[RFI] Dancing Carriers

[Lloyd Berg]

Possibly a fancy automated holiday light display in your home or
neighborhood that is powered by switching mode power supplies?

On Mon, Dec 19, 2022 at 1:58 PM <alex at kr1st.com> wrote:

> Hi there,
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> I'm trying to figure out what is generating these "dancing carriers" on 2m:
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> https://youtu.be/gKA0P2c-034
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> I see them om on 6m and 1.25m as well. Has anyone come across this before
> and can share a hint at what may be causing this? Since the signature looks
> to be easily recognizable to someone who ran across this before I thought
> I'd ask on this list.
>
>
>
> I recorded this a few minutes ago using a RSP2Pro using SDR Console and a
> CX-333 antenna at just 20ft or so. I have the gain on the RSP2 very low as
> to rule out any overloading. The beacon you are hearing is W3CCX/b on
> 144.300 MHz. The carriers are not modulated and are there 24/7. They are
> 118.5 kHz apart. I also see it on the IC-9700 with a DCI-146-4H bandpass
> filter so I don't think it's some mixing product caused by a strong out of
> band signal.
>
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>
> 73,
>
> --Alex KR1ST
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