diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index 551e21f..92a41bb 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -4,7 +4,7 @@ import  ch.psi.pshell.epics.Camtool as Camtool
 if get_exec_pars().source == CommandSource.ui:
     start   = 0.0
     stop    = 180.0
-    step    = 30.0
+    step    = 5.0
     nb      = 2
     lat     = 0.100
 else: