Mon Jan 1 17:54:44 2018 options author window_size category [GRC Hier Blocks] comment description _enabled True _coordinate (8, 8) _rotation 0 generate_options qt_gui hier_block_src_path .: id top_block max_nouts 0 qt_qss_theme realtime_scheduling run_command {python} -u {filename} run_options prompt run True thread_safe_setters title variable comment Audio decimation after the quadrature demodulation _enabled True _coordinate (232, 844) _rotation 0 id audio_decimation value 2 variable comment The first stage decimation tries to decrease the sampling rate of the device in order to keep the CPU utilization of the next processing blocks in acceptable levels especially for embedded devices. _enabled True _coordinate (648, 828) _rotation 0 id first_stage_decimation value 4 variable comment Audio decimation after the quadrature demodulation _enabled True _coordinate (440, 844) _rotation 0 id initial_bandwidth value 100e3 variable comment _enabled True _coordinate (8, 160) _rotation 0 id samp_rate value 48000 variable comment SDR device TX sampling rate _enabled True _coordinate (80, 844) _rotation 0 id samp_rate_rx value 500e3 band_pass_filter beta 6.76 alias comment affinity decim 1 _enabled True type fir_filter_fff _coordinate (656, 412) _rotation 0 gain 6 high_cutoff_freq 4.2e3 id band_pass_filter_0 interp 1 low_cutoff_freq 500 maxoutbuf 0 minoutbuf 0 samp_rate samp_rate_rx/ ( first_stage_decimation * int(samp_rate_rx/ first_stage_decimation / initial_bandwidth)) / audio_decimation width 200 win firdes.WIN_HAMMING blocks_complex_to_mag alias comment affinity _enabled 1 _coordinate (568, 616) _rotation 180 id blocks_complex_to_mag_0 maxoutbuf 0 minoutbuf 0 vlen 1 blocks_wavfile_source alias comment affinity _enabled True file /home/sebastian/projects/satnogs/testbed/satnogs_164929_2018-06-20T14-47-18.wav _coordinate (96, 460) _rotation 0 id blocks_wavfile_source_0 maxoutbuf 0 minoutbuf 0 nchan 1 repeat False fir_filter_xxx alias comment affinity decim 2 _enabled True _coordinate (952, 460) _rotation 0 id fir_filter_xxx_1 maxoutbuf 0 minoutbuf 0 samp_delay 0 taps [0.5, 0.5] type fff hilbert_fc beta 6.76 alias comment affinity _enabled 1 _coordinate (792, 612) _rotation 180 id hilbert_fc_0 maxoutbuf 0 minoutbuf 0 num_taps 65 win firdes.WIN_HAMMING qtgui_waterfall_sink_x axislabels True bw 8000 alias fc 0 comment affinity _enabled True fftsize 2048 _coordinate (88, 708) gui_hint _rotation 180 grid True id qtgui_waterfall_sink_x_0 int_max 10 int_min -140 legend True alpha1 1.0 color1 0 label1 alpha10 1.0 color10 0 label10 alpha2 1.0 color2 0 label2 alpha3 1.0 color3 0 label3 alpha4 1.0 color4 0 label4 alpha5 1.0 color5 0 label5 alpha6 1.0 color6 0 label6 alpha7 1.0 color7 0 label7 alpha8 1.0 color8 0 label8 alpha9 1.0 color9 0 label9 maxoutbuf 0 minoutbuf 0 name "" nconnections 1 showports True freqhalf True type float update_time 0.10 wintype firdes.WIN_BLACKMAN_hARRIS rational_resampler_xxx alias comment affinity decim int((samp_rate_rx/ ( first_stage_decimation * int(samp_rate_rx/ first_stage_decimation / initial_bandwidth)) / audio_decimation)/2) _enabled True fbw 0 _coordinate (960, 588) _rotation 180 id rational_resampler_xxx_0 interp 4*4160 maxoutbuf 0 minoutbuf 0 taps type fff rational_resampler_xxx alias comment affinity decim 4 _enabled True fbw 0 _coordinate (336, 588) _rotation 180 id rational_resampler_xxx_0_0 interp 1 maxoutbuf 0 minoutbuf 0 taps type fff rational_resampler_xxx alias comment affinity decim 48000 _enabled 1 fbw 0 _coordinate (352, 444) _rotation 0 id rational_resampler_xxx_1 interp int(samp_rate_rx/ ( first_stage_decimation * int(samp_rate_rx/ first_stage_decimation / initial_bandwidth)) / audio_decimation) maxoutbuf 0 minoutbuf 0 taps type fff satnogs_noaa_apt_sink alias comment affinity _enabled True flip True _coordinate (88, 580) _rotation 180 id satnogs_noaa_apt_sink_0_0 filename_png decoded_data_file_path height 1800 width 2080 sync True band_pass_filter_0 fir_filter_xxx_1 0 0 blocks_complex_to_mag_0 rational_resampler_xxx_0_0 0 0 blocks_wavfile_source_0 rational_resampler_xxx_1 0 0 fir_filter_xxx_1 rational_resampler_xxx_0 0 0 hilbert_fc_0 blocks_complex_to_mag_0 0 0 rational_resampler_xxx_0 hilbert_fc_0 0 0 rational_resampler_xxx_0_0 qtgui_waterfall_sink_x_0 0 0 rational_resampler_xxx_0_0 satnogs_noaa_apt_sink_0_0 0 0 rational_resampler_xxx_1 band_pass_filter_0 0 0