Search String: Display: Description: Sort:

Results:

References: [ +from:ingraham.ma.ultranet@rcn.com: 94 ]

Total 94 documents matching your query.

21. Re: [RFI] So-Called Utility "Smart Meters" (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Thu, 21 Aug 2008 15:23:43 -0400
A bit more about the frequencies (from http://tantalus.com/technology.htm): "The 220 MHz frequency is a licensed spectrum used by many utilities for SCADA applications; the 900 MHz frequency is an u
/archives//html/RFI/2008-08/msg00030.html (7,856 bytes)

22. Re: [RFI] BrightHouse & RFI? (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Thu, 21 Aug 2008 15:43:41 -0400
In the "old" days with analog cable TV channels, the cable companies had an extra incentive to keep RFI from their cables low: When the cables radiate anything, there is also ingress into the cables
/archives//html/RFI/2008-08/msg00031.html (7,768 bytes)

23. Re: [RFI] FCC Class A& B Regs/ was: Low Voltage Patio Lights (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Tue, 9 Sep 2008 14:56:07 -0400
The FCC doesn't have the means to do enforcement. If there are any "RFI police" out there, their numbers must be very small. They depend on complaints to know when something's wrong. I believe that
/archives//html/RFI/2008-09/msg00016.html (8,972 bytes)

24. Re: [RFI] Spam (was: Please connect with me :) ) (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Sun, 5 Oct 2008 11:54:17 -0400
I wonder if Warren knew that he sent this email. Probably not. Reunion.com is another one of those spammers like Grouply that takes over your address list and blasts out spam to everyone you know. E
/archives//html/RFI/2008-10/msg00014.html (7,075 bytes)

25. Re: [RFI] Powerful RFI - Solved (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Tue, 14 Oct 2008 10:22:44 -0400
I'm sure there are many possibilities, but a few of them are: Some AM radios are deaf, especially AM/FM stereo radios. Some can't pick up an AM station 20 miles away. If it uses a loopstick antenna,
/archives//html/RFI/2008-10/msg00052.html (7,951 bytes)

26. Re: [RFI] RFI from PC speakers (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Tue, 21 Oct 2008 16:29:00 -0400
Taking a wild stab here ... Clamp-on ferrites affect common-mode noise only. If there is a switching regulator that draws power off the USB lines while adding crap to it (between power and gnd), it w
/archives//html/RFI/2008-10/msg00061.html (7,351 bytes)

27. Re: [RFI] CFL Bulbs (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Wed, 12 Nov 2008 11:09:00 -0500
Just as another data point ... I have several compact flourescents in the home and a few standard non-compact types. By far the noisiest of them is NOT a CFL. I am not much a weak signal listener, bu
/archives//html/RFI/2008-11/msg00009.html (8,244 bytes)

28. Re: [RFI] CFL Bulbs (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Wed, 12 Nov 2008 12:39:20 -0500
On a daily basis I still use one of the first two CFLs we got almost 20 years ago. It always had an annoying tendency to take several seconds to ignite at all, and it still does that. Only those firs
/archives//html/RFI/2008-11/msg00015.html (8,779 bytes)

29. Re: [RFI] You think YOU have RFI problems? ;-) (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Wed, 31 Dec 2008 16:18:03 -0500
It could be that all homeowners there knew about the restrictions. That being said, however, it can feel a bit constricting to know that the technology that has sprouted in the rest of the world over
/archives//html/RFI/2008-12/msg00131.html (10,686 bytes)

30. Re: [RFI] CFLs and LEDs (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Sun, 11 Jan 2009 15:51:08 -0500
Is "Lights of America" a rip-off brand, or are they worthy of consideration? Years ago we had a Lights of America ~8" fluorescent tube with a screw base fixture. They are ever so slightly smaller th
/archives//html/RFI/2009-01/msg00063.html (8,592 bytes)

31. Re: [RFI] CFLs and LEDs (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Fri, 16 Jan 2009 12:15:19 -0500
My experience has been overall very good with CFLs that come in the standard screw base and with either coiled or straight tubes. I think I've had two of them eventually go bad (start flickering or
/archives//html/RFI/2009-01/msg00125.html (9,685 bytes)

32. Re: [RFI] RFI Susceptibility of DTV? (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Fri, 23 Jan 2009 10:08:27 -0500
Is the reduced power permanent? Or is this just during the interim period when both ATSC and NTSC are in use? (I thought the temporary DTV assignments were at lower power.) The lower VHF channels ar
/archives//html/RFI/2009-01/msg00166.html (8,505 bytes)

33. Re: [RFI] RFI Susceptibility of DTV? (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Fri, 23 Jan 2009 18:29:53 -0500
Recently I scanned a listing of old/new channel assignments, and almost all the VHF-low channels (2-6) were being vacated. It wasn't a thorough check, but I saw very few staying down there. This was
/archives//html/RFI/2009-01/msg00170.html (10,377 bytes)

34. Re: [RFI] RFI Susceptibility of DTV? (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Fri, 23 Jan 2009 22:17:37 -0500
How come? Storm damage? Not getting adequate DTV reception? _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2009-01/msg00177.html (9,427 bytes)

35. [RFI] CFLs and LEDs (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Sun, 1 Feb 2009 12:25:03 -0500
I've enjoyed the discussions about compact fluorescents, even if they sometimes digressed from the topic of RFI. Another resource I just came across, which others might enjoy too, is: http://members.
/archives//html/RFI/2009-02/msg00000.html (7,589 bytes)

36. Re: [RFI] CFLs and LEDs (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Mon, 2 Feb 2009 14:03:45 -0500
In one of the webpages I referred to the other day, they advise against using CFLs with Radio Shack's "Plug-N-Power" system, which is Radio Shack's re-branding of X10. (The webpage did not mention X
/archives//html/RFI/2009-02/msg00015.html (8,856 bytes)

37. [RFI] CFL reliability (was: VLF interference Re: CFLs and LEDs) (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Sat, 7 Feb 2009 16:07:00 -0500
I can't think of anything that could cause a mechanical timer to kill a CFL. It's nothing more than a motor-driven toggle switch, after all. There's a website somewhere (I think the one that describe
/archives//html/RFI/2009-02/msg00048.html (11,369 bytes)

38. Re: [RFI] CFL's & UV - Hoax or Real? Real but Overstated? (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Mon, 23 Feb 2009 21:46:33 -0500
All fuoroescents generate UV; CFLs are no exception. The UV hitting the inside coating of the glass causes it to glow (fluoresce) with visible light; and that's how they generate light. The glass hop
/archives//html/RFI/2009-02/msg00111.html (8,691 bytes)

39. Re: [RFI] CFL's & UV - Hoax or Real? Real but Overstated? (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Tue, 24 Feb 2009 11:40:30 -0500
That wouldn't surprise me. Incandescents emit light by way of what physicists call "blackbody radiation," which everything in the universe emits, proportional to its temperature above absolute zero.
/archives//html/RFI/2009-02/msg00124.html (10,017 bytes)

40. Re: [RFI] Computer Speaker RFI (score: 1)
Author: "Andy" <ingraham.ma.ultranet@rcn.com>
Date: Sun, 1 Mar 2009 14:52:17 -0500
West Mountain Radio has an "RF Interference Resistant Computer Speaker System" ... don't know if it's the same one that was advertised in QST. http://www.westmountainradio.com/COMspkr.htm I have no
/archives//html/RFI/2009-03/msg00004.html (7,535 bytes)

Current List: 21 - 40
Page: [1] [2] [3] [4] [5]
This search system is powered by Namazu