diff --git a/plugins/channel/demoddsd/dsddemod.cpp b/plugins/channel/demoddsd/dsddemod.cpp
index 2722e390a..fcabc95df 100644
--- a/plugins/channel/demoddsd/dsddemod.cpp
+++ b/plugins/channel/demoddsd/dsddemod.cpp
@@ -85,7 +85,9 @@ void DSDDemod::configure(MessageQueue* messageQueue,
 		Real squelch,
 		bool audioMute,
 		bool enableCosineFiltering,
-		bool syncOrConstellation)
+		bool syncOrConstellation,
+		bool slot1On,
+		bool slot2On)
 {
 	Message* cmd = MsgConfigureDSDDemod::create(rfBandwidth,
 			demodGain,
@@ -96,7 +98,9 @@ void DSDDemod::configure(MessageQueue* messageQueue,
 			squelch,
 			audioMute,
 			enableCosineFiltering,
-			syncOrConstellation);
+			syncOrConstellation,
+			slot1On,
+			slot2On);
 	messageQueue->push(cmd);
 }
 
@@ -266,6 +270,8 @@ bool DSDDemod::handleMessage(const Message& cmd)
 		m_config.m_audioMute = cfg.getAudioMute();
 		m_config.m_enableCosineFiltering = cfg.getEnableCosineFiltering();
 		m_config.m_syncOrConstellation = cfg.getSyncOrConstellation();
+		m_config.m_slot1On = cfg.getSlot1On();
+		m_config.m_slot2On = cfg.getSlot2On();
 
 		apply();
 
@@ -278,7 +284,9 @@ bool DSDDemod::handleMessage(const Message& cmd)
 				<< " m_squelch: " << m_config.m_squelch
 				<< " m_audioMute: " << m_config.m_audioMute
 				<< " m_enableCosineFiltering: " << m_config.m_enableCosineFiltering
-				<< " m_syncOrConstellation: " << m_config.m_syncOrConstellation;
+				<< " m_syncOrConstellation: " << m_config.m_syncOrConstellation
+				<< " m_slot1On: " << m_config.m_slot1On
+				<< " m_slot2On: " << m_config.m_slot2On;
 
 		return true;
 	}
@@ -353,4 +361,6 @@ void DSDDemod::apply()
 	m_running.m_audioMute = m_config.m_audioMute;
 	m_running.m_enableCosineFiltering = m_config.m_enableCosineFiltering;
 	m_running.m_syncOrConstellation = m_config.m_syncOrConstellation;
+	m_running.m_slot1On = m_config.m_slot1On;
+	m_running.m_slot2On = m_config.m_slot2On;
 }
diff --git a/plugins/channel/demoddsd/dsddemod.h b/plugins/channel/demoddsd/dsddemod.h
index 21989698d..38b3e576b 100644
--- a/plugins/channel/demoddsd/dsddemod.h
+++ b/plugins/channel/demoddsd/dsddemod.h
@@ -50,7 +50,9 @@ public:
 			Real squelch,
 			bool audioMute,
 			bool enableCosineFiltering,
-			bool syncOrConstellation);
+			bool syncOrConstellation,
+			bool slot1On,
+			bool slot2On);
 
 	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
 	virtual void start();
@@ -81,6 +83,8 @@ private:
 		bool getAudioMute() const { return m_audioMute; }
 		bool getEnableCosineFiltering() const { return m_enableCosineFiltering; }
 		bool getSyncOrConstellation() const { return m_syncOrConstellation; }
+		bool getSlot1On() const { return m_slot1On; }
+		bool getSlot2On() const { return m_slot2On; }
 
 		static MsgConfigureDSDDemod* create(int rfBandwidth,
 				int  demodGain,
@@ -91,7 +95,9 @@ private:
 				Real squelch,
 				bool audioMute,
 				bool enableCosineFiltering,
-				bool syncOrConstellation)
+				bool syncOrConstellation,
+				bool slot1On,
+				bool slot2On)
 		{
 			return new MsgConfigureDSDDemod(rfBandwidth,
 			        demodGain,
@@ -102,7 +108,9 @@ private:
 			        squelch,
 			        audioMute,
 			        enableCosineFiltering,
-			        syncOrConstellation);
+			        syncOrConstellation,
+			        slot1On,
+			        slot2On);
 		}
 
 	private:
@@ -116,6 +124,8 @@ private:
 		bool m_audioMute;
 		bool m_enableCosineFiltering;
 		bool m_syncOrConstellation;
+        bool m_slot1On;
+        bool m_slot2On;
 
 		MsgConfigureDSDDemod(int rfBandwidth,
 				int  demodGain,
@@ -126,7 +136,9 @@ private:
 				Real squelch,
 				bool audioMute,
 				bool enableCosineFiltering,
-				bool syncOrConstellation) :
+				bool syncOrConstellation,
+				bool slot1On,
+				bool slot2On) :
 			Message(),
 			m_rfBandwidth(rfBandwidth),
 			m_demodGain(demodGain),
@@ -137,7 +149,9 @@ private:
 			m_squelch(squelch),
 			m_audioMute(audioMute),
 			m_enableCosineFiltering(enableCosineFiltering),
-			m_syncOrConstellation(syncOrConstellation)
+			m_syncOrConstellation(syncOrConstellation),
+			m_slot1On(slot1On),
+			m_slot2On(slot2On)
 		{ }
 	};
 
@@ -166,6 +180,8 @@ private:
 		quint32 m_audioSampleRate;
 		bool m_enableCosineFiltering;
 		bool m_syncOrConstellation;
+		bool m_slot1On;
+		bool m_slot2On;
 
 		Config() :
 			m_inputSampleRate(-1),
@@ -180,7 +196,9 @@ private:
 			m_audioMute(false),
 			m_audioSampleRate(0),
 			m_enableCosineFiltering(false),
-			m_syncOrConstellation(false)
+			m_syncOrConstellation(false),
+			m_slot1On(false),
+			m_slot2On(false)
 		{ }
 	};
 
diff --git a/plugins/channel/demoddsd/dsddemodgui.cpp b/plugins/channel/demoddsd/dsddemodgui.cpp
index 5910f4b38..cf7290361 100644
--- a/plugins/channel/demoddsd/dsddemodgui.cpp
+++ b/plugins/channel/demoddsd/dsddemodgui.cpp
@@ -116,6 +116,8 @@ QByteArray DSDDemodGUI::serialize() const
     s.writeS32(11, ui->baudRate->currentIndex());
     s.writeBool(12, m_enableCosineFiltering);
     s.writeBool(13, m_syncOrConstellation);
+    s.writeBool(14, m_slot1On);
+    s.writeBool(15, m_slot2On);
 	return s.final();
 }
 
@@ -165,6 +167,8 @@ bool DSDDemodGUI::deserialize(const QByteArray& data)
         ui->baudRate->setCurrentIndex(tmp);
         d.readBool(12, &m_enableCosineFiltering, false);
         d.readBool(13, &m_syncOrConstellation, false);
+        d.readBool(14, &m_slot1On, false);
+        d.readBool(15, &m_slot2On, false);
 
 		blockApplySettings(false);
 		m_channelMarker.blockSignals(false);
@@ -251,6 +255,18 @@ void DSDDemodGUI::on_syncOrConstellation_toggled(bool checked)
     applySettings();
 }
 
+void DSDDemodGUI::on_slot1On_toggled(bool checked)
+{
+    m_slot1On = checked;
+    applySettings();
+}
+
+void DSDDemodGUI::on_slot2On_toggled(bool checked)
+{
+    m_slot2On = checked;
+    applySettings();
+}
+
 void DSDDemodGUI::on_squelchGate_valueChanged(int value)
 {
 	applySettings();
@@ -297,6 +313,8 @@ DSDDemodGUI::DSDDemodGUI(PluginAPI* pluginAPI, DeviceAPI *deviceAPI, QWidget* pa
 	m_signalFormat(signalFormatNone),
 	m_enableCosineFiltering(false),
 	m_syncOrConstellation(false),
+	m_slot1On(false),
+	m_slot2On(false),
 	m_squelchOpen(false),
 	m_channelPowerDbAvg(20,0),
 	m_tickCount(0)
@@ -373,6 +391,8 @@ void DSDDemodGUI::applySettings()
 	    ui->volumeText->setText(QString("%1").arg(ui->volume->value() / 10.0, 0, 'f', 1));
 	    ui->enableCosineFiltering->setChecked(m_enableCosineFiltering);
 	    ui->syncOrConstellation->setChecked(m_syncOrConstellation);
+	    ui->slot1On->setChecked(m_slot1On);
+        ui->slot2On->setChecked(m_slot2On);
 
 		m_dsdDemod->configure(m_dsdDemod->getInputMessageQueue(),
 			ui->rfBW->value(),
@@ -384,7 +404,9 @@ void DSDDemodGUI::applySettings()
 			ui->squelch->value(),
 			ui->audioMute->isChecked(),
 			m_enableCosineFiltering,
-			m_syncOrConstellation);
+			m_syncOrConstellation,
+			m_slot1On,
+			m_slot2On);
 	}
 }
 
diff --git a/plugins/channel/demoddsd/dsddemodgui.h b/plugins/channel/demoddsd/dsddemodgui.h
index 361a5e208..e9e26a6a2 100644
--- a/plugins/channel/demoddsd/dsddemodgui.h
+++ b/plugins/channel/demoddsd/dsddemodgui.h
@@ -67,6 +67,8 @@ private slots:
     void on_baudRate_currentIndexChanged(int index);
     void on_enableCosineFiltering_toggled(bool enable);
     void on_syncOrConstellation_toggled(bool checked);
+    void on_slot1On_toggled(bool checked);
+    void on_slot2On_toggled(bool checked);
 	void on_fmDeviation_valueChanged(int value);
 	void on_squelchGate_valueChanged(int value);
 	void on_squelch_valueChanged(int value);
@@ -100,6 +102,8 @@ private:
 	DSDDemod* m_dsdDemod;
 	bool m_enableCosineFiltering;
 	bool m_syncOrConstellation;
+	bool m_slot1On;
+    bool m_slot2On;
     bool m_audioMute;
 	bool m_squelchOpen;
 	MovingAverage<Real> m_channelPowerDbAvg;