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Re: [RFI] LED Bulbs

To: rfi@contesting.com
Subject: Re: [RFI] LED Bulbs
From: "David C. Hallam" <dhallam@knology.net>
Reply-to: dhallam@knology.net
Date: Mon, 10 Feb 2014 13:48:55 -0500
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
I may have made an unwarranted conclusion, but I assumed the LED were substituted for halogen without any other changes. I will see if I can get a clarification on that point. Would a change in bulb types make any difference in the RFI being generated?

David
KW4DH

On 2/10/2014 1:14 PM, Jim Brown wrote:
On 2/10/2014 11:07 AM, Dave Cole wrote:
Who would have thought the LED's could radiate so far?

It's not the LEDs, it's the wires (antennas) connected to the switching power supply for the LEDs. This should come as no surprise to any ham -- switching power supplies are generators of RF trash, that puts RF current on those wires, and like any other antenna, those wires radiate the trash.

Thank you VERY much for posting details of part numbers and vendors for the bad products.

73, Jim K9YC
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