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[RFI] Dancing Carriers

To: <rfi@contesting.com>
Subject: [RFI] Dancing Carriers
From: <alex@kr1st.com>
Date: Mon, 19 Dec 2022 14:57:22 -0500
List-post: <mailto:rfi@contesting.com>
Hi there,

 

I'm trying to figure out what is generating these "dancing carriers" on 2m:

 

https://youtu.be/gKA0P2c-034

 

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. 

 

73,

--Alex KR1ST

 

 

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