Questions about noise in the sense of that inevitable component of any real signal. For questions about avoiding or eliminating interference from manmade sources, use [rfi] instead.
Questions tagged [noise]
64 questions
9
votes
2 answers
High 40m noise floor during the evening but quiet in the afternoon
I've been dealing with S7 static on 40 meters ever since I got started a few weeks ago. It's so bad that I have to use my RF ATT so that the static is not deafening.
I did some research about finding noise sources (mostly wall warts) and common…
Paul
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Rolling QRM from 3000-10000 kHz - What Is It?
Video
I was lucky to catch the QRM start this morning @ approximately 10 AM Pacific Standard time. It was wide, starting around 3000 kHz up to 10000 kHz.
It starts fast then slows to a crawl. The noise has pronounced high/low bumps as you'll see in…
user11702
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4
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1 answer
Color of radio noise?
Is typical background RF plus radio receiver electronics noise (wide-band audio) closer to white noise or pink (1/f) noise?
Does it depend on the demodulation scheme (AM/FS/SSB/etc.), if any, currently configured or the band being tuned?
hotpaw2
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Inquiry regarding thermal resistor noise
In the simplest form, how could thermal resistor noise be described? I've looked up online but just found the calculation part.
Max
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