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Total 567 documents matching your query.

281. Re: [TenTec] Centurion Amplifier - 110 volt? (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sun, 24 Sep 2006 21:52:08 -0400
I don't know if that is the letter of the law - perhaps it is. But the inspectors here routinely allow it. So, who knows ? 73 de Gary, AA2IZ NOT in tape to ground. add If it _________________________
/archives//html/TenTec/2006-09/msg00560.html (10,429 bytes)

282. Re: [TenTec] Centurion Amplifier - 110 volt? (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Tue, 26 Sep 2006 12:27:51 -0400
What I said was, specifically, that you MAY add a ground rod at a secondary panel. But - it is not sufficient to meet code. In other words, you still need a ground wire back to the main box ALSO. THa
/archives//html/TenTec/2006-09/msg00607.html (15,235 bytes)

283. Re: [TenTec] Orion and RF Feedback (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sun, 15 Oct 2006 17:03:49 -0400
This is correct.....a quarter wave will be a bad thing. Either you have to be significantly less than a quarter wave, or, tuned at a half wave (which will reflect the low impedance of the ground into
/archives//html/TenTec/2006-10/msg00429.html (9,997 bytes)

284. Re: [TenTec] TenTec Digest, Vol 46, Issue 45 (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Mon, 16 Oct 2006 11:51:21 -0400
Mike, I'm curious. What is the theory behind this approach ? I'm always interested to learn more approaches to grounding. Gary sill _______________________________________________ TenTec mailing list
/archives//html/TenTec/2006-10/msg00435.html (9,768 bytes)

285. Re: [TenTec] Argosy Allen Wrenches (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sat, 21 Oct 2006 20:05:26 -0400
If they don't you can easily order them from McMaster-Carr and have them by Tuesday. Gary _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contes
/archives//html/TenTec/2006-10/msg00559.html (9,564 bytes)

286. Re: [TenTec] speech processing idea (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 27 Oct 2006 00:30:08 -0400
They had pc's in 1958 ? Interesting. I was still using mainframes and terminals in 72....shows how much I missed. _______________________________________________ TenTec mailing list TenTec@contesting
/archives//html/TenTec/2006-10/msg00637.html (8,798 bytes)

287. Re: [TenTec] speech processing idea (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sat, 28 Oct 2006 17:48:48 -0400
I operate PSK 31 and RTTY almost exclusively. Just a tiny bit of SSB, no CW any more. But I'd like to try digital voice. Is anyone using it ? Comments ? Hardware ? How's it work with Ten Tec radios ?
/archives//html/TenTec/2006-10/msg00659.html (11,889 bytes)

288. Re: [TenTec] Vertical radial question (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sun, 29 Oct 2006 22:27:39 -0500
Whats the signal to wave ratio ?? _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2006-10/msg00688.html (9,810 bytes)

289. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Thu, 7 Dec 2006 00:31:52 -0500
My two and a half cents worth.... I cannot comment on ALL the posts on this subject. People have widely divergent views on the effectiveness of the noise reduction software now (or previously) presen
/archives//html/TenTec/2006-12/msg00091.html (16,338 bytes)

290. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Thu, 7 Dec 2006 22:38:21 -0500
That's all correct. Perhaps my choice of words was unfortunate. I did not say it produced any more GAIN. Rather I said that the DSP action resulted in more gains (in the war against noise....that is.
/archives//html/TenTec/2006-12/msg00127.html (11,607 bytes)

291. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Thu, 7 Dec 2006 22:47:25 -0500
I'm not familiar with Linrad, so on that I cannot comment. DSP work is not done with general purpose microcomputers running the huge overhead of an operating system and everything else. I can well be
/archives//html/TenTec/2006-12/msg00128.html (10,914 bytes)

292. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Thu, 7 Dec 2006 23:31:29 -0500
Bill, One thing is for sure. IF...IF.....all that the processor in the Orion does is build a narrower bandwidth filter around the signal, then it follows as the night follows the day that a person do
/archives//html/TenTec/2006-12/msg00130.html (11,253 bytes)

293. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 8 Dec 2006 00:35:57 -0500
Ok Grant.... I'm not trying to split hairs with you or be blindly argumentative....however, a DSP processor does nothing else, by the definition of the term. If it is a general purpose processor, cap
/archives//html/TenTec/2006-12/msg00132.html (11,883 bytes)

294. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 8 Dec 2006 01:18:56 -0500
Duane, Oh yes indeed there are. I've used many forms of Digital Signal Processing in my earlier work, other than for noise reduction. I am though limiting the discussion HERE to noise reduction, beca
/archives//html/TenTec/2006-12/msg00135.html (16,251 bytes)

295. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 8 Dec 2006 22:08:42 -0500
Yes, what was explained at the bottom is about right. We did not have to have adaptive filters in the applications I used, because the signal environment was always somewhat a given. But you could ad
/archives//html/TenTec/2006-12/msg00159.html (12,308 bytes)

296. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 8 Dec 2006 22:12:19 -0500
Excellent News :) of which not _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2006-12/msg00160.html (10,671 bytes)

297. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 8 Dec 2006 22:20:59 -0500
Grant, I should be much more careful in defining my terms. That way I would be less likely to make confusing remarks ! When you say that bandwidth reduction (by whatever means) is a true form of nois
/archives//html/TenTec/2006-12/msg00161.html (11,962 bytes)

298. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Fri, 8 Dec 2006 22:28:40 -0500
Indeed yes, all correct. This is one of the "other" methods I had in mind when I wrote one of my earlier posts. And narrow bandwidth makes the job of separating "good" signals from "bad" signals more
/archives//html/TenTec/2006-12/msg00166.html (13,354 bytes)

299. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sat, 9 Dec 2006 17:01:30 -0500
Jerry points out a real weakness of many people's approach to FFT analysis - windowing. When I was doing vibration analysis for Kodak we used a B&K 2032 audio spectrum analyzer, which is of course an
/archives//html/TenTec/2006-12/msg00197.html (14,640 bytes)

300. Re: [TenTec] Noise Reduction Setting (score: 1)
Author: "Gary Hoffman" <ghoffman@spacetech.com>
Date: Sat, 9 Dec 2006 17:05:33 -0500
Lin, Are you doing SETI work ? It seems to me I've run into you over there ? Regards, Gary, AA2IZ Grant, you are soooo right. It raises the hair on the back of my neck ;) Jerry said: You hit it on th
/archives//html/TenTec/2006-12/msg00198.html (14,897 bytes)

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