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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Inverted\s+L\s+question\s*$/: 35 ]

Total 35 documents matching your query.

21. Re: Topband: Inverted L Question (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 30 Apr 2012 16:11:34 -0400
"and radial" is that really singular or a typo? 73, Guy. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2012-04/msg00180.html (8,073 bytes)

22. Topband: Inverted L question (score: 1)
Author: Herb Krumich <wa2fgk@yahoo.com>
Date: Mon, 24 Dec 2012 11:14:21 -0800 (PST)
I am right now using an inverted L which is spaced about 4 feet away from my tower. The vertical leg is about 85 feet. I only have 6 radials at the present time Now here is the question The horizonta
/archives//html/Topband/2012-12/msg00579.html (7,484 bytes)

23. Re: Topband: Inverted L question (score: 1)
Author: "Clive GM3POI" <gm3poi2@btinternet.com>
Date: Tue, 25 Dec 2012 11:33:33 -0500
Herb, Your best bet is to add another 50ft and make a T rather than inverted L. The L will only be of use on very local (out to 200 miles) QSOs. With a T it will remove the Horizontal and I suggest u
/archives//html/Topband/2012-12/msg00582.html (8,489 bytes)

24. Re: Topband: Inverted L question (score: 1)
Author: "N1SV" <n1sv@comcast.net>
Date: Tue, 25 Dec 2012 15:26:59 -0500
Snip: I am right now using an inverted L which is spaced about 4 feet away from my tower. The vertical leg is about 85 feet. I remember a number of years ago talking with Jeff Briggs (K1ZM) about ide
/archives//html/Topband/2012-12/msg00583.html (7,993 bytes)

25. Re: Topband: Inverted L question (score: 1)
Author: "Tom W8JI" <w8ji@w8ji.com>
Date: Wed, 26 Dec 2012 15:08:08 -0500
I am right now using an inverted L which is spaced about 4 feet away from my tower. The vertical leg is about 85 feet. I only have 6 radials at the present time Now here is the question The horizonta
/archives//html/Topband/2012-12/msg00593.html (9,249 bytes)

26. Re: Topband: Inverted L question (score: 1)
Author: "ZR" <zr@jeremy.mv.com>
Date: Wed, 26 Dec 2012 16:13:52 -0500
I am right now using an inverted L which is spaced about 4 feet away from my tower. The vertical leg is about 85 feet. I only have 6 radials at the present time Now here is the question The horizonta
/archives//html/Topband/2012-12/msg00595.html (9,353 bytes)

27. Re: Topband: Inverted L question (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 26 Dec 2012 17:40:50 -0500
Completely agree with Tom. Tom didn't elaborate on just how BAD that loss can be. Think of your L and your tower as being two windings on the same transformer. If the base of your tower is just in th
/archives//html/Topband/2012-12/msg00597.html (8,857 bytes)

28. Re: Topband: Inverted L question (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 27 Dec 2012 11:12:22 -0500
Sloper is really not the same thing as a parallel vertical wire at four feet as with the original poster. The vertical wire parallel to the tower at four feet has a much higher degree of coupling to
/archives//html/Topband/2012-12/msg00602.html (9,442 bytes)

29. Topband: Inverted L question (score: 1)
Author: Art Snapper <art@nk8x.net>
Date: Tue, 3 Feb 2015 16:55:44 -0500
I have been looking at locations on my property to install an Inverted L for 160. How important is it for the top part to be led away at a right angle? I was considering running it vertically 80ft, t
/archives//html/Topband/2015-02/msg00042.html (6,476 bytes)

30. Re: Topband: Inverted L question (score: 1)
Author: James Bennett <w6jhb@me.com>
Date: Tue, 03 Feb 2015 13:58:37 -0800
Art, from what Ive read, I understand that the non-vertical part of the Inverted L does not have to be completely horizontal - it can slope with little detriment to its radiation pattern. I have two
/archives//html/Topband/2015-02/msg00043.html (7,592 bytes)

31. Re: Topband: Inverted L question (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Tue, 3 Feb 2015 18:52:16 -0500
The most important part of an inverted L is the counterpoise, be it raised radials, buried or on-ground radials or an FCP. Be sure you can do a counterpoise well. Otherwise the counterpoise can be a
/archives//html/Topband/2015-02/msg00048.html (8,482 bytes)

32. Re: Topband: Inverted L question (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Tue, 03 Feb 2015 18:49:34 -0800
I was considering running it vertically 80ft, then about 25 feet at a 45 degree up angle and 25 feet at a 45 degree down angle, over the top of the supporting tree. That shape should work just fine,
/archives//html/Topband/2015-02/msg00052.html (8,346 bytes)

33. Topband: Inverted L Question (score: 1)
Author: Paul Dulaff via Topband <topband@contesting.com>
Date: Thu, 21 Dec 2023 15:54:15 -0500
Steve Ran a basic EZNEC model with no tower present for your 80 ft X 45 ft inverted L at 1.825 Mhz. The base impedance for this is 28.5 - j 130 ohms.  The get rid of the reactance I extended the top
/archives//html/Topband/2023-12/msg00068.html (6,869 bytes)

34. Re: Topband: Inverted L Question (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 21 Dec 2023 13:55:51 -0800
On 12/21/2023 12:54 PM, Paul Dulaff via Topband wrote: Ran a basic EZNEC model with no tower present for your 80 ft X 45 ft inverted L at 1.825 Mhz. The base impedance for this is 28.5 - j 130 ohms. 
/archives//html/Topband/2023-12/msg00069.html (8,648 bytes)

35. Re: Topband: Inverted L Question (score: 1)
Author: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Thu, 21 Dec 2023 17:21:07 -0500
FWIW, for 160 I used my old 97-foot Rohn 25 tower, with 2 tribanders and a 40M 2-el on it, shunt fed at about 50 feet.  I had a pair of 300 uf variable caps at the bottom, one in series with the feed
/archives//html/Topband/2023-12/msg00070.html (9,528 bytes)

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