[RFI] LED Bulbs

Jim Brown jim at audiosystemsgroup.com
Mon Feb 10 13:14:48 EST 2014


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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