Here's a link to the image:
https://sdellington.us/hr/RFI/10m_25.10.16.jpg
On 10/15/2025 9:05 PM, K9MA wrote:
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@sdellington.us
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