[RFI] LED Bulbs

[w6rgs at cox.net]

When we completely rewired our home last year, state code required 
that we use "energy saving" lights and dimmers.  Our hall 
dimmer/light combination gave off horrible RFI.  After the 
final  inspection, the dimmer was replaced with a regular on/off 
switch and the RFI vanished. No problem with the LED lights that 
stayed. But, our government (state, federal, local) knows what is 
best for us, here in the Land of the Free.

At 10:48 AM 2/10/2014, David C. Hallam wrote:
>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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>
>--
>"I predict future happiness for Americans if they can prevent the 
>government from wasting the labors of the people under the pretense 
>of taking care of them."
>Thomas Jefferson
>
>
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