Hello All, I am currently having a problem with packet transmission similar to the one Tom Rondeau had mentioned in his February 14th 2006 post titled 'Dropped Packets.' However, there was no general resolution given there.
When I run the dbpsk/dqpsk/gmsk transmitter/receiver under the gnuradio-examples directory (revision 4796), it always seems to drop the last packet, leading me to believe this hasn't been fully fixed. Using the --discontinuous option produces the same result. Even adding a time.sleep(1) before fg.wait() doesn't seem to fix it, as suggested by that post. To be sure that all of the data was being written out to USRP when running my application, I put some print statements in usrp_basic_tx::write(), and the correct number of samples appear there (I can also verify that it is a multiple of 128). At the receiving end of my application, I can observe that the received power drops to the level of normal background noise somewhere before the final packet is received. I'm currently using the USRP (rev 4) with an RFX2400 daughtercard. I have set_auto_tr(True) on both transmitter and receiver. Has anyone experienced or been able to resolve this? Thanks, Rich _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
