diff --git a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.cpp b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.cpp
index 6f1b2cb..566bc01 100644
--- a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.cpp
+++ b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.cpp
@@ -505,6 +505,7 @@ ManualControlDialogVFD::~ManualControlDialogVFD()
     for(auto c : commands) {
         emit dev.removeSCPICommand(c);
     }
+    dev.setIdle();
     emit dev.releaseControl();
     delete ui;
 }
diff --git a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.ui b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.ui
index 8468bd1..801a0c8 100644
--- a/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.ui
+++ b/Software/PC_Application/LibreVNA-GUI/Device/LibreVNA/manualcontroldialogvfd.ui
@@ -52,6 +52,9 @@
          </item>
          <item row="5" column="1">
           <widget class="QComboBox" name="SourceFilter">
+           <property name="currentIndex">
+            <number>9</number>
+           </property>
            <item>
             <property name="text">
              <string>81 MHz</string>
@@ -541,6 +544,9 @@
              <property name="maximum">
               <number>63</number>
              </property>
+             <property name="value">
+              <number>63</number>
+             </property>
             </widget>
            </item>
            <item row="3" column="1">
@@ -548,6 +554,9 @@
              <property name="maximum">
               <number>63</number>
              </property>
+             <property name="value">
+              <number>63</number>
+             </property>
             </widget>
            </item>
            <item row="4" column="1">
@@ -555,6 +564,9 @@
              <property name="maximum">
               <number>63</number>
              </property>
+             <property name="value">
+              <number>63</number>
+             </property>
             </widget>
            </item>
            <item row="5" column="1">
@@ -562,6 +574,9 @@
              <property name="maximum">
               <number>63</number>
              </property>
+             <property name="value">
+              <number>63</number>
+             </property>
             </widget>
            </item>
           </layout>