Huge messy reorg to move things into the GR3.7 paradigm. Mostly in effort to get

SWIG magic to work on member functions. Can change sample rate on the fly now.

apps/modes_gui

@@ -137,6 +137,10 @@ class mainwindow(QtGui.QMainWindow):
         self.ui.list_aircraft.selectionModel().currentRowChanged.connect(self.update_map_highlight)
         self.datamodel.dataChanged.connect(self.unmapped_widgets_dataChanged)
 
+        #hook up parameter-changed signals so we can change gain, rate, etc. while running
+        self.ui.combo_rate.currentIndexChanged['QString'].connect(self.update_sample_rate)
+#        self.ui.
+
         #hook up live data text box update signal
         self.live_data_changed_signal.connect(self.on_append_live_data)
 
@@ -145,6 +149,10 @@ class mainwindow(QtGui.QMainWindow):
 
         self.prefs = None
 
+    def update_sample_rate(self, rate):
+        if self.running:
+            self._radio.set_rate(int(float(rate)*1e6))
+
 ############ widget update functions for non-mapped widgets ############
     def update_heading_widget(self, index):
         if index.model() is not None:

apps/modes_rx

@@ -86,8 +86,9 @@ def main():
     sbs1port = air_modes.output_sbs1(cpr_dec, 30003, publisher)
 
   tb.run()
+  time.sleep(0.2)
   tb.close()
-
+  time.sleep(0.2)
   relay.close()
 
   if options.kml is not None: