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References: [ +from:wa2lbi@gmail.com: 28 ]

Total 28 documents matching your query.

1. Re: [RFI] Noise changes when room lights turn on / off- NOISE FOUND!!!!! (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Sat, 22 Sep 2012 13:39:10 -0400
Tony, A CFL = Compact Fluorescent Lamp. Ken WA2LBI _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2012-09/msg00140.html (8,415 bytes)

2. Re: [RFI] Noise changes when room lights turn on / off- NOISEFOUND!!!!! (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Sun, 23 Sep 2012 07:35:12 -0400
The controllers that use a relay (you can hear the "click" when it switches on/off) to apply/remove power to the socket are "universal" and will handle both CFL and filament bulbs. The power to the s
/archives//html/RFI/2012-09/msg00150.html (11,785 bytes)

3. Re: [RFI] Thumper & not the rabbit (score: 1)
Author: <wa2lbi@gmail.com>
Date: Sat, 29 Mar 2014 17:08:34 +0000
Damper control motor? Ken WA2LBI Resonance in the control wires? How long are they? Are they twisted? Just a thought ... David KD4E -- David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA Safe & Secu
/archives//html/RFI/2014-03/msg00282.html (8,420 bytes)

4. Re: [RFI] Resetting Auto Computer (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Thu, 29 May 2014 14:55:46 -0400
FYI, you can reduce the reset time to a few seconds . After disconnecting the ground cable just step on the brake pedal. Reconnect the ground cable and you are good to go. Ken WA2LBI ________________
/archives//html/RFI/2014-05/msg00094.html (8,617 bytes)

5. Re: [RFI] DC Power supplies (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Fri, 6 May 2016 13:14:20 -0400
If you are looking for RF-quiet switching power supplies to run HF and VHF/UHF rigs you should take a look at what IOTA has to offer. ( http://www.iotaengineering.com/dls.htm). They make small. light
/archives//html/RFI/2016-05/msg00029.html (15,306 bytes)

6. Re: [RFI] Quiet Power Supply? (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Wed, 3 Aug 2016 14:29:02 -0400
Peter, Check out the IOTA power supplies. I have had the IOTA DLS-55 with IQ4 smart charger module for years. Sometimes it has run 24/7 for months. The IOTA units are exceptionally RF clean and have
/archives//html/RFI/2016-08/msg00003.html (8,953 bytes)

7. Re: [RFI] Quiet Power Supply? (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Wed, 3 Aug 2016 17:30:58 -0400
Jim, For pricing use your favorite search utility to find "iota power supply". Mine was purchased off ebay. I suspect they are not widely sold by ham radio dealers because they aren't "pretty". They
/archives//html/RFI/2016-08/msg00007.html (13,033 bytes)

8. Re: [RFI] A "new" RFI (score: 1)
Author: "Ken, WA2LBI" <wa2lbi@gmail.com>
Date: Tue, 02 May 2017 04:34:46 -0400
Sounds like a defective starter in a street lamp.   KenWA2LBI Sent from my S5 So....I am sitting in front of the rig this evening, minding my own business, trying to do a little operating on 80, and
/archives//html/RFI/2017-05/msg00004.html (7,626 bytes)

9. Re: [RFI] Is this a new RFI problem goTenna Pro (or intruder) (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Thu, 27 Jul 2017 13:11:45 -0400
Ken, et al, See the following link for ham radios sold at Walmart. Do you really believe there is any license validation taking place for these purchases? https://www.walmart.com/c/kp/amateur-ham-rad
/archives//html/RFI/2017-07/msg00057.html (10,330 bytes)

10. Re: [RFI] "No RFI" LED bulbs (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Tue, 15 Aug 2017 22:40:08 +0000
Chris, Yes, the issue is when the bulb it lit either by opening the door or operating the light manually. When some fluorescent or LED bulbs are lit they produce RFI that interferes with the door ope
/archives//html/RFI/2017-08/msg00023.html (8,255 bytes)

11. Re: [RFI] "No RFI" LED bulbs (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Tue, 15 Aug 2017 23:08:20 +0000
Gary, I originally switched to fluorescent bulbs in my opener due to premature failure of incandescents caused by vibration. I now use "daylight" LEDs. I am fortunate that neither type bulb has cause
/archives//html/RFI/2017-08/msg00026.html (9,620 bytes)

12. Re: [RFI] Poor man's portable spectrum analyzer (score: 1)
Author: "wa2lbi@gmail.com" <wa2lbi@gmail.com>
Date: Fri, 13 Jul 2018 10:33:02 -0400
Dusk to dawn may be a defective street lamp.  It fails to start and repeatedly retries from dusk to go dawn.  Usually, however, the raucous noise covers many bands, not just a few frequencies. Ken WA
/archives//html/RFI/2018-07/msg00076.html (8,523 bytes)

13. Re: [RFI] Home RFI Hunting (score: 1)
Author: "wa2lbi@gmail.com" <wa2lbi@gmail.com>
Date: Thu, 13 Sep 2018 14:42:42 -0400
I haven't heard much noise from LCD TVs or monitors.  You could disconnect all cables to the TV except power and put a 75 ohm terminator on the coax connector.  Power up the TV and listen for noise. 
/archives//html/RFI/2018-09/msg00029.html (8,939 bytes)

14. Re: [RFI] Non-switching wall warts availability? (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Mon, 26 Nov 2018 12:06:51 -0500
Andy, That is a switching supply. Typically, any power supply that lists it operates from 100V to 240V without a voltage selection switch is a switcher. Ken WA2LBI -- Ken WA2LBI Sent from one of my m
/archives//html/RFI/2018-11/msg00083.html (8,883 bytes)

15. Re: [RFI] What is a MOV (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Fri, 11 Jan 2019 11:22:58 -0500
Ken WA2LBI Sent from one of my mobile devices _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2019-01/msg00005.html (7,779 bytes)

16. Re: [RFI] Spectrum Cable Boxes (score: 1)
Author: "wa2lbi@gmail.com" <wa2lbi@gmail.com>
Date: Thu, 10 Oct 2019 20:38:55 -0400
Tony,I have a Spectrum cable/DVR box in the room directly above the shack.  My 75 meter dipole is about 30' away and only 20' or so high.  The multi band dipole is about 50' from the house at the sam
/archives//html/RFI/2019-10/msg00006.html (8,149 bytes)

17. Re: [RFI] RFI clean charger (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Tue, 15 Oct 2019 08:41:34 -0400
I second the use of IOTA power supplies/chargers. Mine is a DLS-55 SMPS power supply (https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesnt produce RFI, is audibly quiet, and rugged
/archives//html/RFI/2019-10/msg00026.html (7,135 bytes)

18. Re: [RFI] compact fluorescent bulbs (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Mon, 16 Dec 2019 06:47:59 -0500
I use LED bulbs in my garage door opener (GDO) and have not had a problem. A few years ago, however, I had one LED bulb start to fail and it put out so much RFI that it desensed the GDO receiver to t
/archives//html/RFI/2019-12/msg00104.html (10,849 bytes)

19. Re: [RFI] LED streetlights - Lumenistics (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Wed, 4 Mar 2020 13:31:08 -0500
I remember years ago when municipalities replaced incandescent traffic lights with LED lights to save money. They discovered that in winter the snow would cover and block the lights since they didnt
/archives//html/RFI/2020-03/msg00017.html (13,128 bytes)

20. Re: [RFI] LED streetlights - Lumenistics (score: 1)
Author: Ken Winterling <wa2lbi@gmail.com>
Date: Wed, 4 Mar 2020 19:17:59 -0500
I believe you can thank lead-free solder for many failed joints. It needs higher heat to melt than the leaded type. Ive been working on equipment for over fifty years and see more PCB solder joint fa
/archives//html/RFI/2020-03/msg00022.html (9,763 bytes)

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