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Weather balloons, Russian "buzzer" stations, and more: 50 things you can listen to with a $30 software defined radio

Ellsworth Toohey
Sep 16, 2025
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RTL-SDR Blog V4 dongle/rtl-sdr.com

A tech enthusiast named Blinry took a week-long dive into the world of software defined radio (SDR), discovering the invisible universe of electromagnetic signals surrounding us. Using a $30 USB dongle and some wire, he accessed a treasure trove of radio communications.

Blinry decoded images from weather satellites, view…

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