In this lab, you will build a FM Radio receiver and transmitter by using SDR USRP.

GNU Radio Blocks You need

Receiver:
  • UHD: USRP Source: capture signals from the air
  • Low Pass Filter: Carve out one FM channel from its adjacent channels
  • WBFM Receiver: take the signal, interpret as FM signal and output sound data
  • Audio Sink: play the sound data
  • Rational Resampler: change the sample rate
Transmitter:
  • Wav File Source: the audio file you want to send on FM channel
  • WBFM Transmit: Take the data and modulate as FM signal
  • Low Pass Filter: You only want the signal to transmit on one FM channel
  • UHD: USRP Sink: send signal to the air