I don’t believe LED shop lights have a ballast.
I am not sure if the noise is in the power line or is being radiated directly.
I took my portable SW radio out there and it picked up the noise very nicely.
Of course the line cord could be the antenna too.
Do you recommend any particular filters? I should try one and see if it helps
then if it does I would install on the other three. Sure is nice lighting,
makes my shop really light up.
tnx
Dale, K9VUJ
On 09, Jun 2018, at 20:39, Stephanie WX3K via RFI <rfi@contesting.com> wrote:
Install EMI filters on the lights. Most of the ballasts these days are noisy. I
had an issue on 6 meters until i installed EMI filters inline.
A typical filter costs about $10-15
Stephanie
> On Jun 9, 2018, at 2:12 PM, Dave Cole (NK7Z) <dave@nk7z.net> wrote:
>
> If you have a screen capture of the RFI, using an SDR, or P3, could you send
> it to me please? I would like to add it to the ever growing RFI snapshots
> web page I have.
>
> 73s and thanks,
> Dave
> NK7Z
> https://www.nk7z.net
>
>> On 06/09/2018 11:01 AM, Dale Johnson wrote:
>> I found some nice shop lights for under $20 so I purchased 4 for the garage
>> shop. After installing them I found lots of noise on 20 meters with peaks
>> and valleys, to make sure the new shop lights were the culprit I turned them
>> off and then the 20 meter band was quiet again. These are Smart Electrican
>> brand, model number LSL3300L42WH. These are distributed by Menard, Inc. Eau
>> Claire Wisconsin. Made in China. I purchased a couple more for my basement
>> shop, but I’m going to return those.
>> Anybody know of a quiet brand of LED shop lights?
>> Tnx 73
>> Dale, K9VUJ
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