On Sat, Nov 03, 2007 at 01:28:09AM -0400, George Nychis wrote: > Hey all, > > Is the proper way to reconstruct the original data back from modulating > and demodulating with GMSK (in loopback fashion) by packing the > outputted bits using gr.unpacked_to_packed_bb()? Since there is 1 bit > per byte (LSB), I'm assuming it needs packing. Whenever I add the > following block in the flowgraph: > gr.unpacked_to_packed_bb(self.bits_per_symbol(),gr.GR_MSB_FIRST) > > ... where bits_per_symbol() returns 1, I don't quite get back the > original data before modulation. Some of the bytes are correct, but > most seem like garbage. What's my misunderstanding? > > Thanks! > George
George, I suggest that you start by understanding the existing benchmark_tx/benchmark_rx and/or benchmark_loopback code. They handle all of these details. These scripts can be found in gnuradio-examples/python/digital. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
