[RFI] RFI Signature

Jim Brown jim at audiosystemsgroup.com
Wed Nov 26 20:05:50 EST 2025


On 11/26/2025 4:28 PM, Jim Brown wrote:
> Thanks Mike. It's interesting that the harmonics get much weaker above 
> the 9th, but do keep on going. And I see a bit of triplen with the 3rd 
> being stronger. Can you plot with linear frequency?

Just realized that I have Audacity on this computer, so did it myself. 
If I plot it linear frequency and play with the vertical scale, I see 
stuff all the way up to 9.7 kHz

k9yc.com/W4DD_Noise.png

73, Jim K9YUC




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