diff --git a/plugins/channeltx/modatv/atvmod.cpp b/plugins/channeltx/modatv/atvmod.cpp
index 75ddd4243..ab960a132 100644
--- a/plugins/channeltx/modatv/atvmod.cpp
+++ b/plugins/channeltx/modatv/atvmod.cpp
@@ -106,7 +106,8 @@ void ATVMod::configure(MessageQueue* messageQueue,
             bool videoPlayLoop,
             bool videoPlay,
             bool cameraPlay,
-            bool channelMute)
+            bool channelMute,
+            bool invertedVideo)
 {
     Message* cmd = MsgConfigureATVMod::create(
             rfBandwidth,
@@ -118,7 +119,8 @@ void ATVMod::configure(MessageQueue* messageQueue,
             videoPlayLoop,
             videoPlay,
             cameraPlay,
-            channelMute);
+            channelMute,
+            invertedVideo);
     messageQueue->push(cmd);
 }
 
@@ -189,6 +191,8 @@ void ATVMod::modulateSample()
     pullVideo(t);
     calculateLevel(t);
 
+    t = m_running.m_invertedVideo ? 1.0f - t : t;
+
     switch (m_running.m_atvModulation)
     {
     case ATVModulationFM: // FM half bandwidth deviation
@@ -521,6 +525,7 @@ bool ATVMod::handleMessage(const Message& cmd)
         m_config.m_videoPlay = cfg.getVideoPlay();
         m_config.m_cameraPlay = cfg.getCameraPlay();
         m_config.m_channelMute = cfg.getChannelMute();
+        m_config.m_invertedVideo = cfg.getInvertedVideo();
 
         apply();
 
@@ -534,7 +539,8 @@ bool ATVMod::handleMessage(const Message& cmd)
 				<< " m_videoPlayLoop: " << m_config.m_videoPlayLoop
 				<< " m_videoPlay: " << m_config.m_videoPlay
 				<< " m_cameraPlay: " << m_config.m_cameraPlay
-				<< " m_channelMute: " << m_config.m_channelMute;
+				<< " m_channelMute: " << m_config.m_channelMute
+				<< " m_invertedVideo: " << m_config.m_invertedVideo;
 
         return true;
     }
@@ -692,6 +698,7 @@ void ATVMod::apply(bool force)
     m_running.m_videoPlay = m_config.m_videoPlay;
     m_running.m_cameraPlay = m_config.m_cameraPlay;
     m_running.m_channelMute = m_config.m_channelMute;
+    m_running.m_invertedVideo = m_config.m_invertedVideo;
 }
 
 int ATVMod::getSampleRateUnits(ATVStd std)
diff --git a/plugins/channeltx/modatv/atvmod.h b/plugins/channeltx/modatv/atvmod.h
index b368037b9..417fb3a8a 100644
--- a/plugins/channeltx/modatv/atvmod.h
+++ b/plugins/channeltx/modatv/atvmod.h
@@ -316,7 +316,8 @@ public:
 			bool videoPlayLoop,
 			bool videoPlay,
 			bool cameraPLay,
-            bool channelMute);
+            bool channelMute,
+            bool invertedVideo);
 
     virtual void pull(Sample& sample);
     virtual void pullAudio(int nbSamples); // this is used for video signal actually
@@ -355,6 +356,7 @@ private:
         bool getVideoPlay() const { return m_videoPlay; }
         bool getCameraPlay() const { return m_cameraPlay; }
         bool getChannelMute() const { return m_channelMute; }
+        bool getInvertedVideo() const { return m_invertedVideo; }
 
         static MsgConfigureATVMod* create(
             Real rfBandwidth,
@@ -366,7 +368,8 @@ private:
 			bool videoPlayLoop,
 			bool videoPlay,
 			bool cameraPlay,
-			bool channelMute)
+			bool channelMute,
+			bool invertedVideo)
         {
             return new MsgConfigureATVMod(
                     rfBandwidth,
@@ -378,7 +381,8 @@ private:
                     videoPlayLoop,
                     videoPlay,
                     cameraPlay,
-					channelMute);
+					channelMute,
+					invertedVideo);
         }
 
     private:
@@ -392,6 +396,7 @@ private:
         bool          m_videoPlay;
         bool          m_cameraPlay;
         bool          m_channelMute;
+        bool          m_invertedVideo;
 
         MsgConfigureATVMod(
                 Real rfBandwidth,
@@ -403,7 +408,8 @@ private:
 				bool videoPlayLoop,
 				bool videoPlay,
 				bool cameraPlay,
-				bool channelMute) :
+				bool channelMute,
+				bool invertedVideo) :
             Message(),
             m_rfBandwidth(rfBandwidth),
             m_rfOppBandwidth(rfOppBandwidth),
@@ -414,7 +420,8 @@ private:
 			m_videoPlayLoop(videoPlayLoop),
 			m_videoPlay(videoPlay),
 			m_cameraPlay(cameraPlay),
-			m_channelMute(channelMute)
+			m_channelMute(channelMute),
+			m_invertedVideo(invertedVideo)
         { }
     };
 
@@ -460,7 +467,7 @@ private:
         bool          m_videoPlay;            //!< True to play video and false to pause
         bool          m_cameraPlay;           //!< True to play camera video and false to pause
         bool          m_channelMute;          //!< Mute channel baseband output
-        Real          m_vestigialRatio;       //!< Vestigial sideband ratio to half bandwidth
+        bool          m_invertedVideo;        //!< True if video signal is inverted before modulation
 
         Config() :
             m_outputSampleRate(-1),
@@ -475,7 +482,7 @@ private:
 			m_videoPlay(false),
 			m_cameraPlay(false),
 			m_channelMute(false),
-			m_vestigialRatio(0.1f)
+			m_invertedVideo(false)
         { }
     };
 
diff --git a/plugins/channeltx/modatv/atvmodgui.cpp b/plugins/channeltx/modatv/atvmodgui.cpp
index 899a82c3f..4ac246b27 100644
--- a/plugins/channeltx/modatv/atvmodgui.cpp
+++ b/plugins/channeltx/modatv/atvmodgui.cpp
@@ -93,6 +93,7 @@ QByteArray ATVModGUI::serialize() const
 	s.writeU32(6, m_channelMarker.getColor().rgb());
 	s.writeS32(7, ui->rfOppBW->value());
     s.writeS32(8, ui->modulation->currentIndex());
+    s.writeBool(9, ui->invertVideo->isChecked());
 
 	return s.final();
 }
@@ -112,6 +113,7 @@ bool ATVModGUI::deserialize(const QByteArray& data)
 		QByteArray bytetmp;
 		quint32 u32tmp;
 		qint32 tmp;
+		bool booltmp;
 
 		blockApplySettings(true);
 		m_channelMarker.blockSignals(true);
@@ -136,6 +138,8 @@ bool ATVModGUI::deserialize(const QByteArray& data)
         ui->rfOppBW->setValue(tmp);
         d.readS32(8, &tmp, 0);
         ui->modulation->setCurrentIndex(tmp);
+        d.readBool(9, &booltmp, false);
+        ui->invertVideo->setChecked(booltmp);
 
         blockApplySettings(false);
 		m_channelMarker.blockSignals(false);
@@ -354,6 +358,11 @@ void ATVModGUI::on_uniformLevel_valueChanged(int value)
 	applySettings();
 }
 
+void ATVModGUI::on_invertVideo_clicked()
+{
+    applySettings();
+}
+
 void ATVModGUI::on_inputSelect_currentIndexChanged(int index)
 {
     applySettings();
@@ -558,7 +567,8 @@ void ATVModGUI::applySettings()
 			ui->playLoop->isChecked(),
 			ui->playVideo->isChecked(),
 			ui->playCamera->isChecked(),
-			ui->channelMute->isChecked());
+			ui->channelMute->isChecked(),
+			ui->invertVideo->isChecked());
 	}
 }
 
diff --git a/plugins/channeltx/modatv/atvmodgui.h b/plugins/channeltx/modatv/atvmodgui.h
index b1e324929..433a3810f 100644
--- a/plugins/channeltx/modatv/atvmodgui.h
+++ b/plugins/channeltx/modatv/atvmodgui.h
@@ -67,6 +67,7 @@ private slots:
     void on_rfBW_valueChanged(int value);
     void on_rfOppBW_valueChanged(int value);
     void on_standard_currentIndexChanged(int index);
+    void on_invertVideo_clicked();
     void on_uniformLevel_valueChanged(int value);
     void on_inputSelect_currentIndexChanged(int index);
     void on_imageFileDialog_clicked(bool checked);
diff --git a/plugins/channeltx/modatv/atvmodgui.ui b/plugins/channeltx/modatv/atvmodgui.ui
index f123125bf..a3cdbacf6 100644
--- a/plugins/channeltx/modatv/atvmodgui.ui
+++ b/plugins/channeltx/modatv/atvmodgui.ui
@@ -427,6 +427,19 @@
         </item>
        </widget>
       </item>
+      <item>
+       <widget class="QCheckBox" name="invertVideo">
+        <property name="toolTip">
+         <string>Toggle invert video signal</string>
+        </property>
+        <property name="layoutDirection">
+         <enum>Qt::RightToLeft</enum>
+        </property>
+        <property name="text">
+         <string>Inv</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <widget class="QDial" name="uniformLevel">
         <property name="maximumSize">