[RFI] Noise Level During Power Outage

[K9MA]

On 2/1/2023 12:51 PM, Jim Brown wrote:
> On 2/1/2023 4:52 AM, K9MA wrote:
>> Besides the preponderance of 120 Hz harmonics in the AM audio, the 
>> very broadband nature of line noise is usually the main indicator.
>
> 120 Hz is also a strong component of electronic noise generated by 
> power supplies and power control equipment. The audio spectrum is not 
> a great clue -- the RF/IF waterfall shows where the bodies are buried.
>
> 73, Jim K9YC
> _______________________________________________
>
That's true, but I have never seen broadband noise with 120 Hz harmonics 
in the AM audio which was NOT power line noise. And, alas, I've seen a 
lot of line noise.

73,

Scott K9MA


-- 
Scott  K9MA

k9ma at sdellington.us