[RFI] QRM from recessed lighting

[Christopher Wawak]

They are throughout the house - from 6' away from the radio in every room.
Generally antennas are ~75 feet away in the backyard, and another 20-40
feet up.

I'm beginning to suspect the RFI is installation specific!

On Wed, Nov 17, 2021 at 4:39 PM David Winarsky <david at winarsky.com> wrote:

> Unfortunately I installed Amico wafer LED's in my ham shack after testing
> the lights individually (hooked up to power and with an AM radio) and
> although they didn’t show any elevation in noise during my test, when I
> installed all 10 of them in my shack, there is 6-10db of noise to my
> antenna less than 50 ft away (and 70 ft up).
>
> I had also tested the Lithonia Wafer LED individually and DID notice an
> increase in noise, but never installed.
>
> @Christopher, how far away are they from your antenna?  I’m looking to
> replace the Amico’s with something else, but have yet to find a Wafer LED
> that is RFI free.
>
> David K6ZD
>
> > On Nov 15, 2021, at 7:12 AM, Christopher Wawak <kc2ieb at wawak.org> wrote:
> >
> > I put 6-inch Lithonia Wafer LED lights all over my house, and they make
> no
> > significant difference to my noise floor. There are at least 6 in
> > every room, and my shack has 8 in the ceiling. They're controlled by
> lutron
> > caseta dimmers, which are also not noisy. They are super simple to
> install
> > (wire it up, squeeze some clips, and its in the hole), and you can
> probably
> > find them to fit the existing holes.
> >
> > For what it's worth, I've had contact with both Lithonia and TCP
> > engineering (as well as Lutron!) with questions over these lights and got
> > great answers. Maybe reaching out to Torchstar might give some relief?
> >
> > The noisiest LEDs in my house were retrofit bulbs that went in recessed
> > cans. After replacing these with TCP brand, I had no RFI issues though
> they
> > still make an annoying audible buzzing noise that no one but I can hear.
> >
> > On Mon, Nov 15, 2021 at 8:46 AM <kq3f at comcast.net> wrote:
> >
> >> Apologies if this has come up before.
> >>
> >>
> >>
> >> We've recently renovated the basement and installed LED recessed
> lighting
> >> in
> >> the shack. They're Torchstar 3000K "warm" lights, made in China. When I
> set
> >> up my IC-7610 again, I noticed elevated noise levels on 15-10 meters.
> After
> >> thinking about it for a few minutes, I turned off the lights. Noise was
> >> gone. Turn the lights back on, noise returns. And so on.
> >>
> >>
> >>
> >> I suspect the noise is coming from the transformers. Any idea how to
> deal
> >> with this, or do I need to replace the lights with something else?
> Thanks
> >> in
> >> advance for any help.
> >>
> >>
> >>
> >> 73, Joe KQ3F
> >>
> >> _______________________________________________
> >> RFI mailing list
> >> RFI at contesting.com
> >> http://lists.contesting.com/mailman/listinfo/rfi
> >>
> > _______________________________________________
> > RFI mailing list
> > RFI at contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
>
>