
NOAA Weather Satellites: Why $30 Radios Can See Space
Key Takeaways Hobbyists routinely receive NOAA APT weather images from polar-orbiting satellites using low-cost RTL-SDR dongles, simple antennas, and free decoding software. NOAA APT downlinks are in the ~137 MHz band (examples: NOAA-15 ~137.62 MHz, NOAA-18 ~137.9125 MHz, NOAA-19 ~137.1 MHz); always verify current frequencies and status on NOAA/NESDIS/OSPO pages. Optical “lamp-to-lamp” communication (Li-Fi/VLC) appears […]
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