Software Sefined Radio(SDR)

GUNRadio is a free & open-source software development toolkit that provides signal processing blocks to implement software radios.

• Documentation
• Build instructions
• Tutorials
• GNURadio's github site
• Suggested Readings

RTLSDR is a very cheap ~$25 Realtek RTL2832 based DVB dongle that can be used as a SDR receiver (no internet required)

• Amazon listing
• OSMOCONS github site for rtl-sdr and gr-osmosdr
• rtl-sdr software mirror
• rtl-sdr wiki site
• OsmoSDR block mirror
• gr-osmosdr wiki for blocks
• Official osmocom git repository
• More information on SDR blocks
• Linux Quick start guide
• rtl-sdr supported software interfaces:linrad, gqrx, CubicSDR, shinysdr, openwebrx, sdrangelove, kukuruku, zeus-radio
• Ear-to-Ear-Oak A cross platform Python frequency scanning GUI for USB TV dongles, using the OsmoSDR rtl-sdr library. In other words a cheap, simple Spectrum Analyser.
• simple_ra Simple (hah) integrated radio astronomy receiver for Gnu Radio