Hello everyone, I am trying to capture a few seconds of over the air HDTV on a file and then decode using the files in gr-atsc module according to the instructions in the README at gr-atsc/src/python. I am using the following command to capture the signals off the air: /usrp_rx_cfile.py -R B -d 10 -f 587M -g 75 test_file, where 587MHz is the center of the 584-590 MHZ UHF band. I can successfully capture about 20 seconds of data without any overruns. After I set up the pipes and start the equalizer, it is unable to find field syncs. At some gain settings it initially detects field sync but loses it later on. Am I lacking enough gain/sensitivity in the front-end of the TV_RX? If so would an lna at the antenna help? Or could I be doing something else that prevents the equalizer to find field sync? I believe a number of folks must have decoded over the air hdtv signals using the TV_RX and USRP. Any suggestions and help appreciated.
Thanks, Nirali _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
