diff --git a/plugins/channeltx/udpsink/udpsink.cpp b/plugins/channeltx/udpsink/udpsink.cpp
index c0c7c9c15..f35adccde 100644
--- a/plugins/channeltx/udpsink/udpsink.cpp
+++ b/plugins/channeltx/udpsink/udpsink.cpp
@@ -16,8 +16,11 @@
 
 #include <QDebug>
 
+#include "device/devicesinkapi.h"
 #include "dsp/upchannelizer.h"
+#include "dsp/threadedbasebandsamplesource.h"
 #include "util/db.h"
+
 #include "udpsinkmsg.h"
 #include "udpsink.h"
 
@@ -51,6 +54,11 @@ UDPSink::UDPSink(DeviceSinkAPI *deviceAPI, BasebandSampleSink* spectrum) :
     m_settingsMutex(QMutex::Recursive)
 {
     setObjectName("UDPSink");
+
+    m_channelizer = new UpChannelizer(this);
+    m_threadedChannelizer = new ThreadedBasebandSampleSource(m_channelizer, this);
+    m_deviceAPI->addThreadedSource(m_threadedChannelizer);
+
     m_udpHandler.setFeedbackMessageQueue(&m_inputMessageQueue);
     m_SSBFilter = new fftfilt(m_settings.m_lowCutoff / m_settings.m_inputSampleRate, m_settings.m_rfBandwidth / m_settings.m_inputSampleRate, m_ssbFftLen);
     m_SSBFilterBuffer = new Complex[m_ssbFftLen>>1]; // filter returns data exactly half of its size
@@ -61,6 +69,9 @@ UDPSink::~UDPSink()
 {
     delete[] m_SSBFilterBuffer;
     delete m_SSBFilter;
+    m_deviceAPI->removeThreadedSource(m_threadedChannelizer);
+    delete m_threadedChannelizer;
+    delete m_channelizer;
 }
 
 void UDPSink::start()
@@ -315,9 +326,9 @@ bool UDPSink::handleMessage(const Message& cmd)
     {
         MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd;
 
-//        m_channelizer->configure(m_channelizer->getInputMessageQueue(),
-//            cfg.getSampleRate(),
-//            cfg.getCenterFrequency());
+        m_channelizer->configure(m_channelizer->getInputMessageQueue(),
+            cfg.getSampleRate(),
+            cfg.getCenterFrequency());
 
         qDebug() << "UDPSink::handleMessage: MsgConfigureChannelizer:"
                 << " sampleRate: " << cfg.getSampleRate()
diff --git a/plugins/channeltx/udpsink/udpsink.h b/plugins/channeltx/udpsink/udpsink.h
index b72bbc6d7..286fc0234 100644
--- a/plugins/channeltx/udpsink/udpsink.h
+++ b/plugins/channeltx/udpsink/udpsink.h
@@ -31,6 +31,8 @@
 #include "udpsinksettings.h"
 
 class DeviceSinkAPI;
+class ThreadedBasebandSampleSource;
+class UpChannelizer;
 
 class UDPSink : public BasebandSampleSource {
     Q_OBJECT
@@ -147,6 +149,8 @@ private:
     };
 
     DeviceSinkAPI* m_deviceAPI;
+    ThreadedBasebandSampleSource* m_threadedChannelizer;
+    UpChannelizer* m_channelizer;
 
     UDPSinkSettings m_settings;
     Real m_squelch;
diff --git a/plugins/channeltx/udpsink/udpsinkgui.cpp b/plugins/channeltx/udpsink/udpsinkgui.cpp
index c6a64272b..46d5a904b 100644
--- a/plugins/channeltx/udpsink/udpsinkgui.cpp
+++ b/plugins/channeltx/udpsink/udpsinkgui.cpp
@@ -15,8 +15,6 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
 #include "device/devicesinkapi.h"
-#include "dsp/upchannelizer.h"
-#include "dsp/threadedbasebandsamplesource.h"
 #include "dsp/spectrumvis.h"
 #include "dsp/dspengine.h"
 #include "util/simpleserializer.h"
@@ -124,9 +122,6 @@ UDPSinkGUI::UDPSinkGUI(PluginAPI* pluginAPI, DeviceSinkAPI *deviceAPI, QWidget*
     m_spectrumVis = new SpectrumVis(ui->glSpectrum);
     m_udpSink = new UDPSink(m_deviceAPI, m_spectrumVis);
     m_udpSink->setMessageQueueToGUI(getInputMessageQueue());
-    m_channelizer = new UpChannelizer(m_udpSink);
-    m_threadedChannelizer = new ThreadedBasebandSampleSource(m_channelizer, this);
-    m_deviceAPI->addThreadedSource(m_threadedChannelizer);
 
     ui->fmDeviation->setEnabled(false);
     ui->deltaFrequencyLabel->setText(QString("%1f").arg(QChar(0x94, 0x03)));
@@ -167,9 +162,6 @@ UDPSinkGUI::UDPSinkGUI(PluginAPI* pluginAPI, DeviceSinkAPI *deviceAPI, QWidget*
 UDPSinkGUI::~UDPSinkGUI()
 {
     m_deviceAPI->removeChannelInstance(this);
-    m_deviceAPI->removeThreadedSource(m_threadedChannelizer);
-    delete m_threadedChannelizer;
-    delete m_channelizer;
     delete m_udpSink;
     delete m_spectrumVis;
     delete ui;
@@ -184,9 +176,10 @@ void UDPSinkGUI::applySettings(bool force)
 {
     if (m_doApplySettings)
     {
-        m_channelizer->configure(m_channelizer->getInputMessageQueue(),
+        UDPSink::MsgConfigureChannelizer *msgChan = UDPSink::MsgConfigureChannelizer::create(
                 m_settings.m_inputSampleRate,
                 m_settings.m_inputFrequencyOffset);
+        m_udpSink->getInputMessageQueue()->push(msgChan);
 
         UDPSink::MsgConfigureUDPSink* message = UDPSink::MsgConfigureUDPSink::create( m_settings, force);
         m_udpSink->getInputMessageQueue()->push(message);
diff --git a/plugins/channeltx/udpsink/udpsinkgui.h b/plugins/channeltx/udpsink/udpsinkgui.h
index 864a9f7b8..86006a75d 100644
--- a/plugins/channeltx/udpsink/udpsinkgui.h
+++ b/plugins/channeltx/udpsink/udpsinkgui.h
@@ -29,8 +29,6 @@
 
 class PluginAPI;
 class DeviceSinkAPI;
-class ThreadedBasebandSampleSource;
-class UpChannelizer;
 class UDPSink;
 class SpectrumVis;
 
@@ -83,8 +81,6 @@ private:
     Ui::UDPSinkGUI* ui;
     PluginAPI* m_pluginAPI;
     DeviceSinkAPI* m_deviceAPI;
-    ThreadedBasebandSampleSource* m_threadedChannelizer;
-    UpChannelizer* m_channelizer;
     SpectrumVis* m_spectrumVis;
     UDPSink* m_udpSink;
     MovingAverage<double> m_channelPowerAvg;