Using LimeSDR as a signal generator and spectrum analyzer

@gmcsor Depending on your needs, you may be able to just use GnuRadio Companion or Pothos Flow.

You should be able to create a flow graph with your Lime as

  • a source (ie transmitter), reading a file containing your signal, or using the available blocks to create the signal
  • a sink (ie receiver), displaying the spectrogram/waterfall

The LimeSDR-USB can have different sampling rates for RX and TX but are not completely unrelated (basically you can have TX = RX / 2^n, see Link between RX and TX sampling rates for more, but I recall also having issues in some cases). It can have completely different frequencies though.

I think with the LimeMini the RX and TX sampling rates must be the same.