diff --git a/CMakeLists.txt b/CMakeLists.txt
index 385e7ebbb..00a9d1f10 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -101,7 +101,8 @@ elseif (CMAKE_HOST_WIN32)
   add_definitions (-DWIN32)
 endif ()
 
-set_property (DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELEASE QT_NO_DEBUG_OUTPUT QT_NO_WARNING_OUTPUT)
+#set_property (DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELEASE QT_NO_DEBUG_OUTPUT QT_NO_WARNING_OUTPUT)
+set_property (DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELEASE QT_NO_WARNING_OUTPUT)
 
 # build the subdirectories
 add_subdirectory (libm65)
diff --git a/libm65/qra64b.f90 b/libm65/qra64b.f90
index a2e4588bc..7681076b9 100644
--- a/libm65/qra64b.f90
+++ b/libm65/qra64b.f90
@@ -9,7 +9,8 @@ subroutine qra64b(nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,hiscall_12,   &
   character*12 mycall_12,hiscall_12
   character*6 hisgrid_6
   common/cacb/ca,cb
-  
+
+  open(17,file='red.dat',status='unknown')
   df=96000.0/NFFT1
   k0=(ikhz-75.74)*1000.0/df
   nh=nfft2/2
@@ -28,6 +29,7 @@ subroutine qra64b(nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,hiscall_12,   &
 !  write(67) nutc,cx,cy
   call qra64c(cx,cy,nutc,nqd,ikhz,mousedf,ntol,xplo,mycall_12,    &
        hiscall_12,hisgrid_6)
-
+  close(17)
+  
   return
 end subroutine qra64b
diff --git a/libm65/sync64.f90 b/libm65/sync64.f90
index dc07dcad6..a56bd1594 100644
--- a/libm65/sync64.f90
+++ b/libm65/sync64.f90
@@ -87,7 +87,6 @@ subroutine sync64(c0,nf1,nf2,nfqso,ntol,mode64,emedelay,dtx,f0,jpk,sync,  &
      s3=0.
      s0b=0.
      do i=ia,ib
-        freq=i*df3
         s1(i)=real(c1(i))**2 + aimag(c1(i))**2
         s2(i)=real(c2(i))**2 + aimag(c2(i))**2
         s3(i)=real(c3(i))**2 + aimag(c3(i))**2
@@ -119,10 +118,6 @@ subroutine sync64(c0,nf1,nf2,nfqso,ntol,mode64,emedelay,dtx,f0,jpk,sync,  &
      call timer('sync64_2',1)
   enddo
 
-!  s0a=s0a+2.0
-!  write(17) ia,ib,s0a(ia:ib)                !Save data for red curve
-!  close(17)
-
   nskip=50
   call lorentzian(s0a(ia+nskip:ib-nskip),iz-2*nskip,a)
   f0a=(a(3)+ia+49)*df3
@@ -140,8 +135,10 @@ subroutine sync64(c0,nf1,nf2,nfqso,ntol,mode64,emedelay,dtx,f0,jpk,sync,  &
   rms2=sqrt(sq/40.0)
   sync2=10.0*log10(a(2)/rms2)
 
+  slimit=2.0
+  rewind 17
   rewind 76
-  do i=1,iz-2*nskip
+  do i=2,iz-2*nskip-1,3
      x=i
      z=(x-a(3))/(0.5*a(4))
      yfit=a(1)
@@ -150,9 +147,13 @@ subroutine sync64(c0,nf1,nf2,nfqso,ntol,mode64,emedelay,dtx,f0,jpk,sync,  &
         yfit=a(1) + a(2)*(1.0/d - 0.1)
      endif
      j=i+ia+49
-     write(76,1110) j*df3-3000.0,s0a(j),yfit
+     freq=j*df3-3000.0
+     ss=(s0a(j-1)+s0a(j)+s0a(j+1))/3.0
+     if(ss.gt.slimit) write(17,1110) freq,ss
+     write(76,1110) freq,ss,yfit
 1110 format(3f10.3)
   enddo
+  flush(17)
   flush(76)
 
   return
diff --git a/plotter.cpp b/plotter.cpp
index bfbd0ee73..3acfd8409 100644
--- a/plotter.cpp
+++ b/plotter.cpp
@@ -1,6 +1,8 @@
 #include "plotter.h"
 #include <math.h>
 #include <QDebug>
+#include <fstream>
+#include <iostream>
 
 #define MAX_SCREENSIZE 2048
 
@@ -127,6 +129,27 @@ void CPlotter::paintEvent(QPaintEvent *)                    // paintEvent()
     UTCstr();
     painter2.drawText(5,10,m_sutc);
   }
+
+  if(m_line==63) {
+    std::ifstream f;
+    f.open("./red.dat");
+    if(f) {
+      int x;
+      float freq,sync;
+//      float df = 0.001*m_fSample/32768.0;
+      QPen pen0(Qt::red, 3);
+      painter2.setPen(pen0);
+      for(int i=0; i<50; i++) {
+        f >> freq >> sync;
+//        x = (freq - m_ZoomStartFreq)/df;
+        x=500;
+//        qDebug() << "a" << m_line << freq << sync << x;
+        painter2.drawLine(x,15,x,30);
+      }
+    }
+  }
+
+
   m_paintAllZoom=false;
   x00=x0;