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Total 196 documents matching your query.

21. Re: [TowerTalk] 4el 40M KLM fiberglass rod (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 10 Oct 2016 14:07:16 +0000
Hi Simon, Next is a list of fiberglass providers, including one from Slovenia; http://www.trival.si/sl Polymec, Spain<http://www.polymec.com/><http://www.puertobalsillas.com/radio/Docu/Polymec_2015.p
/archives//html/Towertalk/2016-10/msg00083.html (11,742 bytes)

22. Re: [TowerTalk] Duo band 20/15 meter beam (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Thu, 3 Nov 2016 17:49:20 +0000
I've done that. Check next link; http://www.ea1ddo.es/Quad_Bibanda.php https://translate.googleusercontent.com/translate_c?act=url&depth=1&hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=es&tl=en&
/archives//html/Towertalk/2016-11/msg00052.html (9,977 bytes)

23. Re: [TowerTalk] FW: Antenna resonance question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Wed, 14 Dec 2016 08:17:30 +0000
Here is; http://rudys.typepad.com/files/some-notes-on-measuring-tower-resonances.pdf Some notes on measuring tower resonances - Antennas By N6LF<http://rudys.typepad.com/files/some-notes-on-measuring
/archives//html/Towertalk/2016-12/msg00184.html (10,512 bytes)

24. Re: [TowerTalk] Force 12 (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Thu, 19 Jan 2017 15:28:06 +0000
I guess this is related to the previous movement, some days ago; http://www.mfjenterprises.com/MFJ%20-%20Press%20release%20-v2.pdf 73, Maximo - EA1DDO ________________________________ De: TowerTalk <
/archives//html/Towertalk/2017-01/msg00286.html (13,993 bytes)

25. Re: [TowerTalk] Force 12 (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Thu, 19 Jan 2017 15:29:52 +0000
You can´t dance with two girls at same time... ________________________________ De: TowerTalk <towertalk-bounces@contesting.com> en nombre de Máximo EA1DDO_HK1H <ea1ddo@hotmail.com> Enviado: jueves,
/archives//html/Towertalk/2017-01/msg00287.html (15,103 bytes)

26. Re: [TowerTalk] K9YC Choke Cookbook Question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 6 Feb 2017 10:07:53 +0000
Regarding weapons of choice, I am not sure if you know this nice portable device: http://www.deepace.net/ 73, Maximo And with the easy availability of powerful test gear at relatively low cost, combi
/archives//html/Towertalk/2017-02/msg00138.html (13,550 bytes)

27. Re: [TowerTalk] Antenna model (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Thu, 23 Feb 2017 13:57:26 +0000
I have both, Eznec v6 and 4NEC2. http://www.qsl.net/4nec2/? Eznec is good to create or modify a design. But, to analyse and optimize, 4NEC2 is far better. You can get lot of charts (gain, RL, impedan
/archives//html/Towertalk/2017-02/msg00477.html (11,317 bytes)

28. Re: [TowerTalk] Cubex Mantis II (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Sat, 11 Mar 2017 17:28:12 +0000
Hi, If it is a self-supported tower, best option is to install a "lift". A top part of a guyed tower, the one where the rotator is, and install four wheels. And a couple of U shape rails along the to
/archives//html/Towertalk/2017-03/msg00128.html (13,140 bytes)

29. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Tue, 14 Mar 2017 13:10:25 +0000
Hi Jim, I've got a question about those baluns & chokes. Hopefully you can help me to see things clear. If there is no perfect balanced antenna in this planet, let's say; a 50 OHm (inverted V) dipole
/archives//html/Towertalk/2017-03/msg00160.html (10,061 bytes)

30. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 20 Mar 2017 07:12:36 +0000
Hi Jim, Below you are talking about to force to near zero the common mode currents, but I am talking about differential mode currents. Does a choke force differential mode currents to be balance? For
/archives//html/Towertalk/2017-03/msg00265.html (11,478 bytes)

31. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 20 Mar 2017 10:56:53 +0000
In my case, regarding my question earlier today, I don't need actually any choke or balun. I'm just trying to learn, the theory. Thanks 73, Maximo ________________________________ De: guyk2av@gmail.c
/archives//html/Towertalk/2017-03/msg00268.html (12,099 bytes)

32. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 20 Mar 2017 11:34:28 +0000
Guy, my question is NOT about common mode current. Is NOT about how much impedance a choke provide. My only question is to know if (and how) a "common mode choke" is able to balance different "differ
/archives//html/Towertalk/2017-03/msg00270.html (13,714 bytes)

33. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 20 Mar 2017 12:57:29 +0000
Hi Jim, thanks to come back to me. I understand your point, but... Let me try with an example. At the antenna feed point; I1 = 1 I2 = 2 I3 = 0 In this case, the choke placed at feed point, has low wo
/archives//html/Towertalk/2017-03/msg00272.html (12,436 bytes)

34. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 20 Mar 2017 15:10:13 +0000
Hi Marsh, And the currents from antenna to ground? Does them count? http://g4kno.com/antennas/balunsAndAntennas/images/Fig6.jpg [http://g4kno.com/antennas/balunsAndAntennas/images/Fig6.jpg] "Therefor
/archives//html/Towertalk/2017-03/msg00277.html (15,303 bytes)

35. Re: [TowerTalk] current balun question (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Tue, 21 Mar 2017 15:00:06 +0000
Hi Jim, I think I've got it. If I3=0, I1 & I2 are always same value. Any imbalance is always when I3 different than 0. I really appreciated your help on that. Thank you very much 73, Maximo _________
/archives//html/Towertalk/2017-03/msg00283.html (13,454 bytes)

36. [TowerTalk] Vector Network Analyzer, handheld, up to 7 GHz (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Sun, 2 Apr 2017 09:03:37 +0000
Hi all, Just in case someone is interested, I am selling my VNA; http://www.ebay.com/itm/222459622407 [http://thumbs1.ebaystatic.com/d/l225/m/mvf6UjmGhTrESW8rs8WRYsg.jpg]<http://www.ebay.com/itm/2224
/archives//html/Towertalk/2017-04/msg00016.html (7,863 bytes)

37. Re: [TowerTalk] Lightning Strikes (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 26 Jun 2017 16:03:47 +0000
Hi all, I am not sure if all of you know the new lightning protection system, deployed some time ago in Spain. Basically, they have created a lightning rod which is a big capacitor. This capacitor ha
/archives//html/Towertalk/2017-06/msg00355.html (11,215 bytes)

38. Re: [TowerTalk] Lightning Strikes (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 26 Jun 2017 17:07:06 +0000
David, I haven't test it myself, so I can't prove anything. I am just providing some useful information which is available around; http://www.tecnoprotect.com/en/references/pdce-technology According
/archives//html/Towertalk/2017-06/msg00363.html (13,214 bytes)

39. Re: [TowerTalk] Need Capacitors for Matching Network (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Mon, 14 Aug 2017 15:59:49 +0000
Alex UR4LL is where you'll find them; http://www.ur4ll.net/ 73, Maximo Russian vacuum and ceramic caps are often found on ebay. Made for combat conditions. N0UU ______________________________________
/archives//html/Towertalk/2017-08/msg00158.html (10,331 bytes)

40. Re: [TowerTalk] CM Choke (score: 1)
Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Date: Tue, 10 Oct 2017 09:15:39 +0000
Hi Carol, 43 mix works fine for CM chokes, but it depends the frequencies you need to cover. Best procedure is to use a VNA and "tune" the choke for best choke impedance over the required frequencies
/archives//html/Towertalk/2017-10/msg00089.html (8,657 bytes)

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