diff --git a/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui b/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui
index 00dac0b9d..233c8c532 100644
--- a/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui
+++ b/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui
@@ -398,6 +398,41 @@
        </item>
       </widget>
      </item>
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Fc</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="comboBox">
+       <property name="maximumSize">
+        <size>
+         <width>55</width>
+         <height>16777215</height>
+        </size>
+       </property>
+       <property name="toolTip">
+        <string>Relative position of device center frequency</string>
+       </property>
+       <item>
+        <property name="text">
+         <string>Inf</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Sup</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Cen</string>
+        </property>
+       </item>
+      </widget>
+     </item>
      <item>
       <spacer name="horizontalSpacer_4">
        <property name="orientation">