SDR code

hardware requirements

• needs a gnuradio-supported SDR with 2.4MS/s samplerate
• needs a tuner with support for the DECT frequency range
• rtlsdr with E4000 tuner works
• rtlsdr with more popular R820T tuner does not work (can't tune to DECT frequency range)
• tested with bladeRF and rtlsdr w/ E4000 tuner
• should work with hackRF as well

software requirements

• needs GNUradio
• needs a dummy0 network device

usage

• make
• create dummy0 interface: sudo modprobe dummy or sudo ip link add dummy0 type dummy
• start the dummy0 interface: sudo ifconfig dummy0 up
• run dectrcv as root: sudo ./dectrcv
• start the SDR part:
  • If you use gnuradio version <= 3.7 : ./dectrx_37.py
  • If you use gnuradio version >= 3.8 : ./dectrx_38.py
• set channel, gain values and ppm
• enjoy the DECT packets in wireshark

multichannel

If you want to use the multichannel feature you have to adjust the number of channels in the dectrcv.c.

example