diff --git a/mainwindow.cpp b/mainwindow.cpp
index aa422694e..9a3fc4f14 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1491,7 +1491,7 @@ void MainWindow::guiUpdate()
       gen65_(message,&mode65,&samfac,&nsendingsh,msgsent,iwave,
              &nwave,len1,len1);
     } else {
-      if(m_modeQ65==5) ntxFreq=600;
+      if(m_modeQ65==5) ntxFreq=700;
       genqra64a_(message,&ichk,&ntxFreq,&m_modeQ65,&itype,msgsent,iwave,
                  &nwave,len1,len1);
     }
diff --git a/widegraph.h b/widegraph.h
index 1300f79f1..e7fbee4f9 100644
--- a/widegraph.h
+++ b/widegraph.h
@@ -79,7 +79,7 @@ private:
   qint32 m_fCal;
   qint32 m_fSample;
   qint32 m_mode65;
-  qint32 m_TRperiod;
+  qint32 m_TRperiod=60;
 
   Ui::WideGraph *ui;
 };