diff --git a/plugins/samplesource/xtrxinput/xtrxinput.cpp b/plugins/samplesource/xtrxinput/xtrxinput.cpp
index 5b276891d..91354c79c 100644
--- a/plugins/samplesource/xtrxinput/xtrxinput.cpp
+++ b/plugins/samplesource/xtrxinput/xtrxinput.cpp
@@ -1114,8 +1114,6 @@ bool XTRXInput::applySettings(const XTRXInputSettings& settings, bool force, boo
              << " sample rate with soft decimation: " << m_settings.m_devSampleRate/(1<<m_settings.m_log2SoftDecim) << "S/s"
              << " m_gain: " << m_settings.m_gain
              << " m_lpfBW: " << m_settings.m_lpfBW
-             << " m_lpfFIRBW: " << m_settings.m_lpfFIRBW
-             << " m_lpfFIREnable: " << m_settings.m_lpfFIREnable
              << " m_ncoEnable: " << m_settings.m_ncoEnable
              << " m_ncoFrequency: " << m_settings.m_ncoFrequency
              << " m_antennaPath: " << m_settings.m_antennaPath
diff --git a/plugins/samplesource/xtrxinput/xtrxinputsettings.cpp b/plugins/samplesource/xtrxinput/xtrxinputsettings.cpp
index e2970da6a..69bb0fc58 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputsettings.cpp
+++ b/plugins/samplesource/xtrxinput/xtrxinputsettings.cpp
@@ -31,8 +31,6 @@ void XTRXInputSettings::resetToDefaults()
     m_iqCorrection = false;
     m_log2SoftDecim = 0;
     m_lpfBW = 4.5e6f;
-    m_lpfFIREnable = false;
-    m_lpfFIRBW = 2.5e6f;
     m_gain = 50;
     m_ncoEnable = false;
     m_ncoFrequency = 0;
@@ -56,8 +54,6 @@ QByteArray XTRXInputSettings::serialize() const
     s.writeBool(4, m_iqCorrection);
     s.writeU32(5, m_log2SoftDecim);
     s.writeFloat(7, m_lpfBW);
-    s.writeBool(8, m_lpfFIREnable);
-    s.writeFloat(9, m_lpfFIRBW);
     s.writeU32(10, m_gain);
     s.writeBool(11, m_ncoEnable);
     s.writeS32(12, m_ncoFrequency);
@@ -93,8 +89,6 @@ bool XTRXInputSettings::deserialize(const QByteArray& data)
         d.readBool(4, &m_iqCorrection, false);
         d.readU32(5, &m_log2SoftDecim, 0);
         d.readFloat(7, &m_lpfBW, 1.5e6);
-        d.readBool(8, &m_lpfFIREnable, false);
-        d.readFloat(9, &m_lpfFIRBW, 1.5e6);
         d.readU32(10, &m_gain, 50);
         d.readBool(11, &m_ncoEnable, false);
         d.readS32(12, &m_ncoFrequency, 0);
diff --git a/plugins/samplesource/xtrxinput/xtrxinputsettings.h b/plugins/samplesource/xtrxinput/xtrxinputsettings.h
index 9d3cc304d..126f3a740 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputsettings.h
+++ b/plugins/samplesource/xtrxinput/xtrxinputsettings.h
@@ -28,12 +28,6 @@
  */
 struct XTRXInputSettings
 {
-    typedef enum {
-        FC_POS_INFRA = 0,
-        FC_POS_SUPRA,
-        FC_POS_CENTER
-    } fcPos_t;
-
     typedef enum {
         GAIN_AUTO,
         GAIN_MANUAL
@@ -48,8 +42,6 @@ struct XTRXInputSettings
     bool     m_iqCorrection;
     uint32_t m_log2SoftDecim;
     float    m_lpfBW;        //!< LMS amalog lowpass filter bandwidth (Hz)
-    bool     m_lpfFIREnable; //!< Enable LMS digital lowpass FIR filters
-    float    m_lpfFIRBW;     //!< LMS digital lowpass FIR filters bandwidth (Hz)
     uint32_t m_gain;         //!< Optimally distributed gain (dB)
     bool     m_ncoEnable;    //!< Enable TSP NCO and mixing
     int      m_ncoFrequency; //!< Actual NCO frequency (the resulting frequency with mixing is displayed)
diff --git a/plugins/samplesource/xtrxinput/xtrxinputthread.cpp b/plugins/samplesource/xtrxinput/xtrxinputthread.cpp
index 38277485d..96865c48d 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputthread.cpp
+++ b/plugins/samplesource/xtrxinput/xtrxinputthread.cpp
@@ -28,7 +28,6 @@ XTRXInputThread::XTRXInputThread(DeviceXTRXShared* shared,
     m_convertBuffer(XTRX_BLOCKSIZE),
     m_sampleFifo(sampleFifo),
     m_log2Decim(0),
-    m_fcPos(XTRXInputSettings::FC_POS_CENTER),
     m_shared(shared)
 {
 }
@@ -69,11 +68,6 @@ void XTRXInputThread::setLog2Decimation(unsigned int log2_decim)
     m_log2Decim = log2_decim;
 }
 
-void XTRXInputThread::setFcPos(int fcPos)
-{
-    m_fcPos = fcPos;
-}
-
 void XTRXInputThread::run()
 {
     int res;
@@ -157,83 +151,28 @@ void XTRXInputThread::callback(const qint16* buf, qint32 len)
     }
     else
     {
-        if (m_fcPos == 0) // Infra
+        switch (m_log2Decim)
         {
-            switch (m_log2Decim)
-            {
-            case 1:
-                m_decimators.decimate2_inf(&it, buf, len);
-                break;
-            case 2:
-                m_decimators.decimate4_inf(&it, buf, len);
-                break;
-            case 3:
-                m_decimators.decimate8_inf(&it, buf, len);
-                break;
-            case 4:
-                m_decimators.decimate16_inf(&it, buf, len);
-                break;
-            case 5:
-                m_decimators.decimate32_inf(&it, buf, len);
-                break;
-            case 6:
-                m_decimators.decimate64_inf(&it, buf, len);
-                break;
-            default:
-                break;
-            }
-        }
-        else if (m_fcPos == 1) // Supra
-        {
-            switch (m_log2Decim)
-            {
-            case 1:
-                m_decimators.decimate2_sup(&it, buf, len);
-                break;
-            case 2:
-                m_decimators.decimate4_sup(&it, buf, len);
-                break;
-            case 3:
-                m_decimators.decimate8_sup(&it, buf, len);
-                break;
-            case 4:
-                m_decimators.decimate16_sup(&it, buf, len);
-                break;
-            case 5:
-                m_decimators.decimate32_sup(&it, buf, len);
-                break;
-            case 6:
-                m_decimators.decimate64_sup(&it, buf, len);
-                break;
-            default:
-                break;
-            }
-        }
-        else if (m_fcPos == 2) // Center
-        {
-            switch (m_log2Decim)
-            {
-            case 1:
-                m_decimators.decimate2_cen(&it, buf, len);
-                break;
-            case 2:
-                m_decimators.decimate4_cen(&it, buf, len);
-                break;
-            case 3:
-                m_decimators.decimate8_cen(&it, buf, len);
-                break;
-            case 4:
-                m_decimators.decimate16_cen(&it, buf, len);
-                break;
-            case 5:
-                m_decimators.decimate32_cen(&it, buf, len);
-                break;
-            case 6:
-                m_decimators.decimate64_cen(&it, buf, len);
-                break;
-            default:
-                break;
-            }
+        case 1:
+            m_decimators.decimate2_cen(&it, buf, len);
+            break;
+        case 2:
+            m_decimators.decimate4_cen(&it, buf, len);
+            break;
+        case 3:
+            m_decimators.decimate8_cen(&it, buf, len);
+            break;
+        case 4:
+            m_decimators.decimate16_cen(&it, buf, len);
+            break;
+        case 5:
+            m_decimators.decimate32_cen(&it, buf, len);
+            break;
+        case 6:
+            m_decimators.decimate64_cen(&it, buf, len);
+            break;
+        default:
+            break;
         }
     }
 
diff --git a/plugins/samplesource/xtrxinput/xtrxinputthread.h b/plugins/samplesource/xtrxinput/xtrxinputthread.h
index 0a6356a87..a119e5b92 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputthread.h
+++ b/plugins/samplesource/xtrxinput/xtrxinputthread.h
@@ -43,7 +43,6 @@ public:
     virtual void setDeviceSampleRate(int sampleRate __attribute__((unused))) {}
     virtual bool isRunning() { return m_running; }
     void setLog2Decimation(unsigned int log2_decim);
-    void setFcPos(int fcPos);
 
 private:
     QMutex m_startWaitMutex;
@@ -55,7 +54,6 @@ private:
     SampleSinkFifo* m_sampleFifo;
 
     unsigned int m_log2Decim; // soft decimation
-    int m_fcPos;
 
     Decimators<qint32, qint16, SDR_RX_SAMP_SZ, 12> m_decimators;