Low cost software radio platform
ACARS decoder for GNURadio, for RTL-SDR, PlutoSDR or UHD receivers.
An open source Acars decoder with rtl_sdr frontend
#2 - Red Pitaya Ecosystem and Applications
Decode packet radio data
Funcube Dongle Pro+ Data Capture & Audio Output
A hamradio DSP tranceiver on a Cortex-M4 MCU (STM32F4xx)