Hello Elmore - The normal route to control variables in a running GNU
Radio script is via the XMLRPC Server.
It is usually run like this,
* Start GNU Radio (which includes a XMLRPC server block)
* Start the standalone Python script that connects to the XMLRPC
Server opened in the GNU Radio Flow.
Then the standalone Python script can control the running GNU Radio flow
graphs,
* The server provides access to the run, start, stop, wait functions
of the flow graph.
* The server also provides access to the variable callbacks in the
flow graph. Ex: If the variable is called freq, the function
provided by the server will be called set_freq(new_freq).
documentation page: https://wiki.gnuradio.org/index.php/XMLRPC_Server
Hope This Helps - Steve Hageman
