I am trying to get the sample code for the ‘FM_receiver’ sample code working with my limeSDR and it seems not to pickup anything. Here’s some screenshots of my gnuradio and its output:
You need to add a “Signal Source” at the center frequency and multiply it by the LimeSuite source before the low pass filter or use the “Frequency Xlating FIR Filter”.
I just noticed that you have the decimation of your lowpass filter set to 100 - it should be set to 10 - or else your sample rate should be set to 20e6
Mine fails the Loopback tests also, but it was too late to return it. It would be nice to have one that passes all of the tests, but everything that I have tried (except the test) seems to works.