diff --git a/sdrgui/device/devicesourceapi.cpp b/sdrgui/device/devicesourceapi.cpp
index 513b7d0af..444c8ef97 100644
--- a/sdrgui/device/devicesourceapi.cpp
+++ b/sdrgui/device/devicesourceapi.cpp
@@ -20,20 +20,14 @@
 #include "dsp/devicesamplesource.h"
 #include "plugin/pluginapi.h"
 #include "plugin/plugininterface.h"
-#include "gui/glspectrum.h"
-#include "gui/channelwindow.h"
 #include "settings/preset.h"
 #include "dsp/dspengine.h"
 
 // TODO: extract GUI dependencies in a separate object
 DeviceSourceAPI::DeviceSourceAPI(int deviceTabIndex,
-        DSPDeviceSourceEngine *deviceSourceEngine,
-        GLSpectrum *glSpectrum,
-        ChannelWindow *channelWindow) :
+        DSPDeviceSourceEngine *deviceSourceEngine) :
     m_deviceTabIndex(deviceTabIndex),
     m_deviceSourceEngine(deviceSourceEngine),
-    m_spectrum(glSpectrum),
-    m_channelWindow(channelWindow),
     m_sampleSourceSequence(0),
     m_pluginInterface(0),
     m_sampleSourcePluginInstanceUI(0),
@@ -128,16 +122,6 @@ void DeviceSourceAPI::configureCorrections(bool dcOffsetCorrection, bool iqImbal
     m_deviceSourceEngine->configureCorrections(dcOffsetCorrection, iqImbalanceCorrection);
 }
 
-void DeviceSourceAPI::addChannelMarker(ChannelMarker* channelMarker)
-{
-    m_spectrum->addChannelMarker(channelMarker);
-}
-
-void DeviceSourceAPI::addRollupWidget(QWidget *widget)
-{
-    m_channelWindow->addRollupWidget(widget);
-}
-
 void DeviceSourceAPI::setHardwareId(const QString& id)
 {
     m_hardwareId = id;
diff --git a/sdrgui/device/devicesourceapi.h b/sdrgui/device/devicesourceapi.h
index 0946e5d7a..a090637fa 100644
--- a/sdrgui/device/devicesourceapi.h
+++ b/sdrgui/device/devicesourceapi.h
@@ -25,14 +25,11 @@
 
 #include "util/export.h"
 
-class GLSpectrum;
-class ChannelWindow;
 class BasebandSampleSink;
 class ThreadedBasebandSampleSink;
 class DeviceSampleSource;
 class MessageQueue;
 class ChannelMarker;
-class QWidget;
 class PluginInstanceGUI;
 class PluginAPI;
 class PluginInterface;
@@ -44,9 +41,7 @@ class SDRANGEL_API DeviceSourceAPI : public QObject {
 
 public:
     DeviceSourceAPI(int deviceTabIndex,
-            DSPDeviceSourceEngine *deviceSourceEngine,
-            GLSpectrum *glSpectrum,
-            ChannelWindow *channelWindow);
+            DSPDeviceSourceEngine *deviceSourceEngine);
     ~DeviceSourceAPI();
 
     // Device engine stuff
@@ -67,10 +62,6 @@ public:
     MessageQueue *getSampleSourceGUIMessageQueue();
     void configureCorrections(bool dcOffsetCorrection, bool iqImbalanceCorrection); //!< Configure current device engine DSP corrections
 
-    // device related stuff
-    void addChannelMarker(ChannelMarker* channelMarker); //!< Add channel marker to spectrum
-    void addRollupWidget(QWidget *widget);               //!< Add rollup widget to channel window
-
     void setHardwareId(const QString& id);
     void setSampleSourceId(const QString& id);
     void resetSampleSourceId();
@@ -110,8 +101,6 @@ public:
 protected:
     int m_deviceTabIndex;
     DSPDeviceSourceEngine *m_deviceSourceEngine;
-    GLSpectrum *m_spectrum;
-    ChannelWindow *m_channelWindow;
 
     QString m_hardwareId;
     QString m_sampleSourceId;
diff --git a/sdrgui/mainwindow.cpp b/sdrgui/mainwindow.cpp
index 4512723b5..83e3ea0e9 100644
--- a/sdrgui/mainwindow.cpp
+++ b/sdrgui/mainwindow.cpp
@@ -211,7 +211,7 @@ void MainWindow::addSourceDevice()
     char tabNameCStr[16];
     sprintf(tabNameCStr, "R%d", deviceTabIndex);
 
-    DeviceSourceAPI *deviceSourceAPI = new DeviceSourceAPI(deviceTabIndex, dspDeviceSourceEngine, m_deviceUIs.back()->m_spectrum, m_deviceUIs.back()->m_channelWindow);
+    DeviceSourceAPI *deviceSourceAPI = new DeviceSourceAPI(deviceTabIndex, dspDeviceSourceEngine);
 
     m_deviceUIs.back()->m_deviceSourceAPI = deviceSourceAPI;
     m_deviceUIs.back()->m_samplingDeviceControl->setDeviceAPI(deviceSourceAPI);
@@ -1024,7 +1024,6 @@ void MainWindow::on_channel_addClicked(bool checked __attribute__((unused)))
 
         if (deviceUI->m_deviceSourceEngine) // source device => Rx channels
         {
-            qDebug("MainWindow::on_channel_addClicked: channel name: %s", qPrintable(m_pluginManager->getRxChannelInstanceName(deviceUI->m_samplingDeviceControl->getChannelSelector()->currentIndex())));
             m_pluginManager->createRxChannelInstance(deviceUI->m_samplingDeviceControl->getChannelSelector()->currentIndex(), deviceUI);
         }
         else if (deviceUI->m_deviceSinkEngine) // sink device => Tx channels
diff --git a/sdrgui/plugin/pluginmanager.cpp b/sdrgui/plugin/pluginmanager.cpp
index fa37b408a..6892e4ea1 100644
--- a/sdrgui/plugin/pluginmanager.cpp
+++ b/sdrgui/plugin/pluginmanager.cpp
@@ -618,15 +618,6 @@ void PluginManager::populateTxChannelComboBox(QComboBox *channels)
     }
 }
 
-void PluginManager::createRxChannelInstance(int channelPluginIndex, DeviceSourceAPI *deviceAPI)
-{
-    if (channelPluginIndex < m_rxChannelRegistrations.size())
-    {
-        PluginInterface *pluginInterface = m_rxChannelRegistrations[channelPluginIndex].m_plugin;
-        pluginInterface->createRxChannel(m_rxChannelRegistrations[channelPluginIndex].m_channelName, deviceAPI);
-    }
-}
-
 void PluginManager::createRxChannelInstance(int channelPluginIndex, DeviceUISet *deviceUISet)
 {
     if (channelPluginIndex < m_rxChannelRegistrations.size())
@@ -636,18 +627,6 @@ void PluginManager::createRxChannelInstance(int channelPluginIndex, DeviceUISet
     }
 }
 
-QString PluginManager::getRxChannelInstanceName(int channelPluginIndex)
-{
-    if (channelPluginIndex < m_rxChannelRegistrations.size())
-    {
-        return m_rxChannelRegistrations[channelPluginIndex].m_channelName;
-    }
-    else
-    {
-        return "";
-    }
-}
-
 void PluginManager::createTxChannelInstance(int channelPluginIndex, DeviceSinkAPI *deviceAPI)
 {
     if (channelPluginIndex < m_txChannelRegistrations.size())
diff --git a/sdrgui/plugin/pluginmanager.h b/sdrgui/plugin/pluginmanager.h
index 13425a676..eef75d9f0 100644
--- a/sdrgui/plugin/pluginmanager.h
+++ b/sdrgui/plugin/pluginmanager.h
@@ -71,9 +71,7 @@ public:
 	PluginInterface* getPluginInterfaceAt(int index);
 
 	void populateRxChannelComboBox(QComboBox *channels);
-	void createRxChannelInstance(int channelPluginIndex, DeviceSourceAPI *deviceAPI);
     void createRxChannelInstance(int channelPluginIndex, DeviceUISet *deviceUISet);
-    QString getRxChannelInstanceName(int channelPluginIndex);
 
 	void populateTxChannelComboBox(QComboBox *channels);
 	void createTxChannelInstance(int channelPluginIndex, DeviceSinkAPI *deviceAPI);