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General Radio Discussion / QRM Question ~ 15000 KHZ to 50000 KHZ
« on: March 17, 2019, 1535 UTC »
I am in Southern Nevada and finding QRM spikes on my SDR that are also present on other SDRs in area (Southern California, etc). I am can see these noise signatures above 15000 KHZ spaced somewhat evenly all the way through 50000 KHZ.
When tuned in AM, it is like a rushing sound - every one sounds the same. The QRM is always present across multiple antennas and geographically distant SDRs.
I see the same QRM on a California SDR at exactly the same frequency. It appears day and night.
I would like to know the source of this QRM. Perhaps a natural source?
Broad view from my SDR
https://imgur.com/RYCFVpK
Close view from my SDR
https://imgur.com/J6Cqezs
Close view from Tokens Southern California SDR
https://imgur.com/rJeESnw
When tuned in AM, it is like a rushing sound - every one sounds the same. The QRM is always present across multiple antennas and geographically distant SDRs.
I see the same QRM on a California SDR at exactly the same frequency. It appears day and night.
I would like to know the source of this QRM. Perhaps a natural source?
Broad view from my SDR
https://imgur.com/RYCFVpK
Close view from my SDR
https://imgur.com/J6Cqezs
Close view from Tokens Southern California SDR
https://imgur.com/rJeESnw