diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index 5990dad..860d798 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -2,10 +2,10 @@ import ch.psi.pshell.epics.ControlledVariable as ControlledVariable
 import ch.psi.pshell.epics.Camtool as Camtool
 
 if get_exec_pars().source == CommandSource.ui:
-    start   = 30.0
-    stop    = 70.0
-    step    = 2.0
-    nb      = 1
+    start   = 35.0
+    stop    = 55.0
+    step    = 1.0
+    nb      = 3
     lat     = 0.3
     disp    = -0.32
     energy0 = 7.1