[RFI] LED Bulbs

[Dale]

David,

In a word - yes.  If the LEDs each have a switching power supply/driver, then changing to plain incandescent or halogen bulbs would eliminate all of those RFI generators.

73, Dale
WA9ENA


-----Original Message-----
>From: "David C. Hallam" <dhallam at knology.net>
>Sent: Feb 10, 2014 12:48 PM
>To: rfi at contesting.com
>Subject: Re: [RFI] LED Bulbs
>
>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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