Wed Dec 2 11:03:20 2009 options id usrp_rx_dpsk _enabled True title USRP RX DPSK author description window_size 1280, 1024 generate_options wx_gui category Custom run_options prompt run True realtime_scheduling _coordinate (12, 9) _rotation 0 variable id samps_per_sym _enabled True value 4 _coordinate (14, 79) _rotation 0 variable id bb_freq _enabled True value 2.45e9 _coordinate (18, 151) _rotation 0 variable id p2p _enabled True value 2.0 _coordinate (13, 314) _rotation 0 variable_slider id timing_alpha _enabled True label Timing Alpha value .1 min 0 max .5 num_steps 100 style wx.SL_HORIZONTAL converver float_converter grid_pos notebook _coordinate (759, 365) _rotation 0 gr_null_sink id gr_null_sink_0 _enabled True type byte vlen 1 _coordinate (815, 80) _rotation 0 variable_slider id costas_alpha _enabled True label Costas Alpha value 0.175 min 0 max .5 num_steps 100 style wx.SL_HORIZONTAL converver float_converter grid_pos notebook _coordinate (598, 367) _rotation 0 wxgui_fftsink2 id wxgui_fftsink2_0 _enabled True type complex title Receive Spectrum samp_rate samp_rate baseband_freq bb_freq y_per_div 10 y_divs 10 ref_level -40 ref_scale p2p fft_size 1024 fft_rate 15 peak_hold False average False avg_alpha 0 win None win_size grid_pos notebook _coordinate (383, 321) _rotation 0 variable id samp_rate _enabled True value 1e6/4 _coordinate (20, 234) _rotation 0 variable_slider id gain _enabled True label Gain value 20 min 0 max 70 num_steps 100 style wx.SL_HORIZONTAL converver float_converter grid_pos notebook _coordinate (152, 378) _rotation 0 usrp2_source_xxxx id usrp2_source_xxxx_0 _enabled True type complex interface mac_addr decimation int(100e6/samp_rate) frequency bb_freq lo_offset float('inf') gain gain _coordinate (158, 51) _rotation 0 usrp_simple_source_x id usrp_simple_source_x_0 _enabled False type complex format which 0 decimation int(64e6/samp_rate) frequency bb_freq lo_offset float('inf') gain gain side B rx_ant TX/RX hb_filters _coordinate (154, 218) _rotation 0 blks2_dxpsk2_demod id blks2_dxpsk2_demod_0 _enabled True type dqpsk samples_per_symbol samps_per_sym excess_bw 0.35 costas_alpha costas_alpha timing_alpha timing_alpha timing_max_dev 1.5 omega_relative_limit 0.005 gray_code True verbose False log False sync_out True _coordinate (487, 64) _rotation 0 wxgui_scopesink2 id wxgui_scopesink2_0 _enabled True type complex title Recovered DQPSK Constellation samp_rate samp_rate/4/20 v_scale 0 v_offset 0 t_scale 0 ac_couple False xy_mode True num_inputs 1 win_size grid_pos notebook _coordinate (760, 239) _rotation 180 gr_keep_one_in_n id gr_keep_one_in_n_0 _enabled True type complex n 20 vlen 1 _coordinate (873, 151) _rotation 0 usrp2_source_xxxx_0 wxgui_fftsink2_0 0 0 usrp2_source_xxxx_0 blks2_dxpsk2_demod_0 0 0 blks2_dxpsk2_demod_0 gr_null_sink_0 0 0 blks2_dxpsk2_demod_0 gr_keep_one_in_n_0 1 0 gr_keep_one_in_n_0 wxgui_scopesink2_0 0 0