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References: [ +from:aa6e@ewing.homedns.org: 16 ]

Total 16 documents matching your query.

1. [RFI] So you've got QRM? (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Wed, 01 Nov 2006 10:25:40 -0500
Today's New York Times: 82,000? Let's see, times 10 kHz per channel... That's 820 MHz of spectrum? We've got to get more reporters with ham licenses, who will ask the right questions. 73 Martin AA6E
/archives//html/RFI/2006-11/msg00002.html (7,233 bytes)

2. [RFI] wireless power at 6.4 MHz? (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Wed, 15 Nov 2006 09:50:36 -0500
See http://news.bbc.co.uk/2/hi/technology/6129460.stm for an interesting new use of HF spectrum to provide local power for computer peripherals etc. They propose 6.4 MHz -- not clear why that freq. I
/archives//html/RFI/2006-11/msg00039.html (6,545 bytes)

3. Re: [RFI] wireless power at 6.4 MHz? (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Sat, 18 Nov 2006 22:25:37 -0500
All true, except in the case of evanescent waves, which are exponentially attenuated, as in the case of the external waves seen when you have "total internal reflection" in optics, or more familiar t
/archives//html/RFI/2006-11/msg00048.html (9,962 bytes)

4. Re: [RFI] Haolgens AND . . . (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Sat, 18 Nov 2006 22:38:51 -0500
Halogen lights themselves are no problem. But the cheap dimming power supplies are reported to be big trouble. Dimmer switches vary. I have had good luck with modern ones, but older ones can be terri
/archives//html/RFI/2006-11/msg00049.html (7,648 bytes)

5. Re: [RFI] Philips Energy Saving Bulbs? (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Mon, 04 Dec 2006 11:55:25 -0500
I have been using many Panasonic EFG15E28 "light capsules" at our house for several years now. Nothing heard from them on HF or VHF. I have a number of other incandescent replacement types that have
/archives//html/RFI/2006-12/msg00008.html (8,437 bytes)

6. Re: [RFI] Long distance grounding (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Mon, 11 Jun 2007 21:17:13 -0400
Dave, One point of view is that there is no need for an "RF ground" if your antennas and feeds are properly balanced. (No RF on the coax, etc.) On the other hand, if you are running a long wire anten
/archives//html/RFI/2007-06/msg00009.html (9,411 bytes)

7. Re: [RFI] Ethernet Extenders (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Mon, 25 Jun 2007 11:03:48 -0400
Dave, You've got an "interesting" problem there. It's hard to see how it could be an RFI problem. However, you might want to seriously look at your system grounding. If your CAT5 is "grounded" at bot
/archives//html/RFI/2007-06/msg00041.html (10,523 bytes)

8. Re: [RFI] Ethernet Extenders (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Mon, 25 Jun 2007 12:51:17 -0400
Yes, but he said he had the problem with a 5W power level into a dummy load! Furthermore, all the long wiring is underground. That indicates something other than RFI, I'd say. Maybe a computer/softwa
/archives//html/RFI/2007-06/msg00045.html (8,286 bytes)

9. Re: [RFI] Buying New Vehicle - RFI issues with these models? (score: 1)
Author: Martin AA6E <aa6e@ewing.homedns.org>
Date: Sat, 04 Aug 2007 18:43:30 -0400
I've wondered about this. If your vehicle is ok with 500W, what happens if you drive by a Sequoia on the highway while Txing? Do you leave a trail of dead cars behind you? Only half joking. 73 Martin
/archives//html/RFI/2007-08/msg00005.html (9,347 bytes)

10. Re: [RFI] Meter Sensitivity to Surges (score: 1)
Author: Martin Ewing - AA6E <aa6e@ewing.homedns.org>
Date: Thu, 27 Sep 2007 21:39:33 -0400
Not necessarily. Dale's scenario of one high altitude nuclear burst is one I've heard before. The EMP effects can be severe even a thousand miles away. Most modern electronics would be fried, and we'
/archives//html/RFI/2007-09/msg00028.html (7,924 bytes)

11. Re: [RFI] How cost effective -- and safe -- are CFL bulbs anyway? (score: 1)
Author: Martin Ewing - AA6E <aa6e@ewing.homedns.org>
Date: Thu, 18 Oct 2007 15:46:28 -0400
I have a couple dozen Panasonic CFL (EFG15E28 15 W "capsule" type) installed (upside down!) for about 5 years now. Had 2 or 3 failures only. Like any fluorescent they don't really like to be turned o
/archives//html/RFI/2007-10/msg00063.html (12,022 bytes)

12. Re: [RFI] Ceiling Fan question (score: 1)
Author: Martin Ewing - AA6E <aa6e@ewing.homedns.org>
Date: Fri, 26 Oct 2007 08:19:02 -0400
Aircraft radio? (esp. military) -de aa6e _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2007-10/msg00123.html (6,391 bytes)

13. Re: [RFI] Car laptop adaptors (score: 1)
Author: Martin Ewing - AA6E <aa6e@ewing.homedns.org>
Date: Sat, 10 Nov 2007 20:20:06 -0500
Using raw auto power seems a little risky to me - if you don't want to fry your laptop when running the starter motor or getting a jump start... OTOH, that's what we do with our ham gear. 73 Martin A
/archives//html/RFI/2007-11/msg00031.html (8,335 bytes)

14. Re: [RFI] Power Lines (score: 1)
Author: Martin Ewing - AA6E <aa6e@ewing.homedns.org>
Date: Sun, 23 Dec 2007 17:54:14 -0500
Check out the wikipedia article on this at http://en.wikipedia.org/wiki/Three-phase_electric_power . Lots of info and some interesting animations. You can build a neat DC power supply for your multi-
/archives//html/RFI/2007-12/msg00053.html (10,744 bytes)

15. Re: [RFI] RF quiet wired routers (score: 1)
Author: Martin Ewing AA6E <aa6e@ewing.homedns.org>
Date: Mon, 31 Dec 2007 16:23:52 -0500
I'm using a NetGear WGR614 with no particular issues. Of course, all Ethernet wiring and routers give off birdies if you look closely enough. I agree that some Linksys units have been pretty bad for
/archives//html/RFI/2007-12/msg00075.html (8,546 bytes)

16. Re: [RFI] I. C. E. products question (score: 1)
Author: Martin Ewing AA6E <aa6e@ewing.homedns.org>
Date: Mon, 31 Dec 2007 16:30:22 -0500
I've dissected a different ICE unit - the 348 Surge Protector. See http://blog.aa6e.net/2005/03/ice-348-surge-protector.html . I was not too happy with the "build quality", but I'm using these for my
/archives//html/RFI/2007-12/msg00076.html (7,982 bytes)

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