diff --git a/plugins/samplesink/sdrdaemonsink/sdrdaemonsinkgui.ui b/plugins/samplesink/sdrdaemonsink/sdrdaemonsinkgui.ui
index 6f8e1e5e7..5a83c0d17 100644
--- a/plugins/samplesink/sdrdaemonsink/sdrdaemonsinkgui.ui
+++ b/plugins/samplesink/sdrdaemonsink/sdrdaemonsinkgui.ui
@@ -280,7 +280,7 @@
      <item>
       <widget class="QLabel" name="txDelayLabel">
        <property name="text">
-        <string>Dt</string>
+        <string>UDly</string>
        </property>
       </widget>
      </item>
diff --git a/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.cpp b/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.cpp
index 779b753da..7d53461eb 100644
--- a/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.cpp
+++ b/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.cpp
@@ -86,10 +86,13 @@ SDRdaemonFECGui::SDRdaemonFECGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
 	ui->setupUi(this);
 
 	ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
-	ui->centerFrequency->setValueRange(7, 0, pow(10,7));
+	ui->centerFrequency->setValueRange(7, 0, 9999999U);
+
+    ui->freq->setColorMapper(ColorMapper(ColorMapper::GrayGold));
+    ui->freq->setValueRange(7, 0, 9999999U);
 
     ui->sampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
-    ui->sampleRate->setValueRange(7, 32000U, 9000000U);
+    ui->sampleRate->setValueRange(7, 32000U, 9999999U);
 
 	connect(&m_statusTimer, SIGNAL(timeout()), this, SLOT(updateStatus()));
 	m_statusTimer.start(500);
@@ -311,7 +314,7 @@ void SDRdaemonFECGui::displaySettings()
     ui->centerFrequency->setValue(m_settings.m_centerFrequency / 1000);
     ui->deviceRateText->setText(tr("%1k").arg(m_sampleRate / 1000.0));
 
-    ui->freq->setText(QString::number(m_settings.m_centerFrequency / 1000));
+    ui->freq->setValue(m_settings.m_centerFrequency / 1000);
     ui->decim->setCurrentIndex(m_settings.m_log2Decim);
     ui->fcPos->setCurrentIndex(m_settings.m_fcPos);
     ui->sampleRate->setValue(m_settings.m_sampleRate);
@@ -546,16 +549,10 @@ void SDRdaemonFECGui::on_iqImbalance_toggled(bool checked)
 	}
 }
 
-void SDRdaemonFECGui::on_freq_returnPressed()
+void SDRdaemonFECGui::on_freq_changed(quint64 value)
 {
-    bool ok;
-    uint64_t freq = ui->freq->text().toInt(&ok);
-
-    if (ok)
-    {
-        m_settings.m_centerFrequency = freq * 1000;
-        sendControl();
-    }
+    m_settings.m_centerFrequency = value * 1000;
+    sendControl();
 }
 
 void SDRdaemonFECGui::on_sampleRate_changed(quint64 value)
diff --git a/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.h b/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.h
index 8634fa682..3f000586b 100644
--- a/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.h
+++ b/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.h
@@ -130,7 +130,7 @@ private slots:
 	void on_dataPort_returnPressed();
 	void on_controlPort_returnPressed();
 	void on_sendButton_clicked(bool checked);
-	void on_freq_returnPressed();
+	void on_freq_changed(quint64 value);
 	void on_sampleRate_changed(quint64 value);
 	void on_specificParms_returnPressed();
 	void on_decim_currentIndexChanged(int index);
diff --git a/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.ui b/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.ui
index f1fbb241c..ec978e129 100644
--- a/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.ui
+++ b/plugins/samplesource/sdrdaemonfec/sdrdaemonfecgui.ui
@@ -737,27 +737,31 @@
       </widget>
      </item>
      <item>
-      <widget class="QLineEdit" name="freq">
+      <widget class="ValueDial" name="freq" native="true">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
        <property name="minimumSize">
         <size>
-         <width>0</width>
-         <height>0</height>
+         <width>32</width>
+         <height>16</height>
         </size>
        </property>
-       <property name="maximumSize">
-        <size>
-         <width>100</width>
-         <height>16777215</height>
-        </size>
+       <property name="font">
+        <font>
+         <family>DejaVu Sans Mono</family>
+         <pointsize>12</pointsize>
+         <italic>false</italic>
+        </font>
+       </property>
+       <property name="cursor">
+        <cursorShape>PointingHandCursor</cursorShape>
        </property>
        <property name="toolTip">
-        <string>Set center frequency (kHz)</string>
-       </property>
-       <property name="text">
-        <string>00000000</string>
-       </property>
-       <property name="alignment">
-        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        <string>Desired device center frequency</string>
        </property>
       </widget>
      </item>
@@ -791,7 +795,7 @@
      <item>
       <widget class="QLabel" name="txDelayLabel">
        <property name="text">
-        <string>Dt</string>
+        <string>UDly</string>
        </property>
       </widget>
      </item>
@@ -886,6 +890,19 @@
        </property>
       </widget>
      </item>
+     <item>
+      <spacer name="horizontalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
      <item>
       <widget class="QLabel" name="decimLabel">
        <property name="text">
@@ -988,19 +1005,6 @@
        </item>
       </widget>
      </item>
-     <item>
-      <spacer name="horizontalSpacer_3">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>40</width>
-         <height>20</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
     </layout>
    </item>
    <item>