diff --git a/plugins/channelrx/chanalyzerng/chanalyzerng.cpp b/plugins/channelrx/chanalyzerng/chanalyzerng.cpp
index 95c2cfcaa..0cb8a928e 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzerng.cpp
+++ b/plugins/channelrx/chanalyzerng/chanalyzerng.cpp
@@ -148,8 +148,7 @@ void ChannelAnalyzerNG::processOneSample(Complex& c, fftfilt::cmplx *sideband)
             Real re = m_sum.real() / SDR_RX_SCALED;
             Real im = m_sum.imag() / SDR_RX_SCALED;
             m_magsq = re*re + im*im;
-            Real mixI = 1.0f;
-            Real mixQ = 0.0f;
+            std::complex<float> mix;
 
             if (m_settings.m_pll)
             {
@@ -157,40 +156,17 @@ void ChannelAnalyzerNG::processOneSample(Complex& c, fftfilt::cmplx *sideband)
                 {
                     m_fll.feed(re, im);
                     // Use -fPLL to mix (exchange PLL real and image in the complex multiplication)
-                    mixI = m_sum.real() * m_fll.getImag() - m_sum.imag() * m_fll.getReal();
-                    mixQ = m_sum.real() * m_fll.getReal() + m_sum.imag() * m_fll.getImag();
-//                        mixI = m_fll.getReal() * SDR_RX_SCALED;
-//                        mixQ = m_fll.getImag() * SDR_RX_SCALED;
+                    mix = m_sum * std::conj(m_fll.getComplex());
                 }
                 else
                 {
                     m_pll.feed(re, im);
                     // Use -fPLL to mix (exchange PLL real and image in the complex multiplication)
-                    mixI = m_sum.real() * m_pll.getImag() - m_sum.imag() * m_pll.getReal();
-                    mixQ = m_sum.real() * m_pll.getReal() + m_sum.imag() * m_pll.getImag();
-                }
-
-                if (m_settings.m_ssb & !m_usb)
-                { // invert spectrum for LSB
-                    m_sampleBuffer.push_back(Sample(mixQ, mixI));
-                }
-                else
-                {
-                    m_sampleBuffer.push_back(Sample(mixI, mixQ));
-                }
-            }
-            else
-            {
-                if (m_settings.m_ssb & !m_usb)
-                { // invert spectrum for LSB
-                    m_sampleBuffer.push_back(Sample(m_sum.imag(), m_sum.real()));
-                }
-                else
-                {
-                    m_sampleBuffer.push_back(Sample(m_sum.real(), m_sum.imag()));
+                    mix = m_sum * std::conj(m_pll.getComplex());
                 }
             }
 
+            feedOneSample(m_settings.m_pll ? mix : m_sum, m_settings.m_fll ? m_fll.getComplex() : m_pll.getComplex());
             m_sum = 0;
         }
     }
diff --git a/plugins/channelrx/chanalyzerng/chanalyzerng.h b/plugins/channelrx/chanalyzerng/chanalyzerng.h
index 8b326bdd1..f4afa6bda 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzerng.h
+++ b/plugins/channelrx/chanalyzerng/chanalyzerng.h
@@ -240,6 +240,32 @@ private:
 	void applySettings(const ChannelAnalyzerNGSettings& settings, bool force = false);
 	void setFilters(int sampleRate, float bandwidth, float lowCutoff);
 	void processOneSample(Complex& c, fftfilt::cmplx *sideband);
+
+	inline void feedOneSample(const fftfilt::cmplx& s, const fftfilt::cmplx& pll)
+	{
+	    switch (m_settings.m_inputType)
+	    {
+	        case ChannelAnalyzerNGSettings::InputPLL:
+            {
+                if (m_settings.m_ssb & !m_usb) { // invert spectrum for LSB
+                    m_sampleBuffer.push_back(Sample(pll.imag(), pll.real()));
+                } else {
+                    m_sampleBuffer.push_back(Sample(pll.real(), pll.imag()));
+                }
+            }
+	            break;
+            case ChannelAnalyzerNGSettings::InputSignal:
+            default:
+            {
+                if (m_settings.m_ssb & !m_usb) { // invert spectrum for LSB
+                    m_sampleBuffer.push_back(Sample(s.imag(), s.real()));
+                } else {
+                    m_sampleBuffer.push_back(Sample(s.real(), s.imag()));
+                }
+            }
+                break;
+	    }
+	}
 };
 
 #endif // INCLUDE_CHANALYZERNG_H
diff --git a/plugins/channelrx/chanalyzerng/chanalyzerngsettings.cpp b/plugins/channelrx/chanalyzerng/chanalyzerngsettings.cpp
index c282220f1..0cf60f4d1 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzerngsettings.cpp
+++ b/plugins/channelrx/chanalyzerng/chanalyzerngsettings.cpp
@@ -41,6 +41,7 @@ void ChannelAnalyzerNGSettings::resetToDefaults()
     m_pll = false;
     m_fll = false;
     m_pllPskOrder = 1;
+    m_inputType = InputSignal;
     m_rgbColor = QColor(128, 128, 128).rgb();
 }
 
@@ -61,6 +62,7 @@ QByteArray ChannelAnalyzerNGSettings::serialize() const
     s.writeBool(11, m_pll);
     s.writeBool(12, m_fll);
     s.writeU32(13, m_pllPskOrder);
+    s.writeS32(14, (int) m_inputType);
 
     return s.final();
 }
@@ -78,6 +80,7 @@ bool ChannelAnalyzerNGSettings::deserialize(const QByteArray& data)
     if(d.getVersion() == 1)
     {
         QByteArray bytetmp;
+        int tmp;
 
         d.readS32(1, &m_frequency, 0);
         d.readS32(2, &m_bandwidth, 5000);
@@ -102,6 +105,8 @@ bool ChannelAnalyzerNGSettings::deserialize(const QByteArray& data)
         d.readBool(11, &m_pll, false);
         d.readBool(12, &m_fll, false);
         d.readU32(13, &m_pllPskOrder, 1);
+        d.readS32(14, &tmp, 0);
+        m_inputType = (InputType) tmp;
 
         return true;
     }
diff --git a/plugins/channelrx/chanalyzerng/chanalyzerngsettings.h b/plugins/channelrx/chanalyzerng/chanalyzerngsettings.h
index a030ba943..55a9ff42d 100644
--- a/plugins/channelrx/chanalyzerng/chanalyzerngsettings.h
+++ b/plugins/channelrx/chanalyzerng/chanalyzerngsettings.h
@@ -23,6 +23,13 @@ class Serializable;
 
 struct ChannelAnalyzerNGSettings
 {
+    enum InputType
+    {
+        InputSignal,
+        InputPLL,
+        InputAutoCorr
+    };
+
     int m_frequency;
     bool m_downSample;
     quint32 m_downSampleRate;
@@ -33,6 +40,7 @@ struct ChannelAnalyzerNGSettings
     bool m_pll;
     bool m_fll;
     unsigned int m_pllPskOrder;
+    InputType m_inputType;
     quint32 m_rgbColor;
     QString m_title;
     Serializable *m_channelMarker;