diff --git a/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui b/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui
index 72924fe1d..047ffcee0 100644
--- a/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui
+++ b/plugins/samplesink/hackrfoutput/hackrfoutputgui.ui
@@ -200,10 +200,10 @@
         <string>Local Oscillator ppm correction</string>
        </property>
        <property name="minimum">
-        <number>-300</number>
+        <number>-1000</number>
        </property>
        <property name="maximum">
-        <number>300</number>
+        <number>1000</number>
        </property>
        <property name="pageStep">
         <number>1</number>
@@ -546,17 +546,17 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>ButtonSwitch</class>
+   <extends>QToolButton</extends>
+   <header>gui/buttonswitch.h</header>
+  </customwidget>
   <customwidget>
    <class>ValueDial</class>
    <extends>QWidget</extends>
    <header>gui/valuedial.h</header>
    <container>1</container>
   </customwidget>
-  <customwidget>
-   <class>ButtonSwitch</class>
-   <extends>QToolButton</extends>
-   <header>gui/buttonswitch.h</header>
-  </customwidget>
   <customwidget>
    <class>TransverterButton</class>
    <extends>QPushButton</extends>
diff --git a/plugins/samplesink/hackrfoutput/readme.md b/plugins/samplesink/hackrfoutput/readme.md
index aef1db066..d6edbec08 100644
--- a/plugins/samplesink/hackrfoutput/readme.md
+++ b/plugins/samplesink/hackrfoutput/readme.md
@@ -38,7 +38,7 @@ This is the center frequency of transmission in kHz.
 
 <h3>4: Local Oscillator correction</h3>
 
-Use this slider to adjust LO correction in ppm. It can be varied from -10.0 to 10.0 in 0.1 steps and is applied in software.
+Use this slider to adjust LO correction in ppm. It can be varied from -100.0 to 100.0 in 0.1 steps and is applied in software.
 
 <h3>5: Rx filter bandwidth</h3>
 
diff --git a/plugins/samplesource/hackrfinput/hackrfinputgui.ui b/plugins/samplesource/hackrfinput/hackrfinputgui.ui
index 691547490..3889a4758 100644
--- a/plugins/samplesource/hackrfinput/hackrfinputgui.ui
+++ b/plugins/samplesource/hackrfinput/hackrfinputgui.ui
@@ -191,10 +191,10 @@
         <string>Local Oscillator ppm correction</string>
        </property>
        <property name="minimum">
-        <number>-300</number>
+        <number>-1000</number>
        </property>
        <property name="maximum">
-        <number>300</number>
+        <number>1000</number>
        </property>
        <property name="pageStep">
         <number>1</number>
@@ -667,17 +667,17 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>ButtonSwitch</class>
+   <extends>QToolButton</extends>
+   <header>gui/buttonswitch.h</header>
+  </customwidget>
   <customwidget>
    <class>ValueDial</class>
    <extends>QWidget</extends>
    <header>gui/valuedial.h</header>
    <container>1</container>
   </customwidget>
-  <customwidget>
-   <class>ButtonSwitch</class>
-   <extends>QToolButton</extends>
-   <header>gui/buttonswitch.h</header>
-  </customwidget>
   <customwidget>
    <class>TransverterButton</class>
    <extends>QPushButton</extends>
diff --git a/plugins/samplesource/hackrfinput/readme.md b/plugins/samplesource/hackrfinput/readme.md
index 94c024334..4d5423c72 100644
--- a/plugins/samplesource/hackrfinput/readme.md
+++ b/plugins/samplesource/hackrfinput/readme.md
@@ -38,7 +38,7 @@ In baseband sample rate input mode (6A) this is the device to host sample rate i
 
 <h3>2: Local Oscillator correction</h3>
 
-Use this slider to adjust LO correction in ppm. It can be varied from -10.0 to 10.0 in 0.1 steps and is applied in software.
+Use this slider to adjust LO correction in ppm. It can be varied from -100.0 to 100.0 in 0.1 steps and is applied in software.
 
 <h3>3: Auto correction options</h3>