diff --git a/ArduCopter/tuning.cpp b/ArduCopter/tuning.cpp
index 2b3ca930ca..8a6b162b50 100644
--- a/ArduCopter/tuning.cpp
+++ b/ArduCopter/tuning.cpp
@@ -16,8 +16,11 @@ void Copter::tuning() {
         return;
     }
 
-    float tuning_value = (float)g.rc_6.control_in / 1000.0f;
+    // set tuning range and then get new value
     g.rc_6.set_range(g.radio_tuning_low,g.radio_tuning_high);
+    float tuning_value = (float)g.rc_6.control_in / 1000.0f;
+    // Tuning Value should never be outside the bounds of the specified low and high value
+    tuning_value = constrain_float(tuning_value, g.radio_tuning_low/1000.0f, g.radio_tuning_high/1000.0f);
 
     Log_Write_Parameter_Tuning(g.radio_tuning, tuning_value, g.rc_6.control_in, g.radio_tuning_low, g.radio_tuning_high);