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Re: [RFI] LED lighting

To: Phil Snyder <n9lah@comcast.net>, "rfi@contesting.com" <rfi@contesting.com>
Subject: Re: [RFI] LED lighting
From: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Tue, 28 Jul 2015 00:50:24 +0000
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Here is one offer you can make that may sweeten the pot.  Offer to buy him 
replacement bulbs.  If you tell me the size and type, I will buy 6 of them at 
Home Depot, test them for noise and if they are quiet, I will send them to you, 
as long as I can get the make and model of the noisy lights and we can get the 
bulbs here for testing.


From: RFI [rfi-bounces@contesting.com] on behalf of Phil Snyder 
Sent: Monday, July 27, 2015 7:59 PM
To: rfi@contesting.com
Subject: Re: [RFI] LED lighting

Yes I have been trying to document on and off times for noise/light
activity so I have something to report to him. He is an industrial
electrician by day so I think he will understand the problem. Will he
care? That I don't know but time will tell. Thanks


On 7/27/2015 3:50 PM, Rik van Riel wrote:
> On 07/26/2015 10:50 AM, Phil Snyder wrote:
>> Well after a 4 year period the local electric company found the
>> offending lightning arrester and voila no more noise! Unfortunately, the
>> neighbor behind me just remodeled the outside of their house and in the
>> process added about 6 LED lighting fixtures in the soffit across the
>> front and after a few days of watching and listening it appears that
>> they are causing way more RFI then the faulty arrester ever did.
>> I am hoping to learn a little more here before approaching them to make
>> sure all my facts are straight. I am assuming that there is a switching
>> power supply running the lights and that the power is cut to the supply
>> when they are not on since the noise is gone when they are off.
> It is very possible each LED has its own power supply inside,
> and one of them is faulty.
> "Hey, I noticed when you switch those LEDs on, I get a bunch
> of noise on the radio. I am worried one of your bulbs may bee
> defective, and could pose a fire hazard. Mind if we take a look
> at them to see if one of them is bad?"

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