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21. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Mon, 11 Jun 2007 01:57:45 -0400; When it came to accuracy we always had problems with that type of system when things didn't work right. IOW when the system recalibrates it starts out accurate, but if there is anything that hinders; /archives//html/Towertalk/2007-06/msg00233.html (11,554 bytes)
22. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Mon, 11 Jun 2007 01:42:43 -0500; _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk; /archives//html/Towertalk/2007-06/msg00234.html (11,169 bytes)
23. Re: [TowerTalk] SteppIR problem (score: 1): Author: "W5LT" <W5LT@tx.rr.com>; Date: Mon, 11 Jun 2007 07:06:16 -0500; Dick makes some good points. Cable capacitance and shunt capacitance of supressors will both increase the transient (and over-all average) current drawn from the power supply. A previous similar prob; /archives//html/Towertalk/2007-06/msg00237.html (24,845 bytes)
24. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Mon, 11 Jun 2007 07:16:06 -0500; The question of the power supply's average current capability requires further investigation since this is the most logical cause of the problem. This would exactly explain the symptoms reported. The; /archives//html/Towertalk/2007-06/msg00238.html (13,290 bytes)
25. Re: [TowerTalk] SteppIR problem (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Mon, 11 Jun 2007 06:10:11 -0700; Another somewhat subtle problem is that with long wires, you might get big inductive/"transmission line pulse former" spikes at the suppressors. (on each and every step pulse) If they're MOVs, you ca; /archives//html/Towertalk/2007-06/msg00243.html (11,288 bytes)
26. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Jerry Keller" <k3bz@arrl.net>; Date: Mon, 11 Jun 2007 10:09:15 -0400; I don't know for sure yet if driver chip(s) were blown in the original controller (Bill still has it, I think) but I believe they are OK in the 2nd controller we sent.... because Bill says he's able; /archives//html/Towertalk/2007-06/msg00248.html (29,916 bytes)
27. [TowerTalk] SteppIR problem (score: 1): Author: Bill Ogden <ogden@us.ibm.com>; Date: Mon, 11 Jun 2007 10:51:10 -0400; Simple suggestion: Ask the SteppIR people for a control-box connector with a few feet of cable on it. (That is, do not try to solder one yourself. It is difficult to do accurately without a proper ji; /archives//html/Towertalk/2007-06/msg00251.html (8,567 bytes)
28. Re: [TowerTalk] SteppIR problem (score: 1): Author: Krishna Kanakasapapathi <kkanakas@cisco.com>; Date: Mon, 11 Jun 2007 11:25:21 -0400; Generator or a car battery & inverter. Krish w4vku _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http; /archives//html/Towertalk/2007-06/msg00258.html (9,258 bytes)
29. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Dick Green" <wc1m@msn.com>; Date: Mon, 11 Jun 2007 11:31:42 -0400; I agree that this would be a good test, but given the hassle I would opt for trying a different power supply first -- provided the resistances still check out OK and SteppIR endorses the test. If you; /archives//html/Towertalk/2007-06/msg00260.html (9,919 bytes)
30. [TowerTalk] SteppIR problem (score: 1): Author: "Robert Chudek - K0RC" <k0rc@citlink.net>; Date: Mon, 11 Jun 2007 10:43:56 -0500; Here, pass that steering wheel into the backseat where I'm sitting... I might as well give this a shot too... :-) I have been very interested in reading this thread and the good suggestions of cause,; /archives//html/Towertalk/2007-06/msg00263.html (9,645 bytes)
31. Re: [TowerTalk] SteppIR problem (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Mon, 11 Jun 2007 11:29:11 -0500; Best suggestion I have heard lately. I certainly wouldn't recommend the user go change his cable when the factory doesn't know the maximum limits for the cable. Jerry ________________________________; /archives//html/Towertalk/2007-06/msg00269.html (11,237 bytes)
32. Re: [TowerTalk] SteppIR problem (score: 1): Author: Kenneth Grimm <kdgrimm@comcast.net>; Date: Mon, 11 Jun 2007 17:25:17 -0400; This is putting a lot on the back of the purchaser. It seems to me that if the SteppIR won't work with 500' of SteppIR control cable, SteppIR should say so. In other words, this 500' test should be d; /archives//html/Towertalk/2007-06/msg00308.html (9,445 bytes)
33. Re: [TowerTalk] SteppIR problem (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Mon, 11 Jun 2007 16:21:07 -0700; 1000 ft of AWG22 wire is about 19-20 ohms Based on some stuff on N8LP's website, I'm going to guess that the motor current for a single element is about 300 mA. I'm going to guess that they use stand; /archives//html/Towertalk/2007-06/msg00314.html (9,146 bytes)
34. Re: [TowerTalk] SteppIR problem (score: 1): Author: <john@kk9a.com>; Date: Mon, 11 Jun 2007 22:12:11 -0400; The discussion on this has been very interesting and informative. Most feel the cable length is the problem due to either excessive resistance or capacitance. Larger wire would help if the problem wa; /archives//html/Towertalk/2007-06/msg00320.html (11,529 bytes)
35. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Dick Green" <wc1m@msn.com>; Date: Tue, 12 Jun 2007 01:56:10 -0400; I sent a variation on this post to Jerry at SteppIR this afternoon: I've been thinking about the problem, too, and I've come to the conclusion that the power supply test won't reveal much -- only whe; /archives//html/Towertalk/2007-06/msg00328.html (9,613 bytes)
36. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Tue, 12 Jun 2007 07:59:19 -0400; There is some point where the equipment fails, and if we keep going we can even make it explode! If the equipment works as K4SAV described, current is constant but the pulse width increases with lon; /archives//html/Towertalk/2007-06/msg00332.html (9,468 bytes)
37. Re: [TowerTalk] SteppIR problem (score: 1): Author: "Mike K9MI" <mike@k9mi.com>; Date: Tue, 12 Jun 2007 13:57:13 -0000; This has turned into such a long thread, and I probably missed it, but the steppIR people have been contacted about this problem, right? And, did it ever work with the current cable system? Or did th; /archives//html/Towertalk/2007-06/msg00338.html (10,589 bytes)
38. [TowerTalk] SteppIR problem (score: 1): Author: "Byron Lichtenwalner" <w3wkr@verizon.net>; Date: Tue, 12 Jun 2007 11:38:29 -0400; Friends This is a new SteppIR question. Anyone know the DC resistqance of the RF feed point of the Monstir antenna. I am trying to resole a feedline problem. I am measuring a DC resistance into the B; /archives//html/Towertalk/2007-06/msg00341.html (8,094 bytes)
39. [TowerTalk] SteppIR problem (score: 1): Author: "Byron Lichtenwalner" <w3wkr@verizon.net>; Date: Tue, 12 Jun 2007 11:58:13 -0400; _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk; /archives//html/Towertalk/2007-06/msg00342.html (7,345 bytes)

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