Freq Show: Raspberry Pi RTL-SDR Scanner

Have you ever wondered what's in the radio waves zipping invisibly around you every day?  Software-defined radio (SDR) is a great tool to explore radio signals using a computer and inexpensive radio tuner.  With SDR you can examime many radio signals such as FM radio, television, emergency & weather radio, citizen band (CB), and much more. Although dedicated SDR hardware like the HackRF allow you to tun ...

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