teawrecks It's not an SDR. All demodulation is done in hardware on the chip. It supports ASK, OOK, GFSK, 2-FSK, 4-FSK, and MSK. Pick a frequency and a modulation that you want to listen to and it will spit out a bitstream.
Software-defined radios sample the waveforms over the air and then spit that directly out to a host computer for processing in software.