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Re: [RFI] LED Street lights

To: rfi@contesting.com
Subject: Re: [RFI] LED Street lights
From: David Cole <dave@nk7z.net>
Reply-to: dave@nk7z.net
Date: Fri, 10 Oct 2014 21:18:21 -0700
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Hi Kurt,

I got three LED Spot Lights from Walmart, model number "LED BR40", and
while they are probably well under the minimum the FCC allows, they are
a bit noisy...  

With three of them 20 feet from a dipole, on all bands above and
including 20 meters, they generate an S 4 to S 5 RFI level...  I am
unable to hear them on my vertical 60 feet away...

As I said they are probably FCC Part 15 compliant, although not marked
as such interestingly enough.    

Thanks and 73's,
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On Fri, 2014-10-10 at 20:48 -0700, KD7JYK DM09 wrote:
> "I'm wondering about the LED replacements, Wondering if they
> are hash producers?"
> It's not the LEDs themselves that makes noise, it's the giant switching mode 
> power supply that feeds them that goes bad.  I have a couple in the shop, 
> sometimes lights fall off the poles, I pick up the pieces to study.
> Kurt 
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