diff --git a/nrsc5-dui.py b/nrsc5-dui.py
index c8c4c05..f9da4ef 100644
--- a/nrsc5-dui.py
+++ b/nrsc5-dui.py
@@ -610,7 +610,7 @@ class NRSC5_DUI(object):
             
             # set gain if auto gain is not selected
             if (not self.cbAutoGain.get_active()):
-                self.streamInfo["Gain"] = self.spinGain.get_value()
+                self.streamInfo["Gain"] = round(self.spinGain.get_value(),2)
                 self.nrsc5Args.append("-g")
                 self.nrsc5Args.append(str(self.streamInfo["Gain"]))
             
@@ -1119,7 +1119,7 @@ class NRSC5_DUI(object):
 
                 if (self.cbAutoGain.get_active()):
                     self.spinGain.set_value(self.streamInfo["Gain"])
-                    self.lblGain.set_label("{:2.1f}dB".format(self.streamInfo["Gain"]))
+                    self.lblGain.set_label("{:2.2f}dB".format(self.streamInfo["Gain"]))
                 
                 # second param is lot id, if -1, show cover, otherwise show cover
                 # technically we should show the file with the matching lot id
diff --git a/res/mainForm.glade b/res/mainForm.glade
index 1d0aeeb..3c12dde 100644
--- a/res/mainForm.glade
+++ b/res/mainForm.glade
@@ -10,8 +10,9 @@
     <property name="page_increment">1</property>
   </object>
   <object class="GtkAdjustment" id="adjGain">
+    <property name="lower">0.00</property>
     <property name="upper">49.60</property>
-    <property name="step_increment">0.10</property>
+    <property name="step_increment">0.01</property>
     <property name="page_increment">1</property>
   </object>
   <object class="GtkAdjustment" id="adjPPM">
@@ -1430,7 +1431,7 @@
                             <property name="primary_icon_activatable">False</property>
                             <property name="secondary_icon_activatable">False</property>
                             <property name="adjustment">adjGain</property>
-                            <property name="digits">1</property>
+                            <property name="digits">2</property>
                             <property name="snap_to_ticks">True</property>
                             <property name="numeric">True</property>
                           </object>