Hi all, For synchronization I did not add blocks because the QAM.py calls synchronization blocks from generic_mod file which already contains AGC, fll, polyphase clock synk, ... I thought that those bolcks are doing the job. So i just think to add FEC block because it is not a part of my flow-graph. Do you thinks that i should add synchronization block even it exists in QAM demod block? or just try to find the best parameters of timing, frequency, and phase in de QAM_demo block? Thanks a lot for help.
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