gr_filter_design(1) GUI for creating filters for GNU Radio Section 1 gnuradio bookworm source Description GR_FILTER_DESIGN NAME gr_filter_design - GUI for creating filters for GNU Radio SYNOPSIS gr_filter_design: [options] (input_filename) OPTIONS -h, --help show this help message and exit SEE ALSO gnuradio-companion(1) See Also gnuradio-companion(1)