[RFI] Broadband RFI on 10 meters

[K9MA]

At 02Z Oct. 16, the AM audio spectrum looks like this:




(Assuming the image gets through.)

It is much weaker than it was at 22Z, and I didn't hear the 1 kHz 
components then, but it is peaking in the same direction. The modulation 
frequency varies a bit.

I've seen something like this before, though I can't remember what it 
was: Broadband noise amplitude modulated at an audio frequency.

73,
Scott K9MA


On 10/15/2025 6:53 PM, Jim Brown wrote:
> On 10/15/2025 3:14 PM, K9MA wrote:
>> Any idea what kind of source could cause this kind of RFI?
>
> Can get a long time, wide frequency waterfall of the noise and email 
> it to a few of us?
>
> 73, Jim K9YC
>
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-- 
Scott  K9MA

k9ma at sdellington.us