Thanks Tom and Adeel for the suggestion. We have sorted out the problem and now our system is working at low data rates.
The real problem was with our *high pass filter* block. We are using it to eliminate the DC-shift present at the output of quad_demod block. But its not working at low data rates (As the frequency of the received symbols decreases with the decrease in the data rate). So now we have replaced the high pass filter with a simple subtractor to eliminate dc-shift. For synchronization we using same clock_recovery_mm and its working fine for large samples per symbols (we have tried till 9600 samples/symbol). Regards, Waqas -- View this message in context: http://gnuradio.4.n7.nabble.com/Problem-faced-with-clock-recovery-mm-at-low-data-rates-tp42591p42860.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio