diff --git a/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui b/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui
index ce8744c5b..078483613 100644
--- a/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui
+++ b/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui
@@ -194,10 +194,10 @@
         <string>Local Oscullator ppm correction</string>
        </property>
        <property name="minimum">
-        <number>-200</number>
+        <number>-300</number>
        </property>
        <property name="maximum">
-        <number>200</number>
+        <number>300</number>
        </property>
        <property name="pageStep">
         <number>1</number>
diff --git a/plugins/samplesource/hackrfinput/hackrfinputgui.ui b/plugins/samplesource/hackrfinput/hackrfinputgui.ui
index ded3969bb..2de384099 100644
--- a/plugins/samplesource/hackrfinput/hackrfinputgui.ui
+++ b/plugins/samplesource/hackrfinput/hackrfinputgui.ui
@@ -196,10 +196,10 @@
         <string>Local Oscullator ppm correction</string>
        </property>
        <property name="minimum">
-        <number>-200</number>
+        <number>-300</number>
        </property>
        <property name="maximum">
-        <number>200</number>
+        <number>300</number>
        </property>
        <property name="pageStep">
         <number>1</number>