diff --git a/FSW-qt/fsw-qt.pro b/FSW-qt/fsw-qt.pro
--- a/FSW-qt/fsw-qt.pro
+++ b/FSW-qt/fsw-qt.pro
@@ -12,7 +12,7 @@ SWVERSION=-1-0
 DEFINES += SW_VERSION_N1=3 # major
 DEFINES += SW_VERSION_N2=0 # minor
 DEFINES += SW_VERSION_N3=0 # patch
-DEFINES += SW_VERSION_N4=8 # internal
+DEFINES += SW_VERSION_N4=9 # internal
 
 # <GCOV>
 #QMAKE_CFLAGS_RELEASE += -fprofile-arcs -ftest-coverage
diff --git a/src/tc_handler.c b/src/tc_handler.c
--- a/src/tc_handler.c
+++ b/src/tc_handler.c
@@ -897,7 +897,7 @@ void setCalibrationData( void ){
     f1 = 10000;
     fs = 160256.410;
     Ts = 1. / fs;
-    scaleFactor = 0.125 / 0.000654; // 191, 500 mVpp, 2 sinus waves => 250 mVpp each, amplitude = 125 mV
+    scaleFactor = 0.250 / 0.000654; // 191, 500 mVpp, 2 sinus waves => 500 mVpp each, amplitude = 250 mV
 
     time_management_regs->calDataPtr = 0x00;