GRC Bus Ports (Nicholas McCarthy) Bus ports in the GNU Radio Companion (GRC) allow ganging block input or output ports into a single port for display and connections. This simplifies flowgraph entry when dealing with blocks that work with an arbitrary number of streams. For further information, see: http://gnuradio.org/redmine/projects/gnuradio/wiki/Busports And see http://gnuradio.org/redmine/projects/gnuradio/wiki/ChangeLogV3_7_1