blinry on Nostr: 48: See how high you can go in the frequency spectrum My SDR stick has a maximum ...
48: See how high you can go in the frequency spectrum
My SDR stick has a maximum sampling rate of 3.2 megasamples/s, so by Nyquist's theorem, that means that the highest frequency it can theoretically measure is 1.6 GHz.
It seems pretty quiet up there, probably because I lack proper antennas. I found these three lines in an amateur band, but they probably originate from the stick itself, or another device.
So the highest-frequency thing I've received is ADS-B at 1090 MHz (see entry #5)! 🎉
Published at
2024-03-10 18:43:32Event JSON
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"content": "48: See how high you can go in the frequency spectrum\n\nMy SDR stick has a maximum sampling rate of 3.2 megasamples/s, so by Nyquist's theorem, that means that the highest frequency it can theoretically measure is 1.6 GHz.\n\nIt seems pretty quiet up there, probably because I lack proper antennas. I found these three lines in an amateur band, but they probably originate from the stick itself, or another device.\n\nSo the highest-frequency thing I've received is ADS-B at 1090 MHz (see entry #5)! 🎉\n\nhttps://assets.chaos.social/media_attachments/files/112/072/834/938/224/263/original/833875a5a00f9c32.png",
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