I'd like to get the numbers of those lights. Post them if you will, mfg too
and where they are sold.
Tnx
Dale, k9vuj
On 10, Feb 2014, at 13:36, Mike Ryan <mryan001@tampabay.rr.com> wrote:
> Sorry Jim but the power supplies that these lights are connected to are not
> always the case. I mentioned in an earlier post here about some 50w LED lamps
> which use 12 vot AC, that's AC. The power supply is clean. The BULBS have
> switching power supplies of some nature in them. LOEWS has a line of
> exterior landscaping lights which will pretty much drive you QRT. My
> neighbor has 10 of these in his yard. They are dirty from HF to at least
> 440mhz. When his outdoor lights timer goes ON, I am OFF. I'd be happy to
> post info on these again should someone care. - Mike
>
> -----Original Message----- From: David C. Hallam
> Sent: Monday, February 10, 2014 1:48 PM
> To: rfi@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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>
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