[Discuss-gnuradio] constellation sink block in GRC

[Guanbo Zheng]

Hi,

Anything knows how to set up the parameters at Constellation sink in GRC, eg., theta, Alpha, max frequency, Mu,

I am doing some basic tests in GRC+two USRP2, trying to see how the constellation look like. But it does not show good for DBPSK/DQPSK. especially at RX, after downconverting from high frequency(2.4GHz), it seems to shows NOTHING but noise..But read from FFT sink, it did show the signal.

I tried to find some documents on gnuradio+GRC, but nothing much on that. 

Thanks

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Regards,
Guanbo