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References: [ +from:jeff@ac0c.com: 18 ]

Total 18 documents matching your query.

1. Re: [RFI] U-Verse problem update (score: 1)
Author: "Jeff AC0C" <jeff@ac0c.com>
Date: Tue, 15 Feb 2011 14:37:17 -0600
Vince, Can you test to see if the effect is not present when transmitting below 3.650 Mhz? In a local problem, we found there was a very pronounced roll off in the sensitivity of Uverse above about 3
/archives//html/RFI/2011-02/msg00072.html (9,153 bytes)

2. Re: [RFI] U-Verse problem update (score: 1)
Author: "Jeff AC0C" <jeff@ac0c.com>
Date: Tue, 15 Feb 2011 15:37:53 -0600
In my case, the fiber only comes to the junction on the street. It's copper all the way from there. Anything over about 25W in my case was enough to cause the connection to fail. And we had about hal
/archives//html/RFI/2011-02/msg00075.html (9,467 bytes)

3. Re: [RFI] Wireless Keyboard/Mouse Combos? (score: 1)
Author: "Jeff AC0C" <jeff@ac0c.com>
Date: Tue, 29 Mar 2011 23:44:51 -0500
I have several varieties of the Logitech brands. Pretty good battery life here. Change out - depending on use - 3-6 mo. Or whenever a full-up contest comes around. I have a ultra low end MS that I do
/archives//html/RFI/2011-03/msg00145.html (12,947 bytes)

4. Re: [RFI] BCB interference on 160 (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Tue, 13 Sep 2011 21:47:06 -0500
Rick, For the HPF option, see this: http://www.ac0c.com/main/page_antennas__homebrew_clifton_labs_z10022a.html 73, Jeff ACØC www.ac0c.com Hi all, I recently built a sheilded RX loop for 160 per N6RKs
/archives//html/RFI/2011-09/msg00035.html (7,837 bytes)

5. Re: [RFI] Fisher Price Baby Monitor (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Thu, 29 Sep 2011 22:51:29 -0500
Rick, I bought a Philips Avent unit. It's digital and I think has a 5.8 Ghz link. Pretty expensive but it has great quieting which made the wife happy. And after I swapped the crib side power supply
/archives//html/RFI/2011-09/msg00040.html (7,786 bytes)

6. Re: [RFI] TV turns on-off when TX (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Sat, 31 Dec 2011 15:39:57 -0600
I have the same problem with my Samsung. 80m and 160m only. My solution - which the neighbors probably won't like - is to pull the power from that unit when it's contest weekend. 73/jeff/ac0c www.ac0
/archives//html/RFI/2011-12/msg00033.html (8,626 bytes)

7. Re: [RFI] Smart meters (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Mon, 16 Jan 2012 17:15:28 -0600
Electric power is a major spend item for a company. You can be assured they are not waiting electricity without thought. For a company, the decision has more to do with factors beyond the cost of ele
/archives//html/RFI/2012-01/msg00037.html (10,431 bytes)

8. Re: [RFI] Smart meters (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Mon, 16 Jan 2012 17:22:59 -0600
You are right Jim. There are a lot of legal reasons to keep the lights on as well. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie Or makes their employees who work late feel safer. 73, Jim K9YC
/archives//html/RFI/2012-01/msg00039.html (9,249 bytes)

9. [RFI] UPS RFI (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Thu, 19 Jan 2012 16:47:47 -0600
Any one have any experience with any of these units, regarding HF RFI emission? Cyberpower PR1500 1500va 1000 watts APC Smart UPS SMT1500 1440va 980 watts APC Smart UPS SU1000NET 1000va 670 watts Tha
/archives//html/RFI/2012-01/msg00071.html (6,278 bytes)

10. Re: [RFI] RFI from HIGH voltage power lines (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Fri, 1 Jun 2012 09:07:41 -0500
Related question. I'm looking to move to a place where I can put up a decent spread of antennas. A couple of the places have been scratched because the high tension lines were within 1000' or so of t
/archives//html/RFI/2012-06/msg00003.html (10,371 bytes)

11. Re: [RFI] When AC filtering actually makes it worse (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Mon, 22 Apr 2013 18:10:07 -0500
Aaron, My guess is that you have power adapters around your house which are taking a free ride on the house wiring. Have you tried to hunt down the noise makers? One quick (?) way is to get a portabl
/archives//html/RFI/2013-04/msg00015.html (11,262 bytes)

12. [RFI] Toshiba 39L22U RFI? (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Sun, 28 Apr 2013 13:22:13 -0500
Im considering the purchase of this LCD TV. Curious if anyone has experience with this TV from an RFI generation standpoint? I have a couple of Samsung LCD here and they are very well behaved. No exp
/archives//html/RFI/2013-04/msg00072.html (6,591 bytes)

13. Re: [RFI] LED Under Cabinet Kitchen Lights YES or NO (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Fri, 26 Jul 2013 11:26:01 -0500
There are many China ebay sellers of LED strips that come on a reel. The LED are spaced every inch or so apart and are driven off 12VDC. Dropping resistors are on the tape. Current consumption is aro
/archives//html/RFI/2013-07/msg00023.html (10,957 bytes)

14. Re: [RFI] LED Under Cabinet Kitchen Lights YES or NO (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Fri, 26 Jul 2013 17:59:25 -0500
Yes, the issue is the switching PS that is used. NOT the underlying LED strip technology. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie So if I am reading correctly what Jim and Jeff are sayin
/archives//html/RFI/2013-07/msg00027.html (11,392 bytes)

15. Re: [RFI] Quiet Dimmers For 120V Incandescents (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Mon, 26 Aug 2013 09:57:47 +0900
Jim, Dump the halogen bulbs and move to white LED designs. That kills quite a few dragons in one move. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie OK, we seem to have that dragon slain -- th
/archives//html/RFI/2013-08/msg00044.html (9,084 bytes)

16. Re: [RFI] If you're ATT, you can do something about RFI... (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Tue, 29 Oct 2013 02:28:34 -0500
What happens if we have a case where AT&T is the culprit (via radiation into ham bands from the Uverse's utilization of POTS wiring) blanketing much of the lower HF bands? 73/jeff/ac0c www.ac0c.com a
/archives//html/RFI/2013-10/msg00044.html (13,870 bytes)

17. Re: [RFI] LED Christmas Light RFI -> LED lead corrosion (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Tue, 3 Dec 2013 10:43:14 +0900
Gary is on the money, you could say. Those little generic T5 LEDs have a manufacturer's side cost basis in the 1-2 cents range. And the price competition is murderous. The hang-up to cost reduction i
/archives//html/RFI/2013-12/msg00033.html (14,797 bytes)

18. [RFI] RFI quiet USB 3.0 hub (score: 1)
Author: "Jeff Blaine" <jeff@ac0c.com>
Date: Sat, 1 Feb 2014 21:00:04 -0600
Any experience on USB 3.0 hubs? I realize asking about the RFI from a USB device (considering its essentially a digital amp with tons of harmonics and a lot of handy antennas plugged into it) is a bi
/archives//html/RFI/2014-02/msg00000.html (6,010 bytes)

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