diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index 9dd3fcb..bbc2654 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -41,6 +41,9 @@ AppFrame::AppFrame() :
 
     this->SetSizer(vbox);
 
+    waterfallCanvas->SetFocusFromKbd();
+    waterfallCanvas->SetFocus();
+
 //    SetIcon(wxICON(sample));
 
 // Make a menubar
diff --git a/src/CubicSDR.cpp b/src/CubicSDR.cpp
index f7707c6..d9c417c 100644
--- a/src/CubicSDR.cpp
+++ b/src/CubicSDR.cpp
@@ -21,15 +21,11 @@ bool CubicSDR::OnInit() {
 
     frequency = DEFAULT_FREQ;
 
-    for (int i = 0; i < NUM_DEMODULATORS; i++) {
-        demodulatorTest[i] = demodMgr.newThread();
-        demodulatorTest[i]->getParams().frequency = DEFAULT_FREQ;
-        demodulatorTest[i]->run();
-    }
-
     audioVisualQueue = new DemodulatorThreadOutputQueue();
-    demodulatorTest[0]->setVisualOutputQueue(audioVisualQueue);
-    demodMgr.setActiveDemodulator(demodulatorTest[0]);
+    audioVisualQueue->set_max_num_items(1);
+
+//    demodulatorTest[0]->setVisualOutputQueue(audioVisualQueue);
+//    demodMgr.setActiveDemodulator(demodulatorTest[0]);
 
     threadCmdQueueSDR = new SDRThreadCommandQueue;
     sdrThread = new SDRThread(threadCmdQueueSDR);
@@ -38,15 +34,12 @@ bool CubicSDR::OnInit() {
 
     iqPostDataQueue = new SDRThreadIQDataQueue;
     iqVisualQueue = new SDRThreadIQDataQueue;
+    iqVisualQueue->set_max_num_items(1);
 
     sdrThread->setIQDataOutQueue(iqPostDataQueue);
     sdrPostThread->setIQDataInQueue(iqPostDataQueue);
     sdrPostThread->setIQVisualQueue(iqVisualQueue);
 
-    for (int i = 0; i < NUM_DEMODULATORS; i++) {
-        sdrPostThread->bindDemodulator(demodulatorTest[i]);
-    }
-
     t_PostSDR = new std::thread(&SDRPostThread::threadMain, sdrPostThread);
     t_SDR = new std::thread(&SDRThread::threadMain, sdrThread);
 
@@ -82,7 +75,6 @@ int CubicSDR::OnExit() {
 
     demodMgr.terminateAll();
 
-
     delete threadCmdQueueSDR;
 
     delete iqVisualQueue;
@@ -117,3 +109,29 @@ void CubicSDR::setFrequency(unsigned int freq) {
 int CubicSDR::getFrequency() {
     return frequency;
 }
+
+DemodulatorThreadOutputQueue* CubicSDR::getAudioVisualQueue() {
+    return audioVisualQueue;
+}
+
+SDRThreadIQDataQueue* CubicSDR::getIQVisualQueue() {
+    return iqVisualQueue;
+}
+
+DemodulatorMgr &CubicSDR::getDemodMgr() {
+    return demodMgr;
+}
+
+void CubicSDR::bindDemodulator(DemodulatorInstance *demod) {
+    if (!demod) {
+        return;
+    }
+    sdrPostThread->bindDemodulator(demod);
+}
+
+void CubicSDR::removeDemodulator(DemodulatorInstance *demod) {
+    if (!demod) {
+        return;
+    }
+    sdrPostThread->removeDemodulator(demod);
+}
diff --git a/src/CubicSDR.h b/src/CubicSDR.h
index 1b990e7..5128368 100644
--- a/src/CubicSDR.h
+++ b/src/CubicSDR.h
@@ -21,7 +21,7 @@ class CubicSDR: public wxApp {
 public:
     CubicSDR() :
             m_glContext(NULL), t_PostSDR(NULL), t_SDR(NULL), audioVisualQueue(NULL), threadCmdQueueSDR(NULL), iqVisualQueue(NULL), frequency(
-                    DEFAULT_FREQ), sdrPostThread(NULL), iqPostDataQueue(NULL), sdrThread(NULL) {
+            DEFAULT_FREQ), sdrPostThread(NULL), iqPostDataQueue(NULL), sdrThread(NULL) {
 
     }
 
@@ -33,25 +33,12 @@ public:
     void setFrequency(unsigned int freq);
     int getFrequency();
 
-    DemodulatorThreadOutputQueue* getAudioVisualQueue() {
-        return audioVisualQueue;
-    }
+    DemodulatorThreadOutputQueue* getAudioVisualQueue();
+    SDRThreadIQDataQueue* getIQVisualQueue();
+    DemodulatorMgr &getDemodMgr();
 
-    SDRThreadIQDataQueue* getIQVisualQueue() {
-        return iqVisualQueue;
-    }
-
-    DemodulatorInstance *getDemodTest() {
-        return demodulatorTest[0];
-    }
-
-    DemodulatorMgr &getDemodMgr() {
-        return demodMgr;
-    }
-
-    void bindDemodulator(DemodulatorInstance *newDemod) {
-        sdrPostThread->bindDemodulator(newDemod);
-    }
+    void bindDemodulator(DemodulatorInstance *demod);
+    void removeDemodulator(DemodulatorInstance *demod);
 
 private:
     PrimaryGLContext *m_glContext;
@@ -60,8 +47,6 @@ private:
 
     unsigned int frequency;
 
-    DemodulatorInstance *demodulatorTest[NUM_DEMODULATORS];
-
     SDRThread *sdrThread;
     SDRPostThread *sdrPostThread;
 
diff --git a/src/demod/DemodulatorMgr.cpp b/src/demod/DemodulatorMgr.cpp
index 9302eb2..d5e8313 100644
--- a/src/demod/DemodulatorMgr.cpp
+++ b/src/demod/DemodulatorMgr.cpp
@@ -1,6 +1,7 @@
 #include <DemodulatorMgr.h>
 #include <sstream>
 #include <algorithm>
+#include "CubicSDR.h"
 
 DemodulatorInstance::DemodulatorInstance() :
         t_Demod(NULL), t_Audio(NULL), threadQueueDemod(NULL), demodulatorThread(NULL) {
@@ -83,14 +84,12 @@ DemodulatorThreadParameters &DemodulatorInstance::getParams() {
 void DemodulatorInstance::terminate() {
     std::cout << "Terminating demodulator thread.." << std::endl;
     demodulatorThread->terminate();
-#ifdef __APPLE__
-    pthread_join(t_Demod,NULL);
-#else
-    t_Demod->join();
-#endif
+//#ifdef __APPLE__
+//    pthread_join(t_Demod,NULL);
+//#else
+//#endif
     std::cout << "Terminating demodulator audio thread.." << std::endl;
     audioThread->terminate();
-    t_Audio->join();
 }
 
 std::string DemodulatorInstance::getLabel() {
@@ -102,7 +101,7 @@ void DemodulatorInstance::setLabel(std::string labelStr) {
 }
 
 DemodulatorMgr::DemodulatorMgr() :
-        activeDemodulator(NULL), lastActiveDemodulator(NULL) {
+        activeDemodulator(NULL), lastActiveDemodulator(NULL), activeVisualDemodulator(NULL) {
 
 }
 
@@ -127,7 +126,6 @@ void DemodulatorMgr::terminateAll() {
         DemodulatorInstance *d = demods.back();
         demods.pop_back();
         d->terminate();
-        delete d;
     }
 }
 
@@ -135,6 +133,27 @@ std::vector<DemodulatorInstance *> &DemodulatorMgr::getDemodulators() {
     return demods;
 }
 
+void DemodulatorMgr::deleteThread(DemodulatorInstance *demod) {
+    std::vector<DemodulatorInstance *>::iterator i;
+
+    i = std::find(demods.begin(),demods.end(),demod);
+
+    if (activeDemodulator == demod) {
+        activeDemodulator = NULL;
+    }
+    if (lastActiveDemodulator == demod) {
+        lastActiveDemodulator = NULL;
+    }
+    if (activeVisualDemodulator == demod) {
+        activeVisualDemodulator = NULL;
+    }
+
+    if (i != demods.end()) {
+        demods.erase(i);
+        demod->terminate();
+    }
+}
+
 std::vector<DemodulatorInstance *> *DemodulatorMgr::getDemodulatorsAt(int freq, int bandwidth) {
     std::vector<DemodulatorInstance *> *foundDemods = new std::vector<DemodulatorInstance *>();
 
@@ -163,6 +182,22 @@ void DemodulatorMgr::setActiveDemodulator(DemodulatorInstance *demod, bool tempo
             lastActiveDemodulator = demod;
         }
     }
+
+    if (activeVisualDemodulator) {
+        activeVisualDemodulator->setVisualOutputQueue(NULL);
+    }
+    if (demod) {
+        demod->setVisualOutputQueue(wxGetApp().getAudioVisualQueue());
+        activeVisualDemodulator = demod;
+    } else {
+        DemodulatorInstance *last = getLastActiveDemodulator();
+        if (last) {
+            last->setVisualOutputQueue(wxGetApp().getAudioVisualQueue());
+        }
+        activeVisualDemodulator = last;
+    }
+
+
     activeDemodulator = demod;
 }
 
diff --git a/src/demod/DemodulatorMgr.h b/src/demod/DemodulatorMgr.h
index 9b6ad28..2bed534 100644
--- a/src/demod/DemodulatorMgr.h
+++ b/src/demod/DemodulatorMgr.h
@@ -47,6 +47,7 @@ public:
     DemodulatorInstance *newThread();
     std::vector<DemodulatorInstance *> &getDemodulators();
     std::vector<DemodulatorInstance *> *getDemodulatorsAt(int freq, int bandwidth);
+    void deleteThread(DemodulatorInstance *);
 
     void terminateAll();
 
@@ -58,4 +59,5 @@ private:
     std::vector<DemodulatorInstance *> demods;
     DemodulatorInstance *activeDemodulator;
     DemodulatorInstance *lastActiveDemodulator;
+    DemodulatorInstance *activeVisualDemodulator;
 };
diff --git a/src/demod/DemodulatorThread.cpp b/src/demod/DemodulatorThread.cpp
index dda7d05..10048e0 100644
--- a/src/demod/DemodulatorThread.cpp
+++ b/src/demod/DemodulatorThread.cpp
@@ -255,7 +255,5 @@ void DemodulatorThread::terminate() {
     terminated = true;
     DemodulatorThreadIQData inp;    // push dummy to nudge queue
     inputQueue->push(inp);
-
     workerThread->terminate();
-    t_Worker->join();
 }
diff --git a/src/demod/DemodulatorThread.h b/src/demod/DemodulatorThread.h
index 227182f..7c593e0 100644
--- a/src/demod/DemodulatorThread.h
+++ b/src/demod/DemodulatorThread.h
@@ -131,7 +131,6 @@ public:
 
 	void setVisualOutputQueue(DemodulatorThreadOutputQueue *tQueue) {
 		visOutQueue = tQueue;
-		visOutQueue->set_max_num_items(1);
 	}
 
 	void setCommandQueue(DemodulatorThreadCommandQueue *tQueue) {
diff --git a/src/sdr/SDRPostThread.cpp b/src/sdr/SDRPostThread.cpp
index cd48b1b..e052cff 100644
--- a/src/sdr/SDRPostThread.cpp
+++ b/src/sdr/SDRPostThread.cpp
@@ -50,7 +50,9 @@ void SDRPostThread::threadMain() {
             }
 
             if (iqVisualQueue != NULL) {
-                iqVisualQueue.load()->push(dataOut);
+                if (iqVisualQueue.load()->empty()) {
+                    iqVisualQueue.load()->push(dataOut);
+                }
             }
 
             if (demodulators.size()) {
diff --git a/src/sdr/SDRPostThread.h b/src/sdr/SDRPostThread.h
index 4b3d737..5d79fa0 100644
--- a/src/sdr/SDRPostThread.h
+++ b/src/sdr/SDRPostThread.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "SDRThread.h"
+#include <algorithm>
 
 class SDRPostThread {
 public:
@@ -15,6 +16,20 @@ public:
         demodulators.push_back(demod);
     }
 
+    void removeDemodulator(DemodulatorInstance *demod) {
+        if (!demod) {
+            return;
+        }
+
+        std::vector<DemodulatorInstance *>::iterator i;
+
+        i = std::find(demodulators.begin(), demodulators.end(), demod);
+
+        if (i != demodulators.end()) {
+            demodulators.erase(i);
+        }
+    }
+
     void threadMain();
 
     void setIQDataInQueue(SDRThreadIQDataQueue* iqDataQueue) {
@@ -25,7 +40,6 @@ public:
     }
     void setIQVisualQueue(SDRThreadIQDataQueue *iqVisQueue) {
         iqVisualQueue = iqVisQueue;
-        iqVisualQueue.load()->set_max_num_items(1);
     }
 
     void terminate();
diff --git a/src/visual/PrimaryGLContext.cpp b/src/visual/PrimaryGLContext.cpp
index f34d47f..91c4c4b 100644
--- a/src/visual/PrimaryGLContext.cpp
+++ b/src/visual/PrimaryGLContext.cpp
@@ -194,7 +194,7 @@ void PrimaryGLContext::DrawFreqSelector(float uxPos, float r, float g, float b)
     int bw = 0;
 
     if (!demod) {
-        bw = 200000;
+        bw = defaultDemodParams.bandwidth;
     } else {
         bw = demod->getParams().bandwidth;
     }
@@ -211,7 +211,7 @@ void PrimaryGLContext::DrawFreqSelector(float uxPos, float r, float g, float b)
     glVertex3f((uxPos - 0.5) * 2.0, 1.0, 0.0);
     glVertex3f((uxPos - 0.5) * 2.0, -1.0, 0.0);
 
-    float ofs = ((float) demod->getParams().bandwidth) / (float) SRATE;
+    float ofs = ((float) bw) / (float) SRATE;
 
     glVertex3f((uxPos - 0.5) * 2.0 - ofs, 1.0, 0.0);
     glVertex3f((uxPos - 0.5) * 2.0 - ofs, -1.0, 0.0);
diff --git a/src/visual/PrimaryGLContext.h b/src/visual/PrimaryGLContext.h
index 7551c92..2887971 100644
--- a/src/visual/PrimaryGLContext.h
+++ b/src/visual/PrimaryGLContext.h
@@ -29,4 +29,5 @@ public:
 
 private:
     static GLFont fonts[GLFONT_MAX];
+    DemodulatorThreadParameters defaultDemodParams;
 };
diff --git a/src/visual/ScopeCanvas.cpp b/src/visual/ScopeCanvas.cpp
index 442f476..54db54d 100644
--- a/src/visual/ScopeCanvas.cpp
+++ b/src/visual/ScopeCanvas.cpp
@@ -16,7 +16,6 @@
 #include <algorithm>
 
 wxBEGIN_EVENT_TABLE(ScopeCanvas, wxGLCanvas) EVT_PAINT(ScopeCanvas::OnPaint)
-EVT_KEY_DOWN(ScopeCanvas::OnKeyDown)
 EVT_IDLE(ScopeCanvas::OnIdle)
 wxEND_EVENT_TABLE()
 
@@ -48,35 +47,6 @@ void ScopeCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
     SwapBuffers();
 }
 
-void ScopeCanvas::OnKeyDown(wxKeyEvent& event) {
-    float angle = 5.0;
-
-    unsigned int freq;
-    switch (event.GetKeyCode()) {
-    case WXK_RIGHT:
-        freq = wxGetApp().getFrequency();
-        freq += SRATE/2;
-        wxGetApp().setFrequency(freq);
-        ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
-        break;
-    case WXK_LEFT:
-        freq = wxGetApp().getFrequency();
-        freq -= SRATE/2;
-        wxGetApp().setFrequency(freq);
-        ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
-        break;
-    case WXK_DOWN:
-        break;
-    case WXK_UP:
-        break;
-    case WXK_SPACE:
-        break;
-    default:
-        event.Skip();
-        return;
-    }
-}
-
 void ScopeCanvas::OnIdle(wxIdleEvent &event) {
 //    timer.update();
 //    frameTimer += timer.lastUpdateSeconds();
diff --git a/src/visual/ScopeCanvas.h b/src/visual/ScopeCanvas.h
index bc12903..9cd40f9 100644
--- a/src/visual/ScopeCanvas.h
+++ b/src/visual/ScopeCanvas.h
@@ -21,7 +21,6 @@ public:
     void setWaveformPoints(std::vector<float> &waveform_points_in);
 private:
     void OnPaint(wxPaintEvent& event);
-    void OnKeyDown(wxKeyEvent& event);
 
     void OnIdle(wxIdleEvent &event);
 
diff --git a/src/visual/SpectrumCanvas.cpp b/src/visual/SpectrumCanvas.cpp
index b3edee5..8550e1d 100644
--- a/src/visual/SpectrumCanvas.cpp
+++ b/src/visual/SpectrumCanvas.cpp
@@ -17,7 +17,6 @@
 #include <wx/numformatter.h>
 
 wxBEGIN_EVENT_TABLE(SpectrumCanvas, wxGLCanvas) EVT_PAINT(SpectrumCanvas::OnPaint)
-EVT_KEY_DOWN(SpectrumCanvas::OnKeyDown)
 EVT_IDLE(SpectrumCanvas::OnIdle)
 EVT_MOTION(SpectrumCanvas::mouseMoved)
 EVT_LEFT_DOWN(SpectrumCanvas::mouseDown)
@@ -75,35 +74,6 @@ void SpectrumCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
     SwapBuffers();
 }
 
-void SpectrumCanvas::OnKeyDown(wxKeyEvent& event) {
-    float angle = 5.0;
-
-    unsigned int freq;
-    switch (event.GetKeyCode()) {
-    case WXK_RIGHT:
-        freq = wxGetApp().getFrequency();
-        freq += SRATE / 2;
-        wxGetApp().setFrequency(freq);
-        ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
-        break;
-    case WXK_LEFT:
-        freq = wxGetApp().getFrequency();
-        freq -= SRATE / 2;
-        wxGetApp().setFrequency(freq);
-        ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
-        break;
-    case WXK_DOWN:
-        break;
-    case WXK_UP:
-        break;
-    case WXK_SPACE:
-        break;
-    default:
-        event.Skip();
-        return;
-    }
-}
-
 void SpectrumCanvas::setData(std::vector<signed char> *data) {
 
     if (data && data->size()) {
diff --git a/src/visual/SpectrumCanvas.h b/src/visual/SpectrumCanvas.h
index 46d68ef..5f96fd5 100644
--- a/src/visual/SpectrumCanvas.h
+++ b/src/visual/SpectrumCanvas.h
@@ -20,7 +20,6 @@ public:
     void setData(std::vector<signed char> *data);
 private:
     void OnPaint(wxPaintEvent& event);
-    void OnKeyDown(wxKeyEvent& event);
 
     void OnIdle(wxIdleEvent &event);
 
diff --git a/src/visual/WaterfallCanvas.cpp b/src/visual/WaterfallCanvas.cpp
index e1c844d..1cc470c 100644
--- a/src/visual/WaterfallCanvas.cpp
+++ b/src/visual/WaterfallCanvas.cpp
@@ -30,8 +30,8 @@ wxEND_EVENT_TABLE()
 
 WaterfallCanvas::WaterfallCanvas(wxWindow *parent, int *attribList) :
         wxGLCanvas(parent, wxID_ANY, attribList, wxDefaultPosition, wxDefaultSize,
-        wxFULL_REPAINT_ON_RESIZE), parent(parent), frameTimer(0), activeDemodulatorBandwidth(0), dragState(WF_DRAG_NONE), nextDragState(WF_DRAG_NONE), shiftDown(
-        false) {
+        wxFULL_REPAINT_ON_RESIZE), parent(parent), frameTimer(0), dragState(WF_DRAG_NONE), nextDragState(WF_DRAG_NONE), shiftDown(
+        false), activeDemodulatorBandwidth(0), activeDemodulatorFrequency(0) {
 
     int in_block_size = BUF_SIZE / 2;
     int out_block_size = FFT_SIZE;
@@ -88,6 +88,8 @@ void WaterfallCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
                     glContext->DrawDemod(lastActiveDemodulator, 1, 0, 0);
                     glContext->DrawFreqSelector(mTracker.getMouseX(), 1, 1, 0);
                 }
+            } else {
+                glContext->DrawFreqSelector(mTracker.getMouseX(), 1, 1, 0);
             }
         } else {
             if (lastActiveDemodulator) {
@@ -117,6 +119,7 @@ void WaterfallCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) {
 }
 
 void WaterfallCanvas::OnKeyUp(wxKeyEvent& event) {
+    shiftDown = event.ShiftDown();
 
 //    switch (event.GetKeyCode()) {
 //    }
@@ -125,6 +128,10 @@ void WaterfallCanvas::OnKeyUp(wxKeyEvent& event) {
 void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
     float angle = 5.0;
 
+    shiftDown = event.ShiftDown();
+
+    DemodulatorInstance *activeDemod = wxGetApp().getDemodMgr().getActiveDemodulator();
+
     unsigned int freq;
     switch (event.GetKeyCode()) {
     case WXK_RIGHT:
@@ -139,12 +146,15 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;
-    case WXK_DOWN:
-        break;
-    case WXK_UP:
-        break;
-    case WXK_SPACE:
+    case 'D':
+    case WXK_DELETE:
+        if (!activeDemod) {
+            break;
+        }
+        wxGetApp().getDemodMgr().deleteThread(activeDemod);
+        wxGetApp().removeDemodulator(activeDemod);
         break;
+
     default:
         event.Skip();
         return;
@@ -354,6 +364,8 @@ void WaterfallCanvas::mouseDown(wxMouseEvent& event) {
     mTracker.OnMouseDown(event);
     dragState = nextDragState;
 
+    shiftDown = event.ShiftDown();
+
     if (dragState) {
         wxGetApp().getDemodMgr().setActiveDemodulator(wxGetApp().getDemodMgr().getActiveDemodulator(), false);
     }
@@ -363,13 +375,14 @@ void WaterfallCanvas::mouseDown(wxMouseEvent& event) {
 }
 
 void WaterfallCanvas::mouseWheelMoved(wxMouseEvent& event) {
-    DemodulatorInstance *demod = wxGetApp().getDemodTest();
     mTracker.OnMouseWheelMoved(event);
 }
 
 void WaterfallCanvas::mouseReleased(wxMouseEvent& event) {
     mTracker.OnMouseReleased(event);
 
+    shiftDown = event.ShiftDown();
+
     mTracker.setVertDragLock(true);
     mTracker.setHorizDragLock(true);
 
@@ -380,7 +393,7 @@ void WaterfallCanvas::mouseReleased(wxMouseEvent& event) {
         int center_freq = wxGetApp().getFrequency();
         int freq = center_freq - (int) (0.5 * (float) SRATE) + (int) ((float) pos * (float) SRATE);
 
-        if (!shiftDown) {
+        if (!shiftDown && wxGetApp().getDemodMgr().getDemodulators().size()) {
             demod = wxGetApp().getDemodMgr().getLastActiveDemodulator();
         } else {
             demod = wxGetApp().getDemodMgr().newThread();
@@ -393,6 +406,8 @@ void WaterfallCanvas::mouseReleased(wxMouseEvent& event) {
             demod->run();
 
             wxGetApp().bindDemodulator(demod);
+
+            wxGetApp().getDemodMgr().setActiveDemodulator(demod);
         }
 
         if (dragState == WF_DRAG_NONE) {
@@ -401,12 +416,13 @@ void WaterfallCanvas::mouseReleased(wxMouseEvent& event) {
                 return;
             }
 
-
             DemodulatorThreadCommand command;
             command.cmd = DemodulatorThreadCommand::DEMOD_THREAD_CMD_SET_FREQUENCY;
             command.int_value = freq;
+            demod->getCommandQueue()->push(command);    // doesn't always work on first push?
             demod->getCommandQueue()->push(command);
 
+
             ((wxFrame*) parent)->GetStatusBar()->SetStatusText(
                     wxString::Format(wxT("Set demodulator frequency: %s"),
                             wxNumberFormatter::ToString((long) freq, wxNumberFormatter::Style_WithThousandsSep)));