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References: [ +from:KeepWalking188@ac0c.com: 32 ]

Total 32 documents matching your query.

1. Re: [RFI] VDSL (very-high-bit-rate digital subscriber line) (score: 1)
Author: "Jeff AC0C" <keepwalking188@ac0c.com>
Date: Sun, 20 Apr 2014 19:15:03 -0500
It may be the best TV service. But it can be a nightmare both in being RF sensitive, and in generating wideband trash. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie What's up with U-Verse? Con
/archives//html/RFI/2014-04/msg00152.html (12,634 bytes)

2. Re: [RFI] clamp on ferrites at Mouser (score: 1)
Author: "Jeff AC0C" <keepwalking188@ac0c.com>
Date: Tue, 17 Jun 2014 11:49:05 +0800
David is correct. However, generally speaking, #31 is the mix of choice for HF problems. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: David Cole Sent: Tuesday, June
/archives//html/RFI/2014-06/msg00095.html (12,884 bytes)

3. Re: [RFI] Switchers ... (score: 1)
Author: "Jeff AC0C" <keepwalking188@ac0c.com>
Date: Sat, 15 Nov 2014 00:46:45 -0600
Your question is far too non-specific to have merit. The generic answer to "what do you replace a noisy switer with" - is a linear supply. It's too heavy. It's too inefficient. It's too big. Well, th
/archives//html/RFI/2014-11/msg00036.html (11,686 bytes)

4. [RFI] Coupling methods for RFI emission testing on SPS (score: 1)
Author: "Jeff AC0C" <keepwalking188@ac0c.com>
Date: Tue, 9 Aug 2016 12:46:25 +0800
There are a few applications where I have needed to use a SPS and worried about RFI. My solution has been to compare the powered and unpowered spectrum on a SA, looking for areas where the floor is r
/archives//html/RFI/2016-08/msg00051.html (9,969 bytes)

5. Re: [RFI] : Noise location radio Tecsun PL660 011618 (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Wed, 17 Jan 2018 20:59:48 +0800
There seems to be a polarity reversal diode in the radio.  Tested that theory myself and it's fortunate there is apparently something in there to keep the accidental reversal from getting a guy in tr
/archives//html/RFI/2018-01/msg00033.html (8,849 bytes)

6. [RFI] ethernet switch with shielded case or low emission spectrum (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Thu, 29 Mar 2018 14:22:03 +0800
In the process of overhauling the shack's wiring, I'm wanting to replace my existing ethernet switch with a box that is properly shielded - or at least has one with a low emission footprint. Here i'm
/archives//html/RFI/2018-03/msg00085.html (8,255 bytes)

7. Re: [RFI] ethernet switch with shielded case or low emission spectrum (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Thu, 29 Mar 2018 23:28:44 +0800
I don't need to guess the Ethernet spur frequencies - thanks to Murphy they seem to be on MY QRG automagically!!!  :) 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com https://www.nk7z.net/rfi-sna
/archives//html/RFI/2018-03/msg00090.html (13,992 bytes)

8. [RFI] RFI-quiet front loading washer? (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Sun, 6 May 2018 23:16:51 -0500
Wife wants a new washer - her spec includes a FRONT loading type My spec includes RFI-QUIET.  Or a model that is known to be made quiet with the addition of some ferries. Appreciate any recommendatio
/archives//html/RFI/2018-05/msg00009.html (6,554 bytes)

9. [RFI] Anyone test RFI from LG WM3770HWA front loader? (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Fri, 11 May 2018 21:34:31 -0500
Comments if you have them from your own experience with this model. Thanks! 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com _______________________________________________ RFI mailing list RFI@c
/archives//html/RFI/2018-05/msg00046.html (6,678 bytes)

10. Re: [RFI] LG washer WT1501CW - EMI (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Fri, 9 Nov 2018 08:28:25 -0600
I have had a LG WM3770HVA for a few months now and it's not making any noise that I've identified.  I did however put about 6 turns of the power cord through a FT240-31 sized ferrite on install (stan
/archives//html/RFI/2018-11/msg00036.html (8,845 bytes)

11. [RFI] RFI from Electronic descaler (alternative to membrane/salt water softener system) (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Thu, 15 Nov 2018 00:16:46 -0600
The layout of our house precludes using a traditional water softener system and for that reason I was looking at the descaler systems which seem to work by creating a magnetic field around the pipe a
/archives//html/RFI/2018-11/msg00048.html (7,200 bytes)

12. [RFI] LED bulb replacements for use in existing florescent fixtures (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Thu, 15 Nov 2018 14:18:50 -0600
Any experience with LED direct-replacements that are supposed to work with existing ballast/fixtures? I have a number of F28/T5-4' long fixtures that seem to eat the bulbs about as fast as I can get
/archives//html/RFI/2018-11/msg00049.html (7,731 bytes)

13. Re: [RFI] Non-switching wall warts availability? (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Mon, 26 Nov 2018 13:33:46 -0600
A local uses the Jameco "regulated linear supply" which you can get off their web site.  No problems that I have heard of. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com Ciao Sandro, i7ALE ....
/archives//html/RFI/2018-11/msg00088.html (9,477 bytes)

14. Re: [RFI] Christmas light display (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Sat, 8 Dec 2018 12:15:12 -0600
I'm going to go see a neighbor today who always has a great looking display about this time each year.  This go around, he's expanded to even more and better looking stuff. The problem is when it fir
/archives//html/RFI/2018-12/msg00035.html (6,988 bytes)

15. Re: [RFI] Christmas light display (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Sun, 23 Dec 2018 20:15:36 -0600
Turns out this was not a Christmas light display, but apparently is a MOV on a pole in front of the guy's house. Diagnosis and tracking involved driving around looking at signal levels on a PL660 SWL
/archives//html/RFI/2018-12/msg00061.html (9,305 bytes)

16. [RFI] Christmas light display - SOLVED (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Fri, 11 Jan 2019 00:12:37 -0600
The power company guys were good to their word and contacted me a couple of days after Christmas.  They came over and I hooked up their receiver/SA (radar engineers 242) to my antenna and they got a
/archives//html/RFI/2019-01/msg00000.html (14,665 bytes)

17. Re: [RFI] Common mode choke on 4 Square feedlines without skewing phasing? (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Wed, 23 Jan 2019 14:44:51 -0600
I've had a number of different elevated radial configurations with a 40m 4SQ and from my personal experience the addition of ferrites to the individual feeds did improve the directional characteristi
/archives//html/RFI/2019-01/msg00029.html (10,215 bytes)

18. Re: [RFI] Portables for sniffing RFI (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Sat, 13 Jul 2019 11:24:00 -0500
The 660 has one advantage over a lot of other radios and that's the ability to run on the aircraft 135? Mhz band.  If your RFI involves power lines, then being able to go up to VHF does a lot in help
/archives//html/RFI/2019-07/msg00023.html (10,032 bytes)

19. Re: [RFI] Light Dimmer (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Tue, 10 Dec 2019 15:48:18 -0600
The Lutron dimmers I have in the house here are quiet. Recommended. For the bulbs, I've found all of the FEIT brand bulbs sold by Costco to be quiet also. 73/jeff/ac0c alpha-charlie-zero-charlie www.
/archives//html/RFI/2019-12/msg00066.html (7,614 bytes)

20. Re: [RFI] Light Dimmer (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Tue, 10 Dec 2019 18:27:49 -0600
I should comment on the FEIT bulb and quality that.  I tested the emissions with an SA coupled to the line cord and this was done at FULL VOLTAGE.  Meaning the bulbs when powered with 120V AC were qu
/archives//html/RFI/2019-12/msg00070.html (9,773 bytes)


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