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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Top\s+load\s+coil\s+at\s+ground\s+level\?\s*$/: 21 ]

Total 21 documents matching your query.

1. LF: Top load coil at ground level? (score: 1)
Author: Dick Rollema <[email protected]>
Date: Thu, 20 Apr 2006 11:11:21 +0200
It seems that some computers could not open the attached diagrams in my previous e-mail.. I therefore send send them again as part of the message itself. Hope this helps. 73, Dick, PA0SE Fig.1.jpg Fi
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00015.html (12,676 bytes)

2. RE: LF: Top load coil at ground level? (score: 1)
Author: Tom Gruis, EdD, KØHTF <[email protected]>
Date: Wed, 26 Apr 2006 07:02:56 -0500
Please also include me for the article! Thank you, Doc --Original Message-- From: [email protected] [mailto:[email protected]] On Behalf Of J. B. Weazle McCreath Sen
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00343.html (14,213 bytes)

3. Re: LF: Top load coil at ground level? (score: 1)
Author: "J. B. Weazle McCreath" <[email protected]>
Date: Tue, 25 Apr 2006 21:00:41 +0100
Hi Dick, Put me on the list as one who would like a copy of the article. Thanks in advance! 73, J.B., VE3EAR - VE3WZL Solar and wind powered EN93dr -- Original Message -- From: [email protected]
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00344.html (10,280 bytes)

4. Re: LF: Top load coil at ground level? (score: 1)
Author: "Peter Martinez" <[email protected]>
Date: Fri, 21 Apr 2006 21:59:03 +0100
From G3PLX: I initially used this antenna with a single vertical wire and the coil grounded to the base of the tower ground system. I think this is what you described above. There was some discussion
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00347.html (12,945 bytes)

5. Re: LF: Top load coil at ground level? (score: 1)
Author: Dexter McIntyre W4DEX <[email protected]>
Date: Fri, 21 Apr 2006 14:52:01 -0400
Incidently, Dex, have you thought about removing the wire you have labelled 'tower grounding wire' and returning the feed to the base of the tower instead? There should be no voltage between the bott
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00348.html (13,350 bytes)

6. Re: LF: Top load coil at ground level? (score: 1)
Author: "Peter Martinez" <[email protected]>
Date: Thu, 20 Apr 2006 21:23:15 +0100
From G3PLX: Jim said: This is fine, and the same as Dick's Topload3 diagram, but with the parallel wire stub replaced by coax - but in Figure 2b of the original article, the connections are different
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00349.html (13,218 bytes)

7. Re: LF: Top load coil at ground level? (score: 1)
Author: [email protected]
Date: Thu, 20 Apr 2006 14:05:05 EDT
Thanks, Nigel. I hadn't thought about WinZip's extra abilities to recognize and extract the content of files beyond the usual PKZip format. It isn't on this machine yet, but soon will be. John
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00350.html (9,214 bytes)

8. Re: LF: Top load coil at ground level? (score: 1)
Author: [email protected]
Date: Thu, 20 Apr 2006 14:00:24 EDT
In a message dated 20/04/2006 17:03:50 GMT Daylight Time, [email protected] writes: Actually, it's a propagation problem. Some mail systems don't like to handle multiple attachments, and enclosed them
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00351.html (11,051 bytes)

9. RE: LF: Top load coil at ground level? (score: 1)
Author: "james moritz" <[email protected]>
Date: Thu, 20 Apr 2006 17:29:15 +0100
Dear Peter, LF Group, ...Now I remove the two terminals of the coil and in it's place at the top of the antenna I connect one end of a length of coax, with the outer braid to the top of the antenna a
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00352.html (11,570 bytes)

10. Re: LF: Top load coil at ground level? (score: 1)
Author: [email protected]
Date: Thu, 20 Apr 2006 12:01:09 EDT
Actually, it's a propagation problem. Some mail systems don't like to handle multiple attachments, and enclosed them in a Zip file. Usually this works fine. Unfortunately, there's something about the
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00353.html (10,384 bytes)

11. Re: LF: Top load coil at ground level? (score: 1)
Author: "Peter Martinez" <[email protected]>
Date: Thu, 20 Apr 2006 17:30:58 +0100
From G3PLX: Dick's diagrams do look puzzling if you look at them literally, so I can sympathise with Jim, but try it this way... The capacitance hat is on the top. In stage 1 of the thought experimen
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00354.html (13,183 bytes)

12. Re: LF: Top load coil at ground level? (score: 1)
Author: John Andrews <[email protected]>
Date: Thu, 20 Apr 2006 10:46:45 -0400
John: Try these: http://www.w1tag.com/files/Fig.1.jpg http://www.w1tag.com/files/Fig.2.jpg JA [email protected] wrote: I'm sorry, Dick, it still doesn;t seem to be working. Can you save the files in s
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00355.html (10,470 bytes)

13. Re: LF: Top load coil at ground level? (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Thu, 20 Apr 2006 16:52:33 +0200
John, it is a "receiver end" related problem. All pics arrive fine here. 73, Rik ON7YD & OR7T John Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00356.html (10,493 bytes)

14. Re: LF: Top load coil at ground level? (score: 1)
Author: [email protected]
Date: Thu, 20 Apr 2006 10:25:19 EDT
I'm sorry, Dick, it still doesn;t seem to be working. Can you save the files in some generally usable format such as GIF or PNG and then send them? John
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00357.html (9,839 bytes)

15. Re: LF: Top load coil at ground level? (score: 1)
Author: Dexter McIntyre <[email protected]>
Date: Wed, 19 Apr 2006 16:04:31 -0400
Peter Martinez wrote: Effectively what Dick is suggesting is having the coil physically at the bottom where it can be housed and adjusted, but electrically at the top. This is done by extending two w
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00358.html (12,218 bytes)

16. Re: LF: Top load coil at ground level? (score: 1)
Author: "Peter Martinez" <[email protected]>
Date: Wed, 19 Apr 2006 21:03:13 +0100
From G3PLX: Effectively what Dick is suggesting is having the coil physically at the bottom where it can be housed and adjusted, but electrically at the top. This is done by extending two wires down
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00359.html (10,939 bytes)

17. Re: LF: Top load coil at ground level? (score: 1)
Author: "Alexander S. Yurkov" <[email protected]>
Date: Thu, 20 Apr 2006 00:29:25 +0000 (GMT)
Hi, Dick. It is nice idea! Certanly this should work. Elevated coil is better then coil near the ground, not too much better but better anyway. And a tuning problem gone if one use fig.2. This means
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00360.html (12,809 bytes)

18. Re: LF: Top load coil at ground level? (score: 1)
Author: [email protected]
Date: Wed, 19 Apr 2006 13:20:35 EDT
Dick, Could you send that diagram directly, please? AOL cannot handle multiple file attachments. What I got was a zipped version containing two cryptic MIME files. Thanks. John Davis
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00361.html (10,523 bytes)

19. Re: LF: Top load coil at ground level? (score: 1)
Author: Dick Rollema <[email protected]>
Date: Wed, 19 Apr 2006 17:33:27 +0200
Rik, ON 7YD wrote At 16:29 19-4-06, you wrote: Hi Dick, I guess you are right with "The stub functions as a transmission line to transfer the inductive reactance of the coil to the top of the radiato
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00362.html (13,128 bytes)

20. Re: LF: Top load coil at ground level? (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Wed, 19 Apr 2006 16:29:49 +0200
Hi Dick, I guess you are right with "The stub functions as a transmission line to transfer the inductive reactance of the coil to the top of the radiator." But I am afraid that for any reasonable ant
/rsgb_lf_group-archives/html/rsgb_lf_group/2006-04/msg00363.html (12,118 bytes)


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