends upon is ground conductivity, for the most part. There was significant quantitative work
/archives//html/Towertalk/2002-03/msg00099.html (10,924 bytes)

13. [Towertalk] grounding an elevated vertical (score: 1)
Author: k4ik@subich.com (Joe Subich, K4IK)
Date: Fri, 8 Mar 2002 09:08:55 -0500
More like 80% efficiency (1 dB loss) Not according to professional field strength measurements. The key here is the existence of the original radials. They make a major difference in ground conducti
/archives//html/Towertalk/2002-03/msg00100.html (10,770 bytes)

14. [Towertalk] grounding an elevated vertical (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Sat, 9 Mar 2002 19:22:26 -0500
Actually there was no quantitative work done at all, other than models. The only data from measurements used standard FCC slope-of-ground-conductivity measurements, and they can easily be all over t
/archives//html/Towertalk/2002-03/msg00108.html (12,491 bytes)

15. [Towertalk] grounding an elevated vertical (score: 1)
Author: W4EF@dellroy.com (Mike)
Date: Sat, 9 Mar 2002 21:10:13 -0800
According to the field strength graph in N6PL's vertical antenna book, 15 1/4 wave radials under a 1/4 wave radiator would yield an efficiency ~70% of that which would be acheived using 113 radials (
/archives//html/Towertalk/2002-03/msg00109.html (14,145 bytes)

16. [Towertalk] grounding an elevated vertical (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Sun, 10 Mar 2002 07:52:33 -0500
....and 120 radials are totally useless, unless the radials are about 1/2 wl long. Efficiency effectively stops increasing at about 50 radials when the radials are 1/4 wl long, and efficiency is ver
/archives//html/Towertalk/2002-03/msg00112.html (9,374 bytes)

17. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: Tonno Vahk" <tonno.vahk@mail.ee (Tonno Vahk)
Date: Mon, 11 Mar 2002 11:48:27 +0200
This is a multi-part message in MIME format. --=_NextPart_000_00DA_01C1C8F2.A888E830 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable As far as nobody really
/archives//html/Towertalk/2002-03/msg00121.html (22,916 bytes)

18. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: K4IA@aol.com (K4IA@aol.com)
Date: Mon, 11 Mar 2002 07:21:23 EST
--part1_32.237a2562.29bdfb43_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I just don't understand how a ground screen, unconnected to the antenna does anythin
/archives//html/Towertalk/2002-03/msg00122.html (11,330 bytes)

19. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: K3BU@aol.com (K3BU@aol.com)
Date: Mon, 11 Mar 2002 10:30:30 EST
under does Ground screen prevents RF from penetrating and "reflecting" from poor ground, it shields it from the RF generated by the radiator and elevated radial(s) = better efficiency. This is analo
/archives//html/Towertalk/2002-03/msg00124.html (9,654 bytes)

20. [Towertalk] Grounding an Elevated vertical (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 11 Mar 2002 10:20:15 -0500
THREE sources of loss in a vertical system. 1) loss in the current sink, solved with elevated radials or a dense radial system. 2) E-plane penetration of the ground and resultant lossy current immedi
/archives//html/Towertalk/2002-03/msg00125.html (15,089 bytes)


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