diff --git a/debian/changelog b/debian/changelog
index b947fcf68..ce6c5765b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,9 +1,10 @@
 sdrangel (4.0.6-1) unstable; urgency=medium
 
   * Web API: RTL-SDR: fixed RF bandwidth setting
-  * Web API: enhnaced DV serial and AM demod interfaces
+  * Web API: enhanced DV serial and AM demod interfaces
+  * Fixed power display going to floor value in some demods
 
- -- Edouard Griffiths, F4EXB <f4exb06@gmail.com>  Sun, 05 Aug 2018 09:14:18 +0200
+ -- Edouard Griffiths, F4EXB <f4exb06@gmail.com>  Sun, 05 Aug 2018 19:14:18 +0200
   
 sdrangel (4.0.5-1) unstable; urgency=medium
 
diff --git a/plugins/channelrx/demodam/amdemod.h b/plugins/channelrx/demodam/amdemod.h
index d8b292417..f08ed6451 100644
--- a/plugins/channelrx/demodam/amdemod.h
+++ b/plugins/channelrx/demodam/amdemod.h
@@ -125,20 +125,38 @@ public:
 	bool getPllLocked() const { return m_settings.m_pll && m_pll.locked(); }
 	Real getPllFrequency() const { return m_pll.getFreq(); }
 
-	void getMagSqLevels(double& avg, double& peak, int& nbSamples)
-	{
-	    avg = m_magsqCount == 0 ? 1e-10 : m_magsqSum / m_magsqCount;
-	    peak = m_magsqPeak == 0.0 ? 1e-10 : m_magsqPeak;
-	    nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
-	    m_magsqSum = 0.0f;
+    void getMagSqLevels(double& avg, double& peak, int& nbSamples)
+    {
+        if (m_magsqCount > 0)
+        {
+            m_magsq = m_magsqSum / m_magsqCount;
+            m_magSqLevelStore.m_magsq = m_magsq;
+            m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
+        }
+
+        avg = m_magSqLevelStore.m_magsq;
+        peak = m_magSqLevelStore.m_magsqPeak;
+        nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
+
+        m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
-	}
+    }
 
     static const QString m_channelIdURI;
     static const QString m_channelId;
 
 private:
+    struct MagSqLevelsStore
+    {
+        MagSqLevelsStore() :
+            m_magsq(1e-12),
+            m_magsqPeak(1e-12)
+        {}
+        double m_magsq;
+        double m_magsqPeak;
+    };
+
 	enum RateState {
 		RSInitialFill,
 		RSRunning
@@ -167,6 +185,7 @@ private:
 	double m_magsqSum;
 	double m_magsqPeak;
 	int  m_magsqCount;
+	MagSqLevelsStore m_magSqLevelStore;
 
 	MovingAverageUtil<Real, double, 16> m_movingAverage;
 	SimpleAGC<4800> m_volumeAGC;
diff --git a/plugins/channelrx/demodbfm/bfmdemod.h b/plugins/channelrx/demodbfm/bfmdemod.h
index 99c76d07f..700deb6cf 100644
--- a/plugins/channelrx/demodbfm/bfmdemod.h
+++ b/plugins/channelrx/demodbfm/bfmdemod.h
@@ -146,10 +146,17 @@ public:
 
     void getMagSqLevels(double& avg, double& peak, int& nbSamples)
     {
-        avg = m_magsqCount == 0 ? 1e-10 : m_magsqSum / m_magsqCount;
-        m_magsq = avg;
-        peak = m_magsqPeak == 0.0 ? 1e-10 : m_magsqPeak;
+        if (m_magsqCount > 0)
+        {
+            m_magsq = m_magsqSum / m_magsqCount;
+            m_magSqLevelStore.m_magsq = m_magsq;
+            m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
+        }
+
+        avg = m_magSqLevelStore.m_magsq;
+        peak = m_magSqLevelStore.m_magsqPeak;
         nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
+
         m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
@@ -184,6 +191,16 @@ public:
     static const QString m_channelId;
 
 private:
+    struct MagSqLevelsStore
+    {
+        MagSqLevelsStore() :
+            m_magsq(1e-12),
+            m_magsqPeak(1e-12)
+        {}
+        double m_magsq;
+        double m_magsqPeak;
+    };
+
 	enum RateState {
 		RSInitialFill,
 		RSRunning
@@ -224,6 +241,7 @@ private:
     double m_magsqSum;
     double m_magsqPeak;
     int    m_magsqCount;
+    MagSqLevelsStore m_magSqLevelStore;
 
 	AudioVector m_audioBuffer;
 	uint m_audioBufferFill;
diff --git a/plugins/channelrx/demodbfm/bfmplugin.cpp b/plugins/channelrx/demodbfm/bfmplugin.cpp
index bc4903103..0d813d9ef 100644
--- a/plugins/channelrx/demodbfm/bfmplugin.cpp
+++ b/plugins/channelrx/demodbfm/bfmplugin.cpp
@@ -27,7 +27,7 @@
 
 const PluginDescriptor BFMPlugin::m_pluginDescriptor = {
 	QString("Broadcast FM Demodulator"),
-	QString("4.0.2"),
+	QString("4.0.6"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,
diff --git a/plugins/channelrx/demoddsd/dsddemod.h b/plugins/channelrx/demoddsd/dsddemod.h
index 9ffeef680..f5d906723 100644
--- a/plugins/channelrx/demoddsd/dsddemod.h
+++ b/plugins/channelrx/demoddsd/dsddemod.h
@@ -117,10 +117,17 @@ public:
 
     void getMagSqLevels(double& avg, double& peak, int& nbSamples)
     {
-        avg = m_magsqCount == 0 ? 1e-10 : m_magsqSum / m_magsqCount;
-        m_magsq = avg;
-        peak = m_magsqPeak == 0.0 ? 1e-10 : m_magsqPeak;
+        if (m_magsqCount > 0)
+        {
+            m_magsq = m_magsqSum / m_magsqCount;
+            m_magSqLevelStore.m_magsq = m_magsq;
+            m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
+        }
+
+        avg = m_magSqLevelStore.m_magsq;
+        peak = m_magSqLevelStore.m_magsqPeak;
         nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
+
         m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
@@ -146,6 +153,16 @@ public:
     static const QString m_channelId;
 
 private:
+    struct MagSqLevelsStore
+    {
+        MagSqLevelsStore() :
+            m_magsq(1e-12),
+            m_magsqPeak(1e-12)
+        {}
+        double m_magsq;
+        double m_magsqPeak;
+    };
+
     typedef enum
     {
         signalFormatNone,
@@ -208,6 +225,7 @@ private:
     double m_magsqSum;
     double m_magsqPeak;
     int  m_magsqCount;
+    MagSqLevelsStore m_magSqLevelStore;
 
 	SampleVector m_scopeSampleBuffer;
 	AudioVector m_audioBuffer;
diff --git a/plugins/channelrx/demoddsd/dsddemodplugin.cpp b/plugins/channelrx/demoddsd/dsddemodplugin.cpp
index 61414fd45..32c365ae0 100644
--- a/plugins/channelrx/demoddsd/dsddemodplugin.cpp
+++ b/plugins/channelrx/demoddsd/dsddemodplugin.cpp
@@ -27,7 +27,7 @@
 
 const PluginDescriptor DSDDemodPlugin::m_pluginDescriptor = {
 	QString("DSD Demodulator"),
-	QString("4.0.1"),
+	QString("4.0.6"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,
diff --git a/plugins/channelrx/demodnfm/nfmdemod.h b/plugins/channelrx/demodnfm/nfmdemod.h
index be42291c2..ae1ec8c9b 100644
--- a/plugins/channelrx/demodnfm/nfmdemod.h
+++ b/plugins/channelrx/demodnfm/nfmdemod.h
@@ -154,10 +154,17 @@ public:
 
     void getMagSqLevels(double& avg, double& peak, int& nbSamples)
     {
-        avg = m_magsqCount == 0 ? 1e-10 : m_magsqSum / m_magsqCount;
-        m_magsq = avg;
-        peak = m_magsqPeak == 0.0 ? 1e-10 : m_magsqPeak;
+        if (m_magsqCount > 0)
+        {
+            m_magsq = m_magsqSum / m_magsqCount;
+            m_magSqLevelStore.m_magsq = m_magsq;
+            m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
+        }
+
+        avg = m_magSqLevelStore.m_magsq;
+        peak = m_magSqLevelStore.m_magsqPeak;
         nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
+
         m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
@@ -167,6 +174,16 @@ public:
     static const QString m_channelId;
 
 private:
+    struct MagSqLevelsStore
+    {
+        MagSqLevelsStore() :
+            m_magsq(1e-12),
+            m_magsqPeak(1e-12)
+        {}
+        double m_magsq;
+        double m_magsqPeak;
+    };
+
 	enum RateState {
 		RSInitialFill,
 		RSRunning
@@ -203,6 +220,7 @@ private:
 	double m_magsqSum;
 	double m_magsqPeak;
     int  m_magsqCount;
+    MagSqLevelsStore m_magSqLevelStore;
 
 	MovingAverageUtil<Real, double, 32> m_movingAverage;
 	AFSquelch m_afSquelch;
diff --git a/plugins/channelrx/demodnfm/nfmplugin.cpp b/plugins/channelrx/demodnfm/nfmplugin.cpp
index 928dcc072..e23e7fa6b 100644
--- a/plugins/channelrx/demodnfm/nfmplugin.cpp
+++ b/plugins/channelrx/demodnfm/nfmplugin.cpp
@@ -9,7 +9,7 @@
 
 const PluginDescriptor NFMPlugin::m_pluginDescriptor = {
 	QString("NFM Demodulator"),
-	QString("3.14.6"),
+	QString("4.0.6"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,
diff --git a/plugins/channelrx/demodssb/ssbdemod.h b/plugins/channelrx/demodssb/ssbdemod.h
index 4dabab796..27521aa01 100644
--- a/plugins/channelrx/demodssb/ssbdemod.h
+++ b/plugins/channelrx/demodssb/ssbdemod.h
@@ -126,10 +126,17 @@ public:
 
     void getMagSqLevels(double& avg, double& peak, int& nbSamples)
     {
-        avg = m_magsqCount == 0 ? 1e-10 : m_magsqSum / m_magsqCount;
-        m_magsq = avg;
-        peak = m_magsqPeak == 0.0 ? 1e-10 : m_magsqPeak;
+        if (m_magsqCount > 0)
+        {
+            m_magsq = m_magsqSum / m_magsqCount;
+            m_magSqLevelStore.m_magsq = m_magsq;
+            m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
+        }
+
+        avg = m_magSqLevelStore.m_magsq;
+        peak = m_magSqLevelStore.m_magsqPeak;
         nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
+
         m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
@@ -153,6 +160,16 @@ public:
     static const QString m_channelId;
 
 private:
+    struct MagSqLevelsStore
+    {
+        MagSqLevelsStore() :
+            m_magsq(1e-12),
+            m_magsqPeak(1e-12)
+        {}
+        double m_magsq;
+        double m_magsqPeak;
+    };
+
 	class MsgConfigureSSBDemodPrivate : public Message {
 		MESSAGE_CLASS_DECLARATION
 
@@ -268,6 +285,7 @@ private:
 	double m_magsqSum;
 	double m_magsqPeak;
     int  m_magsqCount;
+    MagSqLevelsStore m_magSqLevelStore;
     MagAGC m_agc;
     bool m_agcActive;
     bool m_agcClamping;
diff --git a/plugins/channelrx/demodssb/ssbplugin.cpp b/plugins/channelrx/demodssb/ssbplugin.cpp
index f964c394b..04281096d 100644
--- a/plugins/channelrx/demodssb/ssbplugin.cpp
+++ b/plugins/channelrx/demodssb/ssbplugin.cpp
@@ -10,7 +10,7 @@
 
 const PluginDescriptor SSBPlugin::m_pluginDescriptor = {
 	QString("SSB Demodulator"),
-	QString("4.0.2"),
+	QString("4.0.6"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,
diff --git a/plugins/channelrx/demodwfm/wfmdemod.h b/plugins/channelrx/demodwfm/wfmdemod.h
index 0e594eb33..fa707a600 100644
--- a/plugins/channelrx/demodwfm/wfmdemod.h
+++ b/plugins/channelrx/demodwfm/wfmdemod.h
@@ -109,10 +109,17 @@ public:
 
     void getMagSqLevels(double& avg, double& peak, int& nbSamples)
     {
-        avg = m_magsqCount == 0 ? 1e-10 : m_magsqSum / m_magsqCount;
-        m_magsq = avg;
-        peak = m_magsqPeak == 0.0 ? 1e-10 : m_magsqPeak;
+        if (m_magsqCount > 0)
+        {
+            m_magsq = m_magsqSum / m_magsqCount;
+            m_magSqLevelStore.m_magsq = m_magsq;
+            m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
+        }
+
+        avg = m_magSqLevelStore.m_magsq;
+        peak = m_magSqLevelStore.m_magsqPeak;
         nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
+
         m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
@@ -145,6 +152,16 @@ public:
     static const QString m_channelId;
 
 private:
+    struct MagSqLevelsStore
+    {
+        MagSqLevelsStore() :
+            m_magsq(1e-12),
+            m_magsqPeak(1e-12)
+        {}
+        double m_magsq;
+        double m_magsqPeak;
+    };
+
 	enum RateState {
 		RSInitialFill,
 		RSRunning
@@ -172,6 +189,7 @@ private:
     double m_magsqSum;
     double m_magsqPeak;
     int  m_magsqCount;
+    MagSqLevelsStore m_magSqLevelStore;
 
 	MovingAverageUtil<Real, double, 16> m_movingAverage;
 	Real m_fmExcursion;
diff --git a/plugins/channelrx/demodwfm/wfmplugin.cpp b/plugins/channelrx/demodwfm/wfmplugin.cpp
index fa0c2ad8f..8d2836832 100644
--- a/plugins/channelrx/demodwfm/wfmplugin.cpp
+++ b/plugins/channelrx/demodwfm/wfmplugin.cpp
@@ -10,7 +10,7 @@
 
 const PluginDescriptor WFMPlugin::m_pluginDescriptor = {
 	QString("WFM Demodulator"),
-	QString("4.0.0"),
+	QString("4.0.6"),
 	QString("(c) Edouard Griffiths, F4EXB"),
 	QString("https://github.com/f4exb/sdrangel"),
 	true,