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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+steppIR\s*$/: 78 ]

Total 78 documents matching your query.

61. Re: [TowerTalk] SteppIR (score: 1)
Author: <ve4xt@mymts.net>
Date: Fri, 27 Feb 2015 15:52:43 -0600
The motors may be brushless, but because the element slides, the contacts from feedline to the element halves in the driven element is with tensioned tabs that press against the CuBe tape as it slide
/archives//html/Towertalk/2015-02/msg00523.html (14,677 bytes)

62. Re: [TowerTalk] SteppIR (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Sat, 28 Feb 2015 08:43:08 -0800
On 2/27/15 1:52 PM, ve4xt@mymts.net wrote: The motors may be brushless, but because the element slides, the contacts from feedline to the element halves in the driven element is with tensioned tabs t
/archives//html/Towertalk/2015-02/msg00524.html (10,608 bytes)

63. Re: [TowerTalk] SteppIR (score: 1)
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Sat, 28 Feb 2015 11:02:00 -0600
That is why it is called a stepper motor. Its motion is stepwise, not continuous, think digital not analog. If the steps are small enough and are taken rapidly enough you can closely simulate the smo
/archives//html/Towertalk/2015-02/msg00525.html (15,761 bytes)

64. 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)

65. Re: [TowerTalk] SteppIR (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Sat, 28 Feb 2015 10:09:19 -0800
On 2/28/15 9:02 AM, Patrick Greenlee wrote: That is why it is called a stepper motor. Its motion is stepwise, not continuous, think digital not analog. If the steps are small enough and are taken rap
/archives//html/Towertalk/2015-02/msg00531.html (16,369 bytes)

66. Re: [TowerTalk] SteppIR (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 28 Feb 2015 17:28:21 -0800
Several have mentioned potential failure points for the SteppIR antennas. I haven't heard about many failures. In fact, I can't think of any. There are a fair number in us by now. How often are failu
/archives//html/Towertalk/2015-02/msg00538.html (8,281 bytes)

67. [TowerTalk] SteppIR (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 28 Feb 2015 17:46:24 -0800
That is why it is called a stepper motor. Its motion is stepwise, not continuous, think digital not analog. If the steps are small enough and are taken rapidly enough you can closely simulate the smo
/archives//html/Towertalk/2015-02/msg00539.html (8,757 bytes)

68. Re: [TowerTalk] SteppIR (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Sat, 28 Feb 2015 20:33:49 -0800
motor? Thats what K7NV does on his prop pitch conversions..and works slick..simple concept, easy mod to any motor. Its all fed to the Green Heron box...which is a modified RT-21. Jim VE7RF What is w
/archives//html/Towertalk/2015-03/msg00004.html (7,588 bytes)

69. Re: [TowerTalk] SteppIR (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Sun, 01 Mar 2015 05:42:33 -0800
DC..or AC motor? Thats what K7NV does on his prop pitch conversions..and works slick..simple concept, easy mod to any motor. Its all fed to the Green Heron box...which is a modified RT-21. Jim VE7RF
/archives//html/Towertalk/2015-03/msg00008.html (8,731 bytes)

70. Re: [TowerTalk] SteppIR (score: 1)
Author: W0MU Mike Fatchett <w0mu@w0mu.com>
Date: Sun, 01 Mar 2015 09:55:16 -0700
The driver chips are a weak link. The older boxes they were surface mounted. The new controller they are in sockets. The driver chips are cheap. I have a tube of them on hand, just in case. Mike W0MU
/archives//html/Towertalk/2015-03/msg00020.html (10,026 bytes)

71. Re: [TowerTalk] SteppIR (score: 1)
Author: "David" <k4zzr@comcast.net>
Date: Sun, 1 Mar 2015 15:31:06 -0500
Several years ago I had a finely-crafted aluminum 11 element antenna (made in Germany) that was supposed to survive 100mph winds. Im in southeast Florida, about two miles from the coast. In 2004, aft
/archives//html/Towertalk/2015-03/msg00022.html (8,559 bytes)

72. Re: [TowerTalk] SteppIR (score: 1)
Author: Bryan Fields <Bryan@bryanfields.net>
Date: Sun, 01 Mar 2015 21:38:01 -0500
But he did hijack the thread. :facepalm: I think hams are too stupid to use email. -- Bryan Fields 727-409-1194 - Voice 727-214-2508 - Fax http://bryanfields.net _____________________________________
/archives//html/Towertalk/2015-03/msg00026.html (8,288 bytes)

73. [TowerTalk] SteppIR (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 5 Mar 2015 05:39:43 -0800
Several years ago I had a finely-crafted aluminum 11 element antenna (made in Germany) that was supposed to survive 100mph winds. I?m in southeast Florida, about two miles from the coast. In 2004, af
/archives//html/Towertalk/2015-03/msg00060.html (9,626 bytes)

74. [TowerTalk] SteppIR (score: 1)
Author: "William Osborne" <wosborne44@gmail.com>
Date: Thu, 9 Apr 2015 11:22:04 -0500
"The fiberglass tubes lower the resonant frequency by an uncontrolled amount, since they are just fishing poles that do not have any exact permittivity value. It is analogous to FR-4 PC boards where
/archives//html/Towertalk/2015-04/msg00078.html (7,433 bytes)

75. [TowerTalk] Steppir (score: 1)
Author: BRUCE FORD via TowerTalk <towertalk@contesting.com>
Date: Mon, 29 Aug 2022 14:36:13 -0500
Not a direct tower issue but closely related (with u clamps ) . I have a new in the box Steppir antenna with what looks to be 4 grey element control boxes and a Fluid motion controller. All parts app
/archives//html/Towertalk/2022-08/msg00154.html (7,849 bytes)

76. Re: [TowerTalk] Steppir (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 29 Aug 2022 12:55:39 -0700
Sure. Manuals are on their website, including building instructions. The control cable is two pairs per element, required conductor diameter and controller drive voltage depend on length of the cable
/archives//html/Towertalk/2022-08/msg00155.html (7,663 bytes)

77. [TowerTalk] Steppir (score: 1)
Author: W1JCW John <W1JCW@hotmail.com>
Date: Mon, 29 Aug 2022 19:58:06 +0000
Jim - I'm unclear as to what you're asking about or stating. Please clarify 73- W1JCW John Join my new SteppIR Antennas IO group by sending an email to: SteppIREngineeringandRepair+subscribe@groups.i
/archives//html/Towertalk/2022-08/msg00156.html (8,855 bytes)

78. Re: [TowerTalk] Steppir (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 29 Aug 2022 13:07:00 -0700
Please clarify What needs clarification? I responded to Bruce's post. He's got most if not all of the parts for a straight 4-el, is looking doc on it. 73, Jim K9YC ___________________________________
/archives//html/Towertalk/2022-08/msg00157.html (8,001 bytes)

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