1.adswill / OnAirFree SDR receiver for macOS, Windows and Linux: digital TV (DVB-T/T2, DVB-C, DVB-S/S2, ATSC, ISDB-T, DTMB), DAB+, FM, DRM, aviation (ADS-B, ACARS, VDL2), satellites, GNSS, ham modes (FT8, PSK31, CW), digital voice, cell towers and a spectrum analyser. HackRF, RTL-SDR, Airspy, SDRplay, BladeRF, LimeSDR, Pluto, USRP.atscdabdigital-tvdvb-tdvb-t2hackrf+14 moreC++GPL-3.0701 total137 forks+676 starsfrom 25 · score 6.52
2.ESPARGOS / esp-sdrESP-SDR uses the undocumented raw I/Q capture functionality of ESP32 family chips to turn them into (low-duty-cycle) Software Defined Radiosesp32sdrCGPL-3.01.2K total170 forks+639 starsfrom 575 · score 6.46
3.Twotoz / C5VRXUltra-minimal, zero-CPU 5.8 GHz analog FPV video receiver using ESP32-C5 Wi-Fi 6 PHY MODEM_DIAG, BitScrambler WBFM demodulation & resistor DAC CVBSanalog-videocvbsdspesp-idfesp32-c5fpv+4 moreCGPL-3.0486 total74 forks+303 starsfrom 183 · score 5.72
4.gnss-sdr / gnss-sdrGNSS-SDR, an open-source software-defined GNSS receiversdrgnssc-plus-plussignal-processinggnuradiognss-sdr+5 moreC++GPL-3.02.3K total742 forks+30 starsfrom 2,291 · score 3.43
5.jopohl / urhArchivedUniversal Radio Hacker: Investigate Wireless Protocols Like A Bosssecuritywirelessiothackinghackrfrtl-sdr+9 morePythonGPL-3.013K total1.1K forks+21 starsfrom 12,576 · score 3.09
6.ChristopheJacquet / PiFmRdsFM-RDS transmitter using the Raspberry Pi's PWMCGPL-3.01.6K total350 forks+4 starsfrom 1,591 · score 1.61