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Total 28 documents matching your query.

1. [TenTec] humm (score: 1): Author: "John Molenda" <brazos@rochester.rr.com>; Date: Tue, 24 Nov 2009 19:14:57 -0500; Hello all , I am getting a hum on my audio when I go to the SSB menu and turn my l.f. rolloff below 200 Hz at 200 and above the hum is gone . I am using the Orion II with a Heil heritage mic and the; /archives//html/TenTec/2009-11/msg00269.html (6,852 bytes)
2. Re: [TenTec] humm (score: 1): Author: "David & Chris Drake" <drakes@psci.net>; Date: Tue, 24 Nov 2009 20:44:49 -0500; Hi, Sounds like a problem with the cartridge switch, rather than the radio or the power supply. David Wd9cmd _______________________________________________ TenTec mailing list TenTec@contesting.com; /archives//html/TenTec/2009-11/msg00270.html (8,268 bytes)
3. Re: [TenTec] humm (score: 1): Author: "Mike Hyder --N4NT--" <Mike_N4NT@embarqmail.com>; Date: Tue, 24 Nov 2009 20:45:10 -0500; This is NOT a diagnosis but a possible avenue of investigation. The early Astron RS35 had a problem with internal grounding (actually the lack of it). If your Astron is old, it may help to follow Ast; /archives//html/TenTec/2009-11/msg00271.html (11,349 bytes)
4. Re: [TenTec] humm (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Wed, 25 Nov 2009 14:45:16 -0600; Make sure the Astron power supply is under the desk or otherwise remote from the rig by at least a couple of feet. Be sure to use the same gauge wire as provided by the rig manufacurer for power lead; /archives//html/TenTec/2009-11/msg00281.html (8,723 bytes)
5. Re: [TenTec] humm (score: 1): Author: "Gary Hoffman" <ghoffman@spacetech.com>; Date: Wed, 25 Nov 2009 17:25:24 -0500; Ok, I'll bite. I'll regret it, but I'll bite. Ground surges won't arc across stuff and run from place to place through your rig and other expensive equipment if ALL grounds, everywhere at your QTH ar; /archives//html/TenTec/2009-11/msg00286.html (10,483 bytes)
6. Re: [TenTec] humm (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Wed, 25 Nov 2009 17:06:43 -0600; Actually Gary, what you say would be true in theory, but for the mortal character of wire resistance. That is what allowed the surge to come down the coax shield, (low R) and travel thru the coax con; /archives//html/TenTec/2009-11/msg00287.html (9,159 bytes)
7. Re: [TenTec] humm (score: 1): Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>; Date: Wed, 25 Nov 2009 15:41:47 -0800; Forget about grounding and rewiring things. I suspect that your problem is nothing more than simple magnetic coupling of 60 Hz into the mic. When you set the rolloff to 200 Hz, you knock it down a lo; /archives//html/TenTec/2009-11/msg00288.html (9,377 bytes)
8. Re: [TenTec] humm (score: 1): Author: Martin Ewing <martin.s.ewing@gmail.com>; Date: Wed, 25 Nov 2009 19:03:14 -0500; I agree with others that the most likely cause is magnetic pickup or AC grounding problems, but there could be another source. I have found that I get fan noise from the power supply coupling into th; /archives//html/TenTec/2009-11/msg00289.html (9,229 bytes)
9. Re: [TenTec] humm (score: 1): Author: "Art Trampler" <atrampler@att.net>; Date: Wed, 25 Nov 2009 19:02:24 -0600; My Omni VI only hums when it forgets the words. Happy Thanksgiving all! Art, KØRO Make sure the Astron power supply is under the desk or otherwise remote from the rig by at least a couple of feet. Be; /archives//html/TenTec/2009-11/msg00293.html (9,975 bytes)
10. Re: [TenTec] humm (score: 1): Author: "Richards " <JRUING@AMERITECH.NET>; Date: Wed, 25 Nov 2009 10:05:04 -0500; Not so, Dick Tracy... ;-) Larry King used to say that the hourly fee of any professional, especially a lawyer or psychiatrist, is based on how well, and how deeply he can say, "Hmmm... Uhhhh__huhhhh.; /archives//html/TenTec/2009-11/msg00295.html (8,809 bytes)
11. Re: [TenTec] humm (score: 1): Author: "Gary Hoffman" <ghoffman@spacetech.com>; Date: Wed, 25 Nov 2009 22:17:47 -0500; Resistance is indeed the evil. If one's bonding is inadequate - and it mostly is NOT !!! - then you are defeated. And there can be sneak circuits...and again you are defeated. And a direct hit....unl; /archives//html/TenTec/2009-11/msg00296.html (11,701 bytes)
12. Re: [TenTec] humm (score: 1): Author: "Gary Hoffman" <ghoffman@spacetech.com>; Date: Wed, 25 Nov 2009 22:21:12 -0500; Well I meant obviously that the bonding mostly IS Inadequate...sorry for the typo. _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.co; /archives//html/TenTec/2009-11/msg00297.html (12,937 bytes)
13. Re: [TenTec] humm (score: 1): Author: "Gary Hoffman" <ghoffman@spacetech.com>; Date: Wed, 25 Nov 2009 22:25:52 -0500; Yes, and I agree...works for my engineering consulting practice as well !! (Nods and strokes beard sagely) LOL _______________________________________________ TenTec mailing list TenTec@contesting.co; /archives//html/TenTec/2009-11/msg00298.html (9,593 bytes)
14. Re: [TenTec] humm (score: 1): Author: "Richards " <JRUING@AMERITECH.NET>; Date: Wed, 25 Nov 2009 11:25:13 -0500; Exactly.... you clearly understand ! == Richards == == _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec; /archives//html/TenTec/2009-11/msg00299.html (8,081 bytes)
15. Re: [TenTec] humm (score: 1): Author: "Lyle Dunlap" <qskqrq@grics.net>; Date: Thu, 26 Nov 2009 07:38:24 -0600; I always thought a power supply sitting beside a transceiver analogous to a car battery in the passenger seat. Only my humble opinion of course Happy tks gvng ev1 W9FCX ______________________________; /archives//html/TenTec/2009-11/msg00303.html (8,299 bytes)
16. Re: [TenTec] humm (score: 1): Author: "David & Chris Drake" <drakes@psci.net>; Date: Thu, 26 Nov 2009 10:06:41 -0500; Probably true !! And good general advise. TT now has a new supply inside of the black speaker case, I guess due to demand for a "sitting next to the transciever" supply. Only $299 ! I'm using a new r; /archives//html/TenTec/2009-11/msg00306.html (9,645 bytes)
17. Re: [TenTec] humm (score: 1): Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>; Date: Thu, 26 Nov 2009 07:53:41 -0800; With lightning, it is INDUCTANCE, NOT RESISTANCE. The energy in lightning is centered around the AM broadcast band and extends well into the HF spectrum. Above about 20kHz, the inductive reactance o; /archives//html/TenTec/2009-11/msg00307.html (9,527 bytes)
18. Re: [TenTec] humm (score: 1): Author: "Richards " <JRUING@AMERITECH.NET>; Date: Thu, 26 Nov 2009 00:57:00 -0500; Hi Jim -- I am fascinated by you comments because I believe they are accurate. And, yet, TenTec told me not to daisy chain the chassis grounds together and their 963 power supply has no ground lug at; /archives//html/TenTec/2009-11/msg00308.html (10,475 bytes)
19. Re: [TenTec] humm (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Thu, 26 Nov 2009 12:13:51 -0600; Only a warped opinion. Since many a power supply has included the speaker (at least since Collins introduced the 516F-2 in about 1959 with speaker in the power supply cabinet) its been appropriate fo; /archives//html/TenTec/2009-11/msg00309.html (9,672 bytes)
20. Re: [TenTec] humm (score: 1): Author: Martin Ewing <martin.s.ewing@gmail.com>; Date: Thu, 26 Nov 2009 15:05:48 -0500; All opinions are "warped" (except mine). Put the boxes where they work for you! I want my PS somewhere where I can see the pilot light and switch it on and off. And I use it as a tiny bulletin board; /archives//html/TenTec/2009-11/msg00311.html (10,982 bytes)

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