diff --git a/src/Anritsu_MS2830A.py b/src/Anritsu_MS2830A.py
index 19004ab24327e3e8837d0319e890f0e1f2e54ca8..9187151f74149268ecada334d7446b328d38883c 100644
--- a/src/Anritsu_MS2830A.py
+++ b/src/Anritsu_MS2830A.py
@@ -141,7 +141,7 @@ class Anritsu_MS2830A():
         """
         sets the center frequency
         """
-        self._visainstrument.write('CNF %i' % (centerfreq))
+        self._visainstrument.write('CNF %e' % (centerfreq))
 
     def do_get_centerfreq(self):
         """
@@ -167,7 +167,7 @@ class Anritsu_MS2830A():
         sets the start frequency
         
         """
-        self._visainstrument.write('STF %i'%(freq))
+        self._visainstrument.write('STF %e'%(freq))
 
     def do_get_startfreq(self):
         """
@@ -181,7 +181,7 @@ class Anritsu_MS2830A():
         sets the stop frequency
         
         """
-        self._visainstrument.write('SOF %i'%(freq))
+        self._visainstrument.write('SOF %e'%(freq))
 
     def do_get_stopfreq(self):
         """
diff --git a/src/Utils.py b/src/Utils.py
index ae5d519caf8a6d8efc3948cb0883f6c0b22a082b..496b34cbeb18e8847900d32858ce0a9bec1c01f6 100644
--- a/src/Utils.py
+++ b/src/Utils.py
@@ -27,7 +27,7 @@ def set_SPA_for_measure(ms2830a, config_file, manual_command):
 
         log_list.append("Start Frequency: " + str(ms2830a.do_get_startfreq()))
         log_list.append("Stop Frequency: " + str(ms2830a.do_get_stopfreq()))
-        log_list.append("Center Frequency: " + str(ms2830a.do_get_centerfreq()))
+        #log_list.append("Center Frequency: " + str(ms2830a.do_get_centerfreq()))
         
         # Time sweep
         ms2830a.set_trace_points_sweeptime(config_file["sweep_trace_points"])