diff --git a/script/RFscan/ShottkyScan.py b/script/RFscan/ShottkyScan.py
index d92f82c..a9cdcd6 100644
--- a/script/RFscan/ShottkyScan.py
+++ b/script/RFscan/ShottkyScan.py
@@ -1,8 +1,8 @@
 import  ch.psi.pshell.epics.ControlledVariable as ControlledVariable
 
 if get_exec_pars().source == CommandSource.ui:
-    start   = 0.0
-    stop    = 360.0
+    start   = 50.0
+    stop    = 230.0
     step    = 5.0
     nb      = 1
     lat     = 0.100