The big box stores that sell electronics can and do switch products all the
time, and may keep the same model number. We have also seen quality-control
issues with products, so an occasional noisy unit, or noisy batch, can show up.
Hams sometimes have problems with noise from neighbors. With reasonable people,
hams can and do persuade neighbors to swap out noisy products. Some hams even
have neighbors ask about radio noise before they buy products. But if you do
manage to do that, and the neighbor buys a whole bunch of new stuff that is
just as noisy, it is not likely that you will secure any additional
cooperation. Not only test the model, but test each unit he will install, to
weed out the bad ones.
Ed
________________________________
From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> on behalf of K9MA
<k9ma@sdellington.us>
Sent: Sunday, October 11, 2020 10:20 PM
To: rfi@contesting.com <rfi@contesting.com>
Subject: Re: [RFI] Anyone Tested These LED Light Bars for RFI?
One problem is that even if a particular model is quiet, the next batch
of that model might not be.
I put a bunch of different LED fixtures in my house recently. Before I
installed them, I powered up each one close to where it was going to go
and listened for noise. All turned out to be quiet, at least at a noisy
urban QTH. I recommend such a test, before you throw away the receipt. I
did have to replace some of my neighbors' LED power supplies.
73,
Scott K9MA
On 10/11/2020 7:41 PM, D C _Mac_ Macdonald wrote:
> Let us all know if they are RF quiet!
>
> 73 - Mac, K2GKK/5
> Since 30 Nov 1953
> Oklahoma City, OK
> USAF (Retired) 61-81
> FAA (Retired) 94-10
>
> ________________________________
> From: RFI <rfi-bounces+k2gkk=hotmail.com@contesting.com> on behalf of
> qrv@kd4e.com <qrv@kd4e.com>
> Sent: Sunday, October 11, 2020 18:45
> To: RFI@contesting.com <RFI@contesting.com>
> Subject: [RFI] Anyone Tested These LED Light Bars for RFI?
>
> https://www.amazon.com/Integrated-Fixture-Linkable-Fluorescent-Replacement/dp/B07TYJ22QJ/
>
> I need a few around the radio room and shop and 3', 15w, 1500 lumens
> @6000k meets the need well.
>
> I know I should be suspicious of built-in 85~265VAC 50/60Hz power
> supply, but maybe?
>
> Thanks, David KD4E
>
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--
Scott K9MA
k9ma@sdellington.us
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