GiamMa-based researchers SDR R&D IoT: PU2CLR SI4735 SI473X Library for Arduino. Radio AM & SSB modes from 150kHz to 30MHz & FM mode from 64 to 108 MHz #SoftwareDefinedRadio #DIY #Maker #Ham #HamRadio #SI4735 #SI473X #Library #Arduino #Radio #RDS #HF #VHF