Hi everyone! I m trying to build a simple communication system with trellis code and gmsk modulation. Before the scrambler and descrambler blocks were added into the flow graph, the system worked well but after that the transmission failed. I've read the document of the block but still cant not figure out where the problem is.This is my flow graph and if you know how to use the scrambler plz tell me. Every help will be appreciate!! <http://gnuradio.4.n7.nabble.com/file/n59649/loop_working.png>
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