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References: [ +from:turnbull@net1.ie: 83 ]

Total 83 documents matching your query.

41. Re: [TowerTalk] Thoughts on Tower lifting cable broken strands (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Thu, 22 Aug 2013 12:05:56 -0500
Ray, You should be able to pull the tower sections in and out using external winches or a come along with steel cable or chain external to your sky needle. Do not scrap it at least try and do a repai
/archives//html/Towertalk/2013-08/msg00547.html (13,208 bytes)

42. Re: [TowerTalk] Servicing an MFJ 259B (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Thu, 28 Aug 2014 12:43:33 -0500
Gentlemen, The epitaph for MFJ is a bit unfair. They have kept many products available which would otherwise have just disappeared. MFJ has also brought out a number of useful products I their own ri
/archives//html/Towertalk/2014-08/msg00522.html (8,844 bytes)

43. Re: [TowerTalk] Servicing an MFJ 259B (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Thu, 28 Aug 2014 16:09:28 -0500
Gentlemen, I hope my previous comments were not dismissive of a problem with repairs. It does seem that MFJ has an overloaded repair department which is not particularly well managed. They could turn
/archives//html/Towertalk/2014-08/msg00532.html (13,267 bytes)

44. Re: [TowerTalk] Servicing an MFJ 259B (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Sat, 30 Aug 2014 09:58:22 -0500
Herb, I pray that my recent posts did not demean your legitimate complaint. This type of response to a customer is shoddy at best. One can only hope that alarm bells ring at MFJ. 73 Doug EI2CN After
/archives//html/Towertalk/2014-08/msg00568.html (17,746 bytes)

45. Re: [TowerTalk] MFJ repairs (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Sun, 31 Aug 2014 16:18:42 -0500
Jim, Interesting, I guess this makes me happy with having purchased my SteppIR antennas from Ron Stone, GW3YDX of Vine Antennas in Wales. Ron has a much better turn around time and is very available.
/archives//html/Towertalk/2014-08/msg00587.html (8,902 bytes)

46. Re: [TowerTalk] Apartment Antenna Ideas Needed (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Tue, 14 Oct 2014 03:56:29 -0500
Friends, You can armstrong rotate or purchase a light duty rotator but of course you would need something else for forty meters. 73 Doug EI2CN With a hexbeam you need both a mast and some way to rota
/archives//html/Towertalk/2014-10/msg00120.html (9,641 bytes)

47. Re: [TowerTalk] Yagi gain vs rotary dipole. (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Tue, 25 Nov 2014 15:19:02 -0500
Dear OMs, I have much to learn. Surely a dipole or Yagi has a certain maximum height beyond which not much is to be gained by going higher even for DX - QST did a study of the optimum height for a Ya
/archives//html/Towertalk/2014-11/msg00500.html (11,594 bytes)

48. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Fri, 30 Jan 2015 09:00:19 -0500
Hans and Pat This topic is always of interest. The other possibility is Hi-Z circle eight and four square antennas. I am always interested in garnering information of Beverages. So maybe you will get
/archives//html/Towertalk/2015-01/msg00521.html (8,035 bytes)

49. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Fri, 30 Jan 2015 11:56:27 -0500
Hans, I am not an expert on these antennas. I have a Hi-Z 4 square in my small wood. Unfortunately it is only 30 feet from an old silage pit made of mass concrete and of course reinforced with steel.
/archives//html/Towertalk/2015-01/msg00539.html (11,871 bytes)

50. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Fri, 30 Jan 2015 15:28:59 -0500
Hans, In my case the Beverages were supported by fence posts every fifty feet. The antennas were kept up for the TB season. My lengths were more than one wave length approximately 880 feet in one dir
/archives//html/Towertalk/2015-01/msg00550.html (13,806 bytes)

51. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Fri, 30 Jan 2015 17:33:38 -0500
Hi Cort, This sounds different. I take it the fence wire was you antenna, We all seem to have different approaches and Beverages can be forgiving. I like your approach to getting up ten feet - neat.
/archives//html/Towertalk/2015-01/msg00554.html (19,360 bytes)

52. Re: [TowerTalk] Steppir BI-directional mode (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Sat, 31 Jan 2015 13:15:33 -0500
Dear OMs, If I am not mistaken the SteppIR 3 element has a bidirectional mode and it does have gain in both directions. There is no need to retract director and reflector. I use all three modes forwa
/archives//html/Towertalk/2015-01/msg00583.html (8,486 bytes)

53. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Mon, 02 Feb 2015 05:41:14 -0500
Dear OMs, This is the maximum height and 0.05 is 1/20 so you should have a maximum height of 13 feet. Not many people use the Beverages this high - they may work but is performance impaired? The w8JI
/archives//html/Towertalk/2015-02/msg00027.html (8,689 bytes)

54. Re: [TowerTalk] SteppIR BI-directional mode (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Mon, 02 Feb 2015 05:48:14 -0500
Dear OMs If you full retract the director/s and reflector then it will take longer switching to forward or reverse directions. The preset bi-directional setting only moves the tape a few inches and s
/archives//html/Towertalk/2015-02/msg00028.html (8,496 bytes)

55. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Mon, 02 Feb 2015 05:51:14 -0500
Dear OMs, Another point to consider is that while 13 feet might be okay for 160M, it is too high for 80 and 40 meters. 73 Doug EI2CN 0.05 = 1/20 That implies 26.86 feet. 492 / 1.832 = 268.55 feet. 26
/archives//html/Towertalk/2015-02/msg00029.html (7,350 bytes)

56. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Mon, 02 Feb 2015 06:28:00 -0500
Hi Stan, Yes of course you are right and so too was VE7RF to whom I apologize with a red face. The comment though about also wanting to use the Beverage for 80/40 though is still valid; I hope. 73 Do
/archives//html/Towertalk/2015-02/msg00032.html (9,984 bytes)

57. Re: [TowerTalk] Beverage Antenna (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Mon, 02 Feb 2015 16:41:50 -0500
Don, Many of us who have built and used Beverage antennas are learning from this discussion so do not feel badly about asking questions. I for one am glad you do. It sounds as if BOGs, Beverage on Gr
/archives//html/Towertalk/2015-02/msg00058.html (13,853 bytes)

58. Re: [TowerTalk] SteppIR (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Fri, 27 Feb 2015 16:24:43 -0500
Joe and OMs, I do not believe a stepper motor has any brush contacts. It does not create the rotating magnetic field in this manner. There are alternate N and S poles on the rotor and the magnetic fi
/archives//html/Towertalk/2015-02/msg00512.html (13,012 bytes)

59. Re: [TowerTalk] SteppIR (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Fri, 27 Feb 2015 16:46:43 -0500
Joe, Yes, I am happy with what you say and apologize for misreading your post. 73 Doug EI2CN Doug, The stepper motor does not have any brush contacts. The *elements* have brush contacts at the center
/archives//html/Towertalk/2015-02/msg00514.html (10,854 bytes)

60. Re: [TowerTalk] SteppIR (score: 1)
Author: "Doug Turnbull" <turnbull@net1.ie>
Date: Sat, 28 Feb 2015 13:07:06 -0500
Dear Joe and OMs, Not sure my previous post made it. I apologized to Joe for mistakenly reading his posting as implying that stepper motors use brushes. Joe and I agree they do not. I was not conside
/archives//html/Towertalk/2015-02/msg00530.html (16,588 bytes)

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