diff --git a/widegraph.ui b/widegraph.ui
index a9342a1..ae430a4 100644
--- a/widegraph.ui
+++ b/widegraph.ui
@@ -568,6 +568,9 @@
       </item>
       <item row="0" column="5">
        <widget class="QCheckBox" name="filterCheckBox">
+        <property name="toolTip">
+         <string>Enable the software filter</string>
+        </property>
         <property name="text">
          <string>Enable Filter</string>
         </property>
@@ -578,6 +581,9 @@
         <property name="enabled">
          <bool>false</bool>
         </property>
+        <property name="toolTip">
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Set the software filter width in Hz. This filter prevents signals outside the filter range from being processed by the decoder.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        </property>
         <property name="specialValueText">
          <string/>
         </property>