diff --git a/plugins/channelrx/chanalyzerng/chanalyzernggui.cpp b/plugins/channelrx/chanalyzerng/chanalyzernggui.cpp
index 5b479708e..b5d135fa4 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzernggui.cpp
+++ b/plugins/channelrx/chanalyzerng/chanalyzernggui.cpp
@@ -182,17 +182,6 @@ void ChannelAnalyzerNGGUI::channelizerInputSampleRateChanged()
 	applySettings();
 }
 
-void ChannelAnalyzerNGGUI::on_deltaMinus_toggled(bool minus)
-{
-	int deltaFrequency = m_channelMarker.getCenterFrequency();
-	bool minusDelta = (deltaFrequency < 0);
-
-	if (minus ^ minusDelta) // sign change
-	{
-		m_channelMarker.setCenterFrequency(-deltaFrequency);
-	}
-}
-
 void ChannelAnalyzerNGGUI::on_channelSampleRate_changed(quint64 value)
 {
     ui->channelSampleRate->setValueRange(7, 2000U, m_channelAnalyzer->getInputSampleRate());
@@ -220,13 +209,9 @@ int ChannelAnalyzerNGGUI::getRequestedChannelSampleRate()
     }
 }
 
-void ChannelAnalyzerNGGUI::on_deltaFrequency_changed(quint64 value)
+void ChannelAnalyzerNGGUI::on_deltaFrequency_changed(qint64 value)
 {
-	if (ui->deltaMinus->isChecked()) {
-		m_channelMarker.setCenterFrequency(-value);
-	} else {
-		m_channelMarker.setCenterFrequency(value);
-	}
+    m_channelMarker.setCenterFrequency(value);
 }
 
 void ChannelAnalyzerNGGUI::on_BW_valueChanged(int value)
@@ -371,8 +356,9 @@ ChannelAnalyzerNGGUI::ChannelAnalyzerNGGUI(PluginAPI* pluginAPI, DeviceSourceAPI
 	connect(m_channelizer, SIGNAL(inputSampleRateChanged()), this, SLOT(channelizerInputSampleRateChanged()));
 	m_deviceAPI->addThreadedSink(m_threadedChannelizer);
 
-	ui->deltaFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
-	ui->deltaFrequency->setValueRange(7, 0U, 9999999U);
+    ui->deltaFrequencyLabel->setText(QString("%1f").arg(QChar(0x94, 0x03)));
+    ui->deltaFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
+    ui->deltaFrequency->setValueRange(false, 7, -9999999, 9999999);
 
 	ui->channelSampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
 	ui->channelSampleRate->setValueRange(7, 2000U, 9999999U);
@@ -513,8 +499,7 @@ void ChannelAnalyzerNGGUI::applySettings()
 	if (m_doApplySettings)
 	{
 		setTitleColor(m_channelMarker.getColor());
-		ui->deltaFrequency->setValue(abs(m_channelMarker.getCenterFrequency()));
-		ui->deltaMinus->setChecked(m_channelMarker.getCenterFrequency() < 0);
+		ui->deltaFrequency->setValue(m_channelMarker.getCenterFrequency());
 
 		m_channelizer->configure(m_channelizer->getInputMessageQueue(),
 			//m_channelizer->getInputSampleRate(),
diff --git a/plugins/channelrx/chanalyzerng/chanalyzernggui.h b/plugins/channelrx/chanalyzerng/chanalyzernggui.h
index d356b0250..2e124bd6f 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzernggui.h
+++ b/plugins/channelrx/chanalyzerng/chanalyzernggui.h
@@ -59,8 +59,7 @@ public:
 private slots:
 	void viewChanged();
 	void channelizerInputSampleRateChanged();
-	void on_deltaFrequency_changed(quint64 value);
-	void on_deltaMinus_toggled(bool minus);
+	void on_deltaFrequency_changed(qint64 value);
     void on_channelSampleRate_changed(quint64 value);
     void on_useRationalDownsampler_toggled(bool checked);
 	void on_BW_valueChanged(int value);
diff --git a/plugins/channelrx/chanalyzerng/chanalyzernggui.ui b/plugins/channelrx/chanalyzerng/chanalyzernggui.ui
index 551e596a0..f5cb92639 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzernggui.ui
+++ b/plugins/channelrx/chanalyzerng/chanalyzernggui.ui
@@ -61,29 +61,20 @@
       <item>
        <layout class="QHBoxLayout" name="DeltaFrequencyLayout">
         <item>
-         <widget class="QToolButton" name="deltaMinus">
-          <property name="toolTip">
-           <string>Frequency shift direction</string>
+         <widget class="QLabel" name="deltaFrequencyLabel">
+          <property name="minimumSize">
+           <size>
+            <width>16</width>
+            <height>0</height>
+           </size>
           </property>
           <property name="text">
-           <string>...</string>
-          </property>
-          <property name="icon">
-           <iconset>
-            <selectedoff>:/plus.png</selectedoff>
-            <selectedon>:/minus.png</selectedon>
-           </iconset>
-          </property>
-          <property name="checkable">
-           <bool>true</bool>
-          </property>
-          <property name="checked">
-           <bool>false</bool>
+           <string>Df</string>
           </property>
          </widget>
         </item>
         <item>
-         <widget class="ValueDial" name="deltaFrequency" native="true">
+         <widget class="ValueDialZ" name="deltaFrequency" native="true">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
             <horstretch>0</horstretch>
@@ -605,6 +596,12 @@
    <header>gui/glscopenggui.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>ValueDialZ</class>
+   <extends>QWidget</extends>
+   <header>gui/valuedialz.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="../../../sdrbase/resources/res.qrc"/>