[RFI] RFI Digest, Vol 203, Issue 49

Fri Dec 20 13:53:07 EST 2019

Did you chain them, plug one into the next or did you plug each fixture into an outlet? 

I found chaining them creates noise, individual outlets doesn’t.

Dale k9vuj

On 20, Dec 2019, at 11:48, Dennis Monticelli <dennis.monticelli at gmail.com> wrote:

I bought some FEIT 4' shop lights for the garage.  They work well but are
noisy in BCB and lower HF.  My antennas are right above the roof.  Because
I turn off the shop lights when I'm not in the garage they don't present a
problem with hamming or the kitchen AM radio that is at the opposite end of
the house.  Otherwise, I would have to do something about it such as
explore filters.

While some brands seem better than others, in general I have found that you
can't simply count on a brand.  You have to buy the lamp and test it.

Dennis AE6C

On Fri, Dec 20, 2019 at 9:00 AM <rfi-request at contesting.com> wrote:

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> Today's Topics:
> 
>   1. Re: LED Lights (Gary Johnson)
>   2. led lights (Leonard Keepers)
>   3. Re: LED Lights (Dale Johnson)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 20 Dec 2019 07:26:49 -0800
> From: Gary Johnson <gwj at wb9jps.com>
> To: Dale Johnson <dj2001x at comcast.net>
> Cc: Leonard.Keepers at comcast.net, rfi at contesting.com
> Subject: Re: [RFI] LED Lights
> Message-ID: <506298B6-713A-4F5E-810E-CC5CCF50CFBD at wb9jps.com>
> Content-Type: text/plain; charset=utf-8
> 
> 1. What make and model? exactly.
> 
> 2. How far are your antennas from those lights?
> 
> I can also say with 100% confidence that a NOISY fixture will cause a
> proximal RFI problem even if only one is installed.
> 
> -Gary NA6O
> 
>> On Dec 20, 2019, at 12:51 AM, Dale Johnson <dj2001x at comcast.net> wrote:
>> 
>> I have them in the shack for my desk lamp, no noise.  Also have them in
> the basement on 24/7 no noise.  My shop lights both garage and basement
> shop are LED and no noise except don?t daisy chain them.
>> 
>> Good luck
>> Dale, k9vuj
>> 
>> 
>> 
>> On 19, Dec 2019, at 22:04, Gary Johnson <gwj at wb9jps.com> wrote:
>> 
>> Simple. Avoid fixtures. I have yet to find one that is acceptably quiet.
> Use  medium-base screw-in bulbs, per the list at the bottom of my RFI page.
>> http://wb9jps.com/Gary_Johnson/RFI.html
>> 
>> Gary  NA6O
>> 
>> Hello all could someone suggest where to get LED light that do not
>> generate RFI and a place where these lights can be purchased.Thank You
>> 
>> Leoard
>> _______________________________________________
>> RFI mailing list
>> RFI at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Fri, 20 Dec 2019 10:39:49 -0500
> From: Leonard Keepers <Leonard.Keepers at comcast.net>
> To: RFI at contesting.com
> Subject: [RFI] led lights
> Message-ID: <194ce92c-52e3-9654-b9f9-d32b1629ab35 at comcast.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> hello i thank everyone that replied to me on led lights greatly appreciated
> 
> Leonard
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Fri, 20 Dec 2019 10:31:49 -0600
> From: Dale Johnson <dj2001x at comcast.net>
> To: Gary Johnson <gwj at wb9jps.com>
> Cc: rfi at contesting.com
> Subject: Re: [RFI] LED Lights
> Message-ID: <6028E845-5071-4499-9631-00F8BA170E71 at comcast.net>
> Content-Type: text/plain;       charset=utf-8
> 
> Feit Electric at the LED?s that I have in the shack lamp and other places
> in the house.  There are two in the basement that I never shut off.  The
> shop lights are also Feit Electric.  My doublet goes over the house at
> about 30 feet, it?s 140 feet long with open feeders.  The yagi is a SteppIR
> at about 40 feet now and the tower base is about 35 feet from my shack
> window.  When I turn on the lights I don?t hear any increase in the noise
> floor here which is pretty quiet here for being in  a city.  Noise floor
> right now on 20 meters is about S-2 to S-3 on my K3 with no attenuation,
> preamp off.  If I turn the yagi South the noise floor increases, I believe
> it?s from my neighbors next door (200 ft) or beyond, but not from my own
> house.
> 
> Dale, K9VUJ
> 
> 
> 
> On 20, Dec 2019, at 9:26, Gary Johnson <gwj at wb9jps.com> wrote:
> 
> 1. What make and model? exactly.
> 
> 2. How far are your antennas from those lights?
> 
> I can also say with 100% confidence that a NOISY fixture will cause a
> proximal RFI problem even if only one is installed.
> 
> -Gary NA6O
> 
>> On Dec 20, 2019, at 12:51 AM, Dale Johnson <dj2001x at comcast.net> wrote:
>> 
>> I have them in the shack for my desk lamp, no noise.  Also have them in
> the basement on 24/7 no noise.  My shop lights both garage and basement
> shop are LED and no noise except don?t daisy chain them.
>> 
>> Good luck
>> Dale, k9vuj
>> 
>> 
>> 
>> On 19, Dec 2019, at 22:04, Gary Johnson <gwj at wb9jps.com> wrote:
>> 
>> Simple. Avoid fixtures. I have yet to find one that is acceptably quiet.
> Use  medium-base screw-in bulbs, per the list at the bottom of my RFI page.
>> http://wb9jps.com/Gary_Johnson/RFI.html
>> 
>> Gary  NA6O
>> 
>> Hello all could someone suggest where to get LED light that do not
>> generate RFI and a place where these lights can be purchased.Thank You
>> 
>> Leoard
>> _______________________________________________
>> RFI mailing list
>> RFI at contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>> 
> 
> 
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> End of RFI Digest, Vol 203, Issue 49
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