• d_bw : gr::inspector::signal_marker
• d_center : gr::inspector::signal_marker
• d_freq : gr::inspector::signal_marker
• d_label : gr::inspector::signal_marker
• d_number : gr::inspector::signal_marker
• d_plot : gr::inspector::signal_marker
• d_unit : gr::inspector::signal_marker
• d_unittxt : gr::inspector::signal_marker
• d_zone : gr::inspector::signal_marker