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Can Rx FMCOMMS2 receives constant value?

Question asked by mr_nazrin on Apr 5, 2018
Latest reply on Apr 6, 2018 by mhennerich

Hi Analog Team,


I just figure out that if I sending a sine waveform from TX1 to RX1 of fmcomms2 ( loopback configuration) , I can verify those signal correctly as shown in gnuradio Figure below.

sine wave

But I'm bit puzzled that  if my processing block send a constant value that consist of real and imaginary data, then on RX side, its seem fail to capture the those data.

constant value


I also verify by both cyclic mode, True and False but both gives same behaviour. My sample rate 2.084M, Manual gain 5, buffer size 10.24k. 


Can we rectify it?


Thank You