diff --git a/plugins/samplesource/xtrxinput/xtrxinputgui.cpp b/plugins/samplesource/xtrxinput/xtrxinputgui.cpp
index 4a30d7e44..1570bc425 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputgui.cpp
+++ b/plugins/samplesource/xtrxinput/xtrxinputgui.cpp
@@ -60,9 +60,6 @@ XTRXInputGUI::XTRXInputGUI(DeviceUISet *deviceUISet, QWidget* parent) :
     ui->lpf->setColorMapper(ColorMapper(ColorMapper::GrayYellow));
     ui->lpf->setValueRange(6, (minF/1000)+1, maxF/1000);
 
-    ui->lpFIR->setColorMapper(ColorMapper(ColorMapper::GrayYellow));
-    ui->lpFIR->setValueRange(5, 1U, 56000U);
-
     ui->ncoFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
 
     ui->channelNumberText->setText(tr("#%1").arg(m_XTRXInput->getChannelIndex()));
@@ -280,9 +277,6 @@ void XTRXInputGUI::displaySettings()
 
     ui->lpf->setValue(m_settings.m_lpfBW / 1000);
 
-    ui->lpFIREnable->setChecked(m_settings.m_lpfFIREnable);
-    ui->lpFIR->setValue(m_settings.m_lpfFIRBW / 1000);
-
     ui->gain->setValue(m_settings.m_gain);
     ui->gainText->setText(tr("%1").arg(m_settings.m_gain));
 
@@ -492,21 +486,6 @@ void XTRXInputGUI::on_lpf_changed(quint64 value)
     sendSettings();
 }
 
-void XTRXInputGUI::on_lpFIREnable_toggled(bool checked)
-{
-    m_settings.m_lpfFIREnable = checked;
-    sendSettings();
-}
-
-void XTRXInputGUI::on_lpFIR_changed(quint64 value)
-{
-    m_settings.m_lpfFIRBW = value * 1000;
-
-    if (m_settings.m_lpfFIREnable) { // do not send the update if the FIR is disabled
-        sendSettings();
-    }
-}
-
 void XTRXInputGUI::on_gainMode_currentIndexChanged(int index)
 {
     m_settings.m_gainMode = (XTRXInputSettings::GainMode) index;
diff --git a/plugins/samplesource/xtrxinput/xtrxinputgui.h b/plugins/samplesource/xtrxinput/xtrxinputgui.h
index 133e119c9..b4bc30d28 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputgui.h
+++ b/plugins/samplesource/xtrxinput/xtrxinputgui.h
@@ -89,8 +89,6 @@ private slots:
     void on_hwDecim_currentIndexChanged(int index);
     void on_swDecim_currentIndexChanged(int index);
     void on_lpf_changed(quint64 value);
-    void on_lpFIREnable_toggled(bool checked);
-    void on_lpFIR_changed(quint64 value);
     void on_gainMode_currentIndexChanged(int index);
     void on_gain_valueChanged(int value);
     void on_lnaGain_valueChanged(int value);
diff --git a/plugins/samplesource/xtrxinput/xtrxinputgui.ui b/plugins/samplesource/xtrxinput/xtrxinputgui.ui
index 416d6f7bd..aa77215d6 100644
--- a/plugins/samplesource/xtrxinput/xtrxinputgui.ui
+++ b/plugins/samplesource/xtrxinput/xtrxinputgui.ui
@@ -142,7 +142,7 @@
        </property>
        <property name="font">
         <font>
-         <family>DejaVu Sans Mono</family>
+         <family>Liberation Mono</family>
          <pointsize>20</pointsize>
          <weight>50</weight>
          <bold>false</bold>
@@ -271,7 +271,7 @@
        </property>
        <property name="font">
         <font>
-         <family>DejaVu Sans Mono</family>
+         <family>Liberation Mono</family>
          <pointsize>12</pointsize>
          <weight>50</weight>
          <bold>false</bold>
@@ -512,7 +512,7 @@
        </property>
        <property name="font">
         <font>
-         <family>DejaVu Sans Mono</family>
+         <family>Liberation Mono</family>
          <pointsize>12</pointsize>
          <weight>50</weight>
          <bold>false</bold>
@@ -573,7 +573,7 @@
        </property>
        <property name="font">
         <font>
-         <family>DejaVu Sans Mono</family>
+         <family>Liberation Mono</family>
          <pointsize>12</pointsize>
          <weight>50</weight>
          <bold>false</bold>
@@ -595,48 +595,79 @@
       </widget>
      </item>
      <item>
-      <widget class="ButtonSwitch" name="lpFIREnable">
-       <property name="toolTip">
-        <string>Enable or disable TSP digital FIR lowpass filters</string>
+      <spacer name="horizontalSpacer_6">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
        </property>
-       <property name="text">
-        <string>FIR</string>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="ValueDial" name="lpFIR" native="true">
-       <property name="sizePolicy">
-        <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
-         <horstretch>0</horstretch>
-         <verstretch>0</verstretch>
-        </sizepolicy>
-       </property>
-       <property name="minimumSize">
+       <property name="sizeHint" stdset="0">
         <size>
-         <width>32</width>
-         <height>16</height>
+         <width>40</width>
+         <height>20</height>
         </size>
        </property>
-       <property name="font">
-        <font>
-         <family>DejaVu Sans Mono</family>
-         <pointsize>12</pointsize>
-        </font>
-       </property>
-       <property name="cursor">
-        <cursorShape>PointingHandCursor</cursorShape>
-       </property>
-       <property name="toolTip">
-        <string>Digital FIR lowpass filers bandwidth (kHz)</string>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="pwrmodeLabel">
+       <property name="text">
+        <string>LMS Pwr</string>
        </property>
       </widget>
      </item>
      <item>
-      <widget class="QLabel" name="lpFIRUnits">
-       <property name="text">
-        <string>kHz</string>
+      <widget class="QComboBox" name="pwrmode">
+       <property name="minimumSize">
+        <size>
+         <width>50</width>
+         <height>0</height>
+        </size>
        </property>
+       <property name="toolTip">
+        <string>Power mode</string>
+       </property>
+       <property name="currentIndex">
+        <number>4</number>
+       </property>
+       <item>
+        <property name="text">
+         <string>0 - Save Max</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>1</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>2</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>3 - Economy</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>4 - Optimal</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>5</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>6</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>7 - Perf Max</string>
+        </property>
+       </item>
       </widget>
      </item>
     </layout>
@@ -917,89 +948,6 @@
      </item>
     </layout>
    </item>
-   <item>
-    <layout class="QHBoxLayout" name="pwrLayout">
-     <property name="topMargin">
-      <number>6</number>
-     </property>
-     <item>
-      <widget class="QLabel" name="pwrmodeLabel">
-       <property name="text">
-        <string>Pwr mode</string>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QComboBox" name="pwrmode">
-       <property name="minimumSize">
-        <size>
-         <width>50</width>
-         <height>0</height>
-        </size>
-       </property>
-       <property name="toolTip">
-        <string>Power mode</string>
-       </property>
-       <property name="currentIndex">
-        <number>4</number>
-       </property>
-       <item>
-        <property name="text">
-         <string>0 - Save Max</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>1</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>2</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>3 - Economy</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>4 - Optimal</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>5</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>6</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>7 - Perf Max</string>
-        </property>
-       </item>
-      </widget>
-     </item>
-     <item>
-      <spacer name="horizontalSpacer">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>40</width>
-         <height>20</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
-    </layout>
-   </item>
    <item>
     <widget class="Line" name="line">
      <property name="orientation">