Fixing up loopback benchmark program for new DBPSK receiver.

3 files changed, 327 insertions, 308 deletions

diff --git a/gnuradio-examples/python/digital/benchmark_qt_loopback2.py b/gnuradio-examples/python/digital/benchmark_qt_loopback2.py
index 9e4e8c712..4050d498b 100755
--- a/gnuradio-examples/python/digital/benchmark_qt_loopback2.py
+++ b/gnuradio-examples/python/digital/benchmark_qt_loopback2.py
@@ -52,9 +52,9 @@ class dialog_box(QtGui.QMainWindow):
         self.set_frequency(self.fg.frequency_offset())
         self.set_time_offset(self.fg.timing_offset())
 
-        self.set_alpha_time(self.fg.rx_timing_gain_alpha())
-        self.set_beta_time(self.fg.rx_timing_gain_beta())
-        self.set_alpha_phase(self.fg.rx_phase_gain_alpha())
+        self.set_gain_clock(self.fg.rx_gain_clock())
+        self.set_gain_phase(self.fg.rx_gain_phase())
+        self.set_gain_freq(self.fg.rx_gain_freq())
 
         # Add the qtsnk widgets to the hlayout box
         self.gui.sinkLayout.addWidget(snkTx)
@@ -75,12 +75,12 @@ class dialog_box(QtGui.QMainWindow):
         self.connect(self.gui.timeEdit, QtCore.SIGNAL("editingFinished()"),
                      self.timeEditText)
 
-        self.connect(self.gui.alphaTimeEdit, QtCore.SIGNAL("editingFinished()"),
-                     self.alphaTimeEditText)
-        self.connect(self.gui.betaTimeEdit, QtCore.SIGNAL("editingFinished()"),
-                     self.betaTimeEditText)
-        self.connect(self.gui.alphaPhaseEdit, QtCore.SIGNAL("editingFinished()"),
-                     self.alphaPhaseEditText)
+        self.connect(self.gui.gainClockEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.gainClockEditText)
+        self.connect(self.gui.gainPhaseEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.gainPhaseEditText)
+        self.connect(self.gui.gainFreqEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.gainFreqEditText)
 
         # Build a timer to update the packet number and PER fields
         self.update_delay = 250  # time between updating packet rate fields
@@ -145,6 +145,16 @@ class dialog_box(QtGui.QMainWindow):
 
 
     # Accessor functions for Gui to manipulate receiver parameters
+    def set_gain_clock(self, gain):
+        self.gui.gainClockEdit.setText(QtCore.QString("%1").arg(gain))
+
+    def set_gain_phase(self, gain_phase):
+        self.gui.gainPhaseEdit.setText(QtCore.QString("%1").arg(gain_phase))
+
+    def set_gain_freq(self, gain_freq):
+        self.gui.gainFreqEdit.setText(QtCore.QString("%1").arg(gain_freq))
+        
+
     def set_alpha_time(self, alpha):
         self.gui.alphaTimeEdit.setText(QtCore.QString("%1").arg(alpha))
 
@@ -154,24 +164,24 @@ class dialog_box(QtGui.QMainWindow):
     def set_alpha_phase(self, alpha):
         self.gui.alphaPhaseEdit.setText(QtCore.QString("%1").arg(alpha))
 
-    def alphaPhaseEditText(self):
+    def gainPhaseEditText(self):
         try:
-            alpha = self.gui.alphaPhaseEdit.text().toDouble()[0]
-            self.fg.set_rx_phase_gain_alpha(alpha)
+            gain_phase = self.gui.gainPhaseEdit.text().toDouble()[0]
+            self.fg.set_rx_gain_phase(gain_phase)
         except RuntimeError:
             pass
 
-    def alphaTimeEditText(self):
+    def gainClockEditText(self):
         try:
-            alpha = self.gui.alphaTimeEdit.text().toDouble()[0]
-            self.fg.set_rx_timing_gain_alpha(alpha)
+            gain = self.gui.gainClockEdit.text().toDouble()[0]
+            self.fg.set_rx_gain_clock(gain)
         except RuntimeError:
             pass
 
-    def betaTimeEditText(self):
+    def gainFreqEditText(self):
         try:
-            beta = self.gui.betaTimeEdit.text().toDouble()[0]
-            self.fg.set_rx_timing_gain_beta(beta)
+            gain = self.gui.gainFreqEdit.text().toDouble()[0]
+            self.fg.set_rx_gain_freq(gain)
         except RuntimeError:
             pass
 
@@ -186,7 +196,7 @@ class dialog_box(QtGui.QMainWindow):
             per = 0
         self.gui.pktsRcvdEdit.setText(QtCore.QString("%1").arg(n_rcvd))
         self.gui.pktsCorrectEdit.setText(QtCore.QString("%1").arg(n_right))
-        self.gui.perEdit.setText(QtCore.QString("%1").arg(per))
+        self.gui.perEdit.setText(QtCore.QString("%1").arg(per, 0, 'e', 4))
 
 
 
@@ -218,9 +228,9 @@ class my_top_block(gr.top_block):
         self.rxpath = receive_path(demod_class, rx_callback, options)
 
         # FIXME: do better exposure to lower issues for control
-        self._timing_gain_alpha = self.rxpath.packet_receiver._demodulator._timing_alpha
-        self._timing_gain_beta = self.rxpath.packet_receiver._demodulator._timing_beta
-        self._phase_gain_alpha = self.rxpath.packet_receiver._demodulator._costas_alpha
+        self._gain_clock = self.rxpath.packet_receiver._demodulator._timing_alpha
+        self._gain_phase = self.rxpath.packet_receiver._demodulator._costas_alpha
+        self._gain_freq  = self.rxpath.packet_receiver._demodulator._freq_alpha
 
         if channelon:
             self.channel = gr.channel_model(self._noise_voltage,
@@ -254,16 +264,18 @@ class my_top_block(gr.top_block):
 
                 self.snk_tx.set_frequency_axis(-80, 0)
                 self.snk_rx.set_frequency_axis(-60, 20)
-            
-                # Connect to the QT sinks
-                # FIXME: make better exposure to receiver from rxpath
+
                 self.freq_recov = self.rxpath.packet_receiver._demodulator.freq_recov
                 self.phase_recov = self.rxpath.packet_receiver._demodulator.phase_recov
                 self.time_recov = self.rxpath.packet_receiver._demodulator.time_recov
-                self.phase_recov.set_alpha(self._phase_gain_alpha)
-                self.phase_recov.set_beta(0.25*self._phase_gain_alpha*self._phase_gain_alpha)
-                self.time_recov.set_alpha(self._timing_gain_alpha)
-                self.time_recov.set_beta(self._timing_gain_beta)
+                self.freq_recov.set_alpha(self._gain_freq)
+                self.phase_recov.set_alpha(self._gain_phase)
+                self.phase_recov.set_beta(0.25*self._gain_phase*self._gain_phase)
+                self.time_recov.set_alpha(self._gain_clock)
+                self.time_recov.set_beta(0.25*self._gain_clock*self._gain_clock)
+
+                # Connect to the QT sinks
+                # FIXME: make better exposure to receiver from rxpath
                 self.connect(self.channel, self.snk_tx)
                 self.connect(self.phase_recov, self.snk_rx)
                 #self.connect(self.freq_recov, self.snk_rx)
@@ -323,32 +335,39 @@ class my_top_block(gr.top_block):
 
 
     # Receiver Parameters
-    def rx_timing_gain_alpha(self):
-        return self._timing_gain_alpha
+    def rx_gain_clock(self):
+        return self._gain_clock
 
-    def rx_timing_gain_beta(self):
-        return self._timing_gain_beta
-    
-    def set_rx_timing_gain_alpha(self, gain):
-        self._timing_gain_alpha = gain
-        self.time_recov.set_alpha(self._timing_gain_alpha)
+    def rx_gain_clock_beta(self):
+        return self._gain_clock_beta
 
-    def set_rx_timing_gain_beta(self, gain):
-        self._timing_gain_beta = gain
-        self.time_recov.set_beta(self._timing_gain_beta)
+    def set_rx_gain_clock(self, gain):
+        self._gain_clock = gain
+        self._gain_clock_beta = .25 * self._gain_clock * self._gain_clock
+        self.rxpath.packet_receiver._demodulator.time_recov.set_alpha(self._gain_clock)
+        self.rxpath.packet_receiver._demodulator.time_recov.set_beta(self._gain_clock_beta)
 
-    def rx_phase_gain_alpha(self):
-        return self._phase_gain_alpha
+    def rx_gain_phase(self):
+        return self._gain_phase
 
-    def rx_phase_gain_beta(self):
-        return self._phase_gain_beta
+    def rx_gain_phase_beta(self):
+        return self._gain_phase_beta
     
-    def set_rx_phase_gain_alpha(self, alpha):
-        self._phase_gain_alpha = alpha
-        self._phase_gain_beta = .25 * self._phase_gain_alpha * self._phase_gain_alpha
-        self.phase_recov.set_alpha(self._phase_gain_alpha)
-        self.phase_recov.set_beta(self._phase_gain_beta)
+    def set_rx_gain_phase(self, gain_phase):
+        self._gain_phase = gain_phase
+        self._gain_phase_beta = .25 * self._gain_phase * self._gain_phase
+        self.rxpath.packet_receiver._demodulator.phase_recov.set_alpha(self._gain_phase)
+        self.rxpath.packet_receiver._demodulator.phase_recov.set_beta(self._gain_phase_beta)
+
+
+    def rx_gain_freq(self):
+        return self._gain_freq
 
+    def set_rx_gain_freq(self, gain_freq):
+        self._gain_freq = gain_freq
+        #self._gain_freq_beta = .25 * self._gain_freq * self._gain_freq
+        self.rxpath.packet_receiver._demodulator.freq_recov.set_alpha(self._gain_freq)
+        #self.rxpath.packet_receiver._demodulator.freq_recov.set_beta(self._gain_fre_beta)
 
 
 # /////////////////////////////////////////////////////////////////////////////
diff --git a/gnuradio-examples/python/digital/qt_digital_window2.py b/gnuradio-examples/python/digital/qt_digital_window2.py
index 20502508d..98745dfe8 100644
--- a/gnuradio-examples/python/digital/qt_digital_window2.py
+++ b/gnuradio-examples/python/digital/qt_digital_window2.py
@@ -2,7 +2,7 @@
 
 # Form implementation generated from reading ui file 'qt_digital_window2.ui'
 #
-# Created: Sun Dec 20 22:08:51 2009
+# Created: Sat Jan  2 16:42:30 2010
 #      by: PyQt4 UI code generator 4.4.3
 #
 # WARNING! All changes made in this file will be lost!
@@ -17,21 +17,25 @@ class Ui_DigitalWindow(object):
         self.centralwidget.setObjectName("centralwidget")
         self.gridLayout = QtGui.QGridLayout(self.centralwidget)
         self.gridLayout.setObjectName("gridLayout")
-        self.verticalLayout = QtGui.QVBoxLayout()
-        self.verticalLayout.setObjectName("verticalLayout")
-        self.pauseButton = QtGui.QPushButton(self.centralwidget)
-        self.pauseButton.setMinimumSize(QtCore.QSize(80, 0))
-        self.pauseButton.setMaximumSize(QtCore.QSize(80, 16777215))
-        self.pauseButton.setObjectName("pauseButton")
-        self.verticalLayout.addWidget(self.pauseButton)
-        spacerItem = QtGui.QSpacerItem(20, 60, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Fixed)
-        self.verticalLayout.addItem(spacerItem)
-        self.closeButton = QtGui.QPushButton(self.centralwidget)
-        self.closeButton.setMinimumSize(QtCore.QSize(80, 0))
-        self.closeButton.setMaximumSize(QtCore.QSize(80, 16777215))
-        self.closeButton.setObjectName("closeButton")
-        self.verticalLayout.addWidget(self.closeButton)
-        self.gridLayout.addLayout(self.verticalLayout, 2, 5, 1, 1)
+        self.verticalLayout_5 = QtGui.QVBoxLayout()
+        self.verticalLayout_5.setObjectName("verticalLayout_5")
+        self.sinkFrame = QtGui.QFrame(self.centralwidget)
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.sinkFrame.sizePolicy().hasHeightForWidth())
+        self.sinkFrame.setSizePolicy(sizePolicy)
+        self.sinkFrame.setMinimumSize(QtCore.QSize(500, 550))
+        self.sinkFrame.setFrameShape(QtGui.QFrame.StyledPanel)
+        self.sinkFrame.setFrameShadow(QtGui.QFrame.Raised)
+        self.sinkFrame.setObjectName("sinkFrame")
+        self.gridLayout_2 = QtGui.QGridLayout(self.sinkFrame)
+        self.gridLayout_2.setObjectName("gridLayout_2")
+        self.sinkLayout = QtGui.QHBoxLayout()
+        self.sinkLayout.setObjectName("sinkLayout")
+        self.gridLayout_2.addLayout(self.sinkLayout, 1, 0, 1, 1)
+        self.verticalLayout_5.addWidget(self.sinkFrame)
+        self.gridLayout.addLayout(self.verticalLayout_5, 0, 0, 1, 6)
         self.channelModeBox = QtGui.QGroupBox(self.centralwidget)
         sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
         sizePolicy.setHorizontalStretch(0)
@@ -73,48 +77,21 @@ class Ui_DigitalWindow(object):
         self.timeEdit.setObjectName("timeEdit")
         self.formLayout_2.setWidget(2, QtGui.QFormLayout.FieldRole, self.timeEdit)
         self.gridLayout.addWidget(self.channelModeBox, 2, 1, 1, 1)
-        self.verticalLayout_2 = QtGui.QVBoxLayout()
-        self.verticalLayout_2.setObjectName("verticalLayout_2")
-        self.sysBox = QtGui.QGroupBox(self.centralwidget)
-        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.sysBox.sizePolicy().hasHeightForWidth())
-        self.sysBox.setSizePolicy(sizePolicy)
-        self.sysBox.setMinimumSize(QtCore.QSize(240, 60))
-        self.sysBox.setMaximumSize(QtCore.QSize(240, 16777215))
-        self.sysBox.setObjectName("sysBox")
-        self.formLayoutWidget = QtGui.QWidget(self.sysBox)
-        self.formLayoutWidget.setGeometry(QtCore.QRect(10, 20, 211, 31))
-        self.formLayoutWidget.setObjectName("formLayoutWidget")
-        self.formLayout = QtGui.QFormLayout(self.formLayoutWidget)
-        self.formLayout.setSizeConstraint(QtGui.QLayout.SetFixedSize)
-        self.formLayout.setVerticalSpacing(20)
-        self.formLayout.setObjectName("formLayout")
-        self.sampleRateEdit = QtGui.QLineEdit(self.formLayoutWidget)
-        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.sampleRateEdit.sizePolicy().hasHeightForWidth())
-        self.sampleRateEdit.setSizePolicy(sizePolicy)
-        self.sampleRateEdit.setMinimumSize(QtCore.QSize(60, 26))
-        self.sampleRateEdit.setMaximumSize(QtCore.QSize(80, 26))
-        self.sampleRateEdit.setObjectName("sampleRateEdit")
-        self.formLayout.setWidget(0, QtGui.QFormLayout.FieldRole, self.sampleRateEdit)
-        self.sampleRateLabel = QtGui.QLabel(self.formLayoutWidget)
-        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
-        sizePolicy.setHorizontalStretch(0)
-        sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.sampleRateLabel.sizePolicy().hasHeightForWidth())
-        self.sampleRateLabel.setSizePolicy(sizePolicy)
-        self.sampleRateLabel.setMinimumSize(QtCore.QSize(0, 20))
-        self.sampleRateLabel.setMaximumSize(QtCore.QSize(16777215, 20))
-        self.sampleRateLabel.setObjectName("sampleRateLabel")
-        self.formLayout.setWidget(0, QtGui.QFormLayout.LabelRole, self.sampleRateLabel)
-        self.verticalLayout_2.addWidget(self.sysBox)
-        spacerItem1 = QtGui.QSpacerItem(20, 60, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Fixed)
-        self.verticalLayout_2.addItem(spacerItem1)
-        self.gridLayout.addLayout(self.verticalLayout_2, 2, 0, 1, 1)
+        self.verticalLayout = QtGui.QVBoxLayout()
+        self.verticalLayout.setObjectName("verticalLayout")
+        self.pauseButton = QtGui.QPushButton(self.centralwidget)
+        self.pauseButton.setMinimumSize(QtCore.QSize(80, 0))
+        self.pauseButton.setMaximumSize(QtCore.QSize(80, 16777215))
+        self.pauseButton.setObjectName("pauseButton")
+        self.verticalLayout.addWidget(self.pauseButton)
+        spacerItem = QtGui.QSpacerItem(20, 60, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Fixed)
+        self.verticalLayout.addItem(spacerItem)
+        self.closeButton = QtGui.QPushButton(self.centralwidget)
+        self.closeButton.setMinimumSize(QtCore.QSize(80, 0))
+        self.closeButton.setMaximumSize(QtCore.QSize(80, 16777215))
+        self.closeButton.setObjectName("closeButton")
+        self.verticalLayout.addWidget(self.closeButton)
+        self.gridLayout.addLayout(self.verticalLayout, 2, 5, 1, 1)
         self.rxBox_2 = QtGui.QGroupBox(self.centralwidget)
         sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
         sizePolicy.setHorizontalStretch(0)
@@ -156,27 +133,50 @@ class Ui_DigitalWindow(object):
         self.perEdit.setObjectName("perEdit")
         self.formLayout_4.setWidget(2, QtGui.QFormLayout.FieldRole, self.perEdit)
         self.gridLayout.addWidget(self.rxBox_2, 2, 3, 1, 1)
-        spacerItem2 = QtGui.QSpacerItem(20, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
-        self.gridLayout.addItem(spacerItem2, 2, 4, 1, 1)
-        self.verticalLayout_5 = QtGui.QVBoxLayout()
-        self.verticalLayout_5.setObjectName("verticalLayout_5")
-        self.sinkFrame = QtGui.QFrame(self.centralwidget)
-        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)
+        spacerItem1 = QtGui.QSpacerItem(20, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
+        self.gridLayout.addItem(spacerItem1, 2, 4, 1, 1)
+        self.verticalLayout_2 = QtGui.QVBoxLayout()
+        self.verticalLayout_2.setObjectName("verticalLayout_2")
+        self.sysBox = QtGui.QGroupBox(self.centralwidget)
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
         sizePolicy.setHorizontalStretch(0)
         sizePolicy.setVerticalStretch(0)
-        sizePolicy.setHeightForWidth(self.sinkFrame.sizePolicy().hasHeightForWidth())
-        self.sinkFrame.setSizePolicy(sizePolicy)
-        self.sinkFrame.setMinimumSize(QtCore.QSize(500, 550))
-        self.sinkFrame.setFrameShape(QtGui.QFrame.StyledPanel)
-        self.sinkFrame.setFrameShadow(QtGui.QFrame.Raised)
-        self.sinkFrame.setObjectName("sinkFrame")
-        self.gridLayout_2 = QtGui.QGridLayout(self.sinkFrame)
-        self.gridLayout_2.setObjectName("gridLayout_2")
-        self.sinkLayout = QtGui.QHBoxLayout()
-        self.sinkLayout.setObjectName("sinkLayout")
-        self.gridLayout_2.addLayout(self.sinkLayout, 1, 0, 1, 1)
-        self.verticalLayout_5.addWidget(self.sinkFrame)
-        self.gridLayout.addLayout(self.verticalLayout_5, 0, 0, 1, 6)
+        sizePolicy.setHeightForWidth(self.sysBox.sizePolicy().hasHeightForWidth())
+        self.sysBox.setSizePolicy(sizePolicy)
+        self.sysBox.setMinimumSize(QtCore.QSize(240, 60))
+        self.sysBox.setMaximumSize(QtCore.QSize(240, 16777215))
+        self.sysBox.setObjectName("sysBox")
+        self.formLayoutWidget = QtGui.QWidget(self.sysBox)
+        self.formLayoutWidget.setGeometry(QtCore.QRect(10, 20, 211, 31))
+        self.formLayoutWidget.setObjectName("formLayoutWidget")
+        self.formLayout = QtGui.QFormLayout(self.formLayoutWidget)
+        self.formLayout.setSizeConstraint(QtGui.QLayout.SetFixedSize)
+        self.formLayout.setVerticalSpacing(20)
+        self.formLayout.setObjectName("formLayout")
+        self.sampleRateEdit = QtGui.QLineEdit(self.formLayoutWidget)
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.sampleRateEdit.sizePolicy().hasHeightForWidth())
+        self.sampleRateEdit.setSizePolicy(sizePolicy)
+        self.sampleRateEdit.setMinimumSize(QtCore.QSize(60, 26))
+        self.sampleRateEdit.setMaximumSize(QtCore.QSize(80, 26))
+        self.sampleRateEdit.setObjectName("sampleRateEdit")
+        self.formLayout.setWidget(0, QtGui.QFormLayout.FieldRole, self.sampleRateEdit)
+        self.sampleRateLabel = QtGui.QLabel(self.formLayoutWidget)
+        sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.sampleRateLabel.sizePolicy().hasHeightForWidth())
+        self.sampleRateLabel.setSizePolicy(sizePolicy)
+        self.sampleRateLabel.setMinimumSize(QtCore.QSize(0, 20))
+        self.sampleRateLabel.setMaximumSize(QtCore.QSize(16777215, 20))
+        self.sampleRateLabel.setObjectName("sampleRateLabel")
+        self.formLayout.setWidget(0, QtGui.QFormLayout.LabelRole, self.sampleRateLabel)
+        self.verticalLayout_2.addWidget(self.sysBox)
+        spacerItem2 = QtGui.QSpacerItem(20, 60, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Fixed)
+        self.verticalLayout_2.addItem(spacerItem2)
+        self.gridLayout.addLayout(self.verticalLayout_2, 2, 0, 1, 1)
         self.rxBox = QtGui.QGroupBox(self.centralwidget)
         sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed, QtGui.QSizePolicy.Fixed)
         sizePolicy.setHorizontalStretch(0)
@@ -187,34 +187,34 @@ class Ui_DigitalWindow(object):
         self.rxBox.setMaximumSize(QtCore.QSize(180, 16777215))
         self.rxBox.setObjectName("rxBox")
         self.formLayoutWidget_3 = QtGui.QWidget(self.rxBox)
-        self.formLayoutWidget_3.setGeometry(QtCore.QRect(10, 10, 161, 101))
+        self.formLayoutWidget_3.setGeometry(QtCore.QRect(10, 10, 164, 101))
         self.formLayoutWidget_3.setObjectName("formLayoutWidget_3")
         self.formLayout_3 = QtGui.QFormLayout(self.formLayoutWidget_3)
         self.formLayout_3.setSizeConstraint(QtGui.QLayout.SetFixedSize)
         self.formLayout_3.setObjectName("formLayout_3")
-        self.alphaTimeLabel = QtGui.QLabel(self.formLayoutWidget_3)
-        self.alphaTimeLabel.setObjectName("alphaTimeLabel")
-        self.formLayout_3.setWidget(0, QtGui.QFormLayout.LabelRole, self.alphaTimeLabel)
-        self.alphaPhaseLabel = QtGui.QLabel(self.formLayoutWidget_3)
-        self.alphaPhaseLabel.setObjectName("alphaPhaseLabel")
-        self.formLayout_3.setWidget(2, QtGui.QFormLayout.LabelRole, self.alphaPhaseLabel)
-        self.alphaTimeEdit = QtGui.QLineEdit(self.formLayoutWidget_3)
-        self.alphaTimeEdit.setMinimumSize(QtCore.QSize(60, 0))
-        self.alphaTimeEdit.setMaximumSize(QtCore.QSize(80, 16777215))
-        self.alphaTimeEdit.setObjectName("alphaTimeEdit")
-        self.formLayout_3.setWidget(0, QtGui.QFormLayout.FieldRole, self.alphaTimeEdit)
-        self.alphaPhaseEdit = QtGui.QLineEdit(self.formLayoutWidget_3)
-        self.alphaPhaseEdit.setMinimumSize(QtCore.QSize(60, 0))
-        self.alphaPhaseEdit.setMaximumSize(QtCore.QSize(80, 16777215))
-        self.alphaPhaseEdit.setObjectName("alphaPhaseEdit")
-        self.formLayout_3.setWidget(2, QtGui.QFormLayout.FieldRole, self.alphaPhaseEdit)
-        self.betaTimeEdit = QtGui.QLineEdit(self.formLayoutWidget_3)
-        self.betaTimeEdit.setMaximumSize(QtCore.QSize(80, 16777215))
-        self.betaTimeEdit.setObjectName("betaTimeEdit")
-        self.formLayout_3.setWidget(1, QtGui.QFormLayout.FieldRole, self.betaTimeEdit)
-        self.betaTimeLabel = QtGui.QLabel(self.formLayoutWidget_3)
-        self.betaTimeLabel.setObjectName("betaTimeLabel")
-        self.formLayout_3.setWidget(1, QtGui.QFormLayout.LabelRole, self.betaTimeLabel)
+        self.gainClockLabel = QtGui.QLabel(self.formLayoutWidget_3)
+        self.gainClockLabel.setObjectName("gainClockLabel")
+        self.formLayout_3.setWidget(0, QtGui.QFormLayout.LabelRole, self.gainClockLabel)
+        self.gainPhaseLabel = QtGui.QLabel(self.formLayoutWidget_3)
+        self.gainPhaseLabel.setObjectName("gainPhaseLabel")
+        self.formLayout_3.setWidget(2, QtGui.QFormLayout.LabelRole, self.gainPhaseLabel)
+        self.gainClockEdit = QtGui.QLineEdit(self.formLayoutWidget_3)
+        self.gainClockEdit.setMinimumSize(QtCore.QSize(60, 0))
+        self.gainClockEdit.setMaximumSize(QtCore.QSize(80, 16777215))
+        self.gainClockEdit.setObjectName("gainClockEdit")
+        self.formLayout_3.setWidget(0, QtGui.QFormLayout.FieldRole, self.gainClockEdit)
+        self.gainFreqEdit = QtGui.QLineEdit(self.formLayoutWidget_3)
+        self.gainFreqEdit.setMinimumSize(QtCore.QSize(60, 0))
+        self.gainFreqEdit.setMaximumSize(QtCore.QSize(80, 16777215))
+        self.gainFreqEdit.setObjectName("gainFreqEdit")
+        self.formLayout_3.setWidget(2, QtGui.QFormLayout.FieldRole, self.gainFreqEdit)
+        self.gainPhaseEdit = QtGui.QLineEdit(self.formLayoutWidget_3)
+        self.gainPhaseEdit.setMaximumSize(QtCore.QSize(80, 16777215))
+        self.gainPhaseEdit.setObjectName("gainPhaseEdit")
+        self.formLayout_3.setWidget(1, QtGui.QFormLayout.FieldRole, self.gainPhaseEdit)
+        self.gainPhaseLabel_2 = QtGui.QLabel(self.formLayoutWidget_3)
+        self.gainPhaseLabel_2.setObjectName("gainPhaseLabel_2")
+        self.formLayout_3.setWidget(1, QtGui.QFormLayout.LabelRole, self.gainPhaseLabel_2)
         self.gridLayout.addWidget(self.rxBox, 2, 2, 1, 1)
         DigitalWindow.setCentralWidget(self.centralwidget)
         self.menubar = QtGui.QMenuBar(DigitalWindow)
@@ -240,22 +240,22 @@ class Ui_DigitalWindow(object):
 
     def retranslateUi(self, DigitalWindow):
         DigitalWindow.setWindowTitle(QtGui.QApplication.translate("DigitalWindow", "MainWindow", None, QtGui.QApplication.UnicodeUTF8))
-        self.pauseButton.setText(QtGui.QApplication.translate("DigitalWindow", "Pause", None, QtGui.QApplication.UnicodeUTF8))
-        self.closeButton.setText(QtGui.QApplication.translate("DigitalWindow", "Close", None, QtGui.QApplication.UnicodeUTF8))
         self.channelModeBox.setTitle(QtGui.QApplication.translate("DigitalWindow", "Channel Model Parameters", None, QtGui.QApplication.UnicodeUTF8))
         self.snrLabel.setText(QtGui.QApplication.translate("DigitalWindow", "SNR (dB)", None, QtGui.QApplication.UnicodeUTF8))
         self.freqLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Frequency Offset (Hz)", None, QtGui.QApplication.UnicodeUTF8))
         self.timeLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Timing Offset", None, QtGui.QApplication.UnicodeUTF8))
-        self.sysBox.setTitle(QtGui.QApplication.translate("DigitalWindow", "System Parameters", None, QtGui.QApplication.UnicodeUTF8))
-        self.sampleRateLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Sample Rate (sps)", None, QtGui.QApplication.UnicodeUTF8))
+        self.pauseButton.setText(QtGui.QApplication.translate("DigitalWindow", "Pause", None, QtGui.QApplication.UnicodeUTF8))
+        self.closeButton.setText(QtGui.QApplication.translate("DigitalWindow", "Close", None, QtGui.QApplication.UnicodeUTF8))
         self.rxBox_2.setTitle(QtGui.QApplication.translate("DigitalWindow", "Received Packet Info", None, QtGui.QApplication.UnicodeUTF8))
         self.pktsRcvdLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Packets Rcvd.", None, QtGui.QApplication.UnicodeUTF8))
         self.pktsCorrectLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Packets Correct", None, QtGui.QApplication.UnicodeUTF8))
         self.perLabel.setText(QtGui.QApplication.translate("DigitalWindow", "PER", None, QtGui.QApplication.UnicodeUTF8))
+        self.sysBox.setTitle(QtGui.QApplication.translate("DigitalWindow", "System Parameters", None, QtGui.QApplication.UnicodeUTF8))
+        self.sampleRateLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Sample Rate (sps)", None, QtGui.QApplication.UnicodeUTF8))
         self.rxBox.setTitle(QtGui.QApplication.translate("DigitalWindow", "Receiver Parameters", None, QtGui.QApplication.UnicodeUTF8))
-        self.alphaTimeLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Alpha: time", None, QtGui.QApplication.UnicodeUTF8))
-        self.alphaPhaseLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Alpha: phase", None, QtGui.QApplication.UnicodeUTF8))
-        self.betaTimeLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Beta: time", None, QtGui.QApplication.UnicodeUTF8))
+        self.gainClockLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Clock Loop Gain", None, QtGui.QApplication.UnicodeUTF8))
+        self.gainPhaseLabel.setText(QtGui.QApplication.translate("DigitalWindow", "Freq. Loop Gain", None, QtGui.QApplication.UnicodeUTF8))
+        self.gainPhaseLabel_2.setText(QtGui.QApplication.translate("DigitalWindow", "Phase Loop Gain", None, QtGui.QApplication.UnicodeUTF8))
         self.menuFile.setTitle(QtGui.QApplication.translate("DigitalWindow", "&File", None, QtGui.QApplication.UnicodeUTF8))
         self.actionExit.setText(QtGui.QApplication.translate("DigitalWindow", "E&xit", None, QtGui.QApplication.UnicodeUTF8))
 
diff --git a/gnuradio-examples/python/digital/qt_digital_window2.ui b/gnuradio-examples/python/digital/qt_digital_window2.ui
index d261cbae1..4e87ff058 100644
--- a/gnuradio-examples/python/digital/qt_digital_window2.ui
+++ b/gnuradio-examples/python/digital/qt_digital_window2.ui
@@ -14,60 +14,33 @@
   </property>
   <widget class="QWidget" name="centralwidget" >
    <layout class="QGridLayout" name="gridLayout" >
-    <item row="2" column="5" >
-     <layout class="QVBoxLayout" name="verticalLayout" >
-      <item>
-       <widget class="QPushButton" name="pauseButton" >
-        <property name="minimumSize" >
-         <size>
-          <width>80</width>
-          <height>0</height>
-         </size>
-        </property>
-        <property name="maximumSize" >
-         <size>
-          <width>80</width>
-          <height>16777215</height>
-         </size>
-        </property>
-        <property name="text" >
-         <string>Pause</string>
-        </property>
-       </widget>
-      </item>
+    <item row="0" column="0" colspan="6" >
+     <layout class="QVBoxLayout" name="verticalLayout_5" >
       <item>
-       <spacer name="verticalSpacer" >
-        <property name="orientation" >
-         <enum>Qt::Vertical</enum>
-        </property>
-        <property name="sizeType" >
-         <enum>QSizePolicy::Fixed</enum>
-        </property>
-        <property name="sizeHint" stdset="0" >
-         <size>
-          <width>20</width>
-          <height>60</height>
-         </size>
+       <widget class="QFrame" name="sinkFrame" >
+        <property name="sizePolicy" >
+         <sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
         </property>
-       </spacer>
-      </item>
-      <item>
-       <widget class="QPushButton" name="closeButton" >
         <property name="minimumSize" >
          <size>
-          <width>80</width>
-          <height>0</height>
+          <width>500</width>
+          <height>550</height>
          </size>
         </property>
-        <property name="maximumSize" >
-         <size>
-          <width>80</width>
-          <height>16777215</height>
-         </size>
+        <property name="frameShape" >
+         <enum>QFrame::StyledPanel</enum>
         </property>
-        <property name="text" >
-         <string>Close</string>
+        <property name="frameShadow" >
+         <enum>QFrame::Raised</enum>
         </property>
+        <layout class="QGridLayout" name="gridLayout_2" >
+         <item row="1" column="0" >
+          <layout class="QHBoxLayout" name="sinkLayout" />
+         </item>
+        </layout>
        </widget>
       </item>
      </layout>
@@ -184,100 +157,29 @@
       </widget>
      </widget>
     </item>
-    <item row="2" column="0" >
-     <layout class="QVBoxLayout" name="verticalLayout_2" >
+    <item row="2" column="5" >
+     <layout class="QVBoxLayout" name="verticalLayout" >
       <item>
-       <widget class="QGroupBox" name="sysBox" >
-        <property name="sizePolicy" >
-         <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
-          <horstretch>0</horstretch>
-          <verstretch>0</verstretch>
-         </sizepolicy>
-        </property>
+       <widget class="QPushButton" name="pauseButton" >
         <property name="minimumSize" >
          <size>
-          <width>240</width>
-          <height>60</height>
+          <width>80</width>
+          <height>0</height>
          </size>
         </property>
         <property name="maximumSize" >
          <size>
-          <width>240</width>
+          <width>80</width>
           <height>16777215</height>
          </size>
         </property>
-        <property name="title" >
-         <string>System Parameters</string>
+        <property name="text" >
+         <string>Pause</string>
         </property>
-        <widget class="QWidget" name="formLayoutWidget" >
-         <property name="geometry" >
-          <rect>
-           <x>10</x>
-           <y>20</y>
-           <width>211</width>
-           <height>31</height>
-          </rect>
-         </property>
-         <layout class="QFormLayout" name="formLayout" >
-          <property name="sizeConstraint" >
-           <enum>QLayout::SetFixedSize</enum>
-          </property>
-          <property name="verticalSpacing" >
-           <number>20</number>
-          </property>
-          <item row="0" column="1" >
-           <widget class="QLineEdit" name="sampleRateEdit" >
-            <property name="sizePolicy" >
-             <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="minimumSize" >
-             <size>
-              <width>60</width>
-              <height>26</height>
-             </size>
-            </property>
-            <property name="maximumSize" >
-             <size>
-              <width>80</width>
-              <height>26</height>
-             </size>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="0" >
-           <widget class="QLabel" name="sampleRateLabel" >
-            <property name="sizePolicy" >
-             <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="minimumSize" >
-             <size>
-              <width>0</width>
-              <height>20</height>
-             </size>
-            </property>
-            <property name="maximumSize" >
-             <size>
-              <width>16777215</width>
-              <height>20</height>
-             </size>
-            </property>
-            <property name="text" >
-             <string>Sample Rate (sps)</string>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </widget>
        </widget>
       </item>
       <item>
-       <spacer name="verticalSpacer_2" >
+       <spacer name="verticalSpacer" >
         <property name="orientation" >
          <enum>Qt::Vertical</enum>
         </property>
@@ -292,6 +194,25 @@
         </property>
        </spacer>
       </item>
+      <item>
+       <widget class="QPushButton" name="closeButton" >
+        <property name="minimumSize" >
+         <size>
+          <width>80</width>
+          <height>0</height>
+         </size>
+        </property>
+        <property name="maximumSize" >
+         <size>
+          <width>80</width>
+          <height>16777215</height>
+         </size>
+        </property>
+        <property name="text" >
+         <string>Close</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </item>
     <item row="2" column="3" >
@@ -425,35 +346,114 @@
       </property>
      </spacer>
     </item>
-    <item row="0" column="0" colspan="6" >
-     <layout class="QVBoxLayout" name="verticalLayout_5" >
+    <item row="2" column="0" >
+     <layout class="QVBoxLayout" name="verticalLayout_2" >
       <item>
-       <widget class="QFrame" name="sinkFrame" >
+       <widget class="QGroupBox" name="sysBox" >
         <property name="sizePolicy" >
-         <sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
+         <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="minimumSize" >
          <size>
-          <width>500</width>
-          <height>550</height>
+          <width>240</width>
+          <height>60</height>
          </size>
         </property>
-        <property name="frameShape" >
-         <enum>QFrame::StyledPanel</enum>
+        <property name="maximumSize" >
+         <size>
+          <width>240</width>
+          <height>16777215</height>
+         </size>
         </property>
-        <property name="frameShadow" >
-         <enum>QFrame::Raised</enum>
+        <property name="title" >
+         <string>System Parameters</string>
         </property>
-        <layout class="QGridLayout" name="gridLayout_2" >
-         <item row="1" column="0" >
-          <layout class="QHBoxLayout" name="sinkLayout" />
-         </item>
-        </layout>
+        <widget class="QWidget" name="formLayoutWidget" >
+         <property name="geometry" >
+          <rect>
+           <x>10</x>
+           <y>20</y>
+           <width>211</width>
+           <height>31</height>
+          </rect>
+         </property>
+         <layout class="QFormLayout" name="formLayout" >
+          <property name="sizeConstraint" >
+           <enum>QLayout::SetFixedSize</enum>
+          </property>
+          <property name="verticalSpacing" >
+           <number>20</number>
+          </property>
+          <item row="0" column="1" >
+           <widget class="QLineEdit" name="sampleRateEdit" >
+            <property name="sizePolicy" >
+             <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="minimumSize" >
+             <size>
+              <width>60</width>
+              <height>26</height>
+             </size>
+            </property>
+            <property name="maximumSize" >
+             <size>
+              <width>80</width>
+              <height>26</height>
+             </size>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="0" >
+           <widget class="QLabel" name="sampleRateLabel" >
+            <property name="sizePolicy" >
+             <sizepolicy vsizetype="Fixed" hsizetype="Fixed" >
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="minimumSize" >
+             <size>
+              <width>0</width>
+              <height>20</height>
+             </size>
+            </property>
+            <property name="maximumSize" >
+             <size>
+              <width>16777215</width>
+              <height>20</height>
+             </size>
+            </property>
+            <property name="text" >
+             <string>Sample Rate (sps)</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
        </widget>
       </item>
+      <item>
+       <spacer name="verticalSpacer_2" >
+        <property name="orientation" >
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeType" >
+         <enum>QSizePolicy::Fixed</enum>
+        </property>
+        <property name="sizeHint" stdset="0" >
+         <size>
+          <width>20</width>
+          <height>60</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
      </layout>
     </item>
     <item row="2" column="2" >
@@ -484,7 +484,7 @@
         <rect>
          <x>10</x>
          <y>10</y>
-         <width>161</width>
+         <width>164</width>
          <height>101</height>
         </rect>
        </property>
@@ -493,21 +493,21 @@
          <enum>QLayout::SetFixedSize</enum>
         </property>
         <item row="0" column="0" >
-         <widget class="QLabel" name="alphaTimeLabel" >
+         <widget class="QLabel" name="gainClockLabel" >
           <property name="text" >
-           <string>Alpha: time</string>
+           <string>Clock Loop Gain</string>
           </property>
          </widget>
         </item>
         <item row="2" column="0" >
-         <widget class="QLabel" name="alphaPhaseLabel" >
+         <widget class="QLabel" name="gainPhaseLabel" >
           <property name="text" >
-           <string>Alpha: phase</string>
+           <string>Freq. Loop Gain</string>
           </property>
          </widget>
         </item>
         <item row="0" column="1" >
-         <widget class="QLineEdit" name="alphaTimeEdit" >
+         <widget class="QLineEdit" name="gainClockEdit" >
           <property name="minimumSize" >
            <size>
             <width>60</width>
@@ -523,7 +523,7 @@
          </widget>
         </item>
         <item row="2" column="1" >
-         <widget class="QLineEdit" name="alphaPhaseEdit" >
+         <widget class="QLineEdit" name="gainFreqEdit" >
           <property name="minimumSize" >
            <size>
             <width>60</width>
@@ -539,7 +539,7 @@
          </widget>
         </item>
         <item row="1" column="1" >
-         <widget class="QLineEdit" name="betaTimeEdit" >
+         <widget class="QLineEdit" name="gainPhaseEdit" >
           <property name="maximumSize" >
            <size>
             <width>80</width>
@@ -549,9 +549,9 @@
          </widget>
         </item>
         <item row="1" column="0" >
-         <widget class="QLabel" name="betaTimeLabel" >
+         <widget class="QLabel" name="gainPhaseLabel_2" >
           <property name="text" >
-           <string>Beta: time</string>
+           <string>Phase Loop Gain</string>
           </property>
          </widget>
         </item>