diff --git a/plotter.cpp b/plotter.cpp
index ee7e24ecd..427ab8213 100644
--- a/plotter.cpp
+++ b/plotter.cpp
@@ -111,6 +111,7 @@ void CPlotter::draw(float swide[], int i0, float splot[])             //draw()
     m_hist2[i]=0;
   }
 
+//  qDebug() << "A" << m_binsPerPixel << m_nSpan << m_fSpan;
   painter2D.setPen(Qt::green);
   QRect tmp(0,0,w,h);
   painter2D.fillRect(tmp,Qt::black);
@@ -194,6 +195,7 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
   if(m_WaterfallPixmap.isNull()) return;
   int w = m_WaterfallPixmap.width();
   int x,y;
+  int nHzDiv[11]={0,50,100,200,200,200,500,500,500,500,500};
   float pixperdiv;
 
   QRect rect0;
@@ -209,18 +211,25 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
   painter0.setPen(Qt::black);
 
   double fftBinWidth=12000.0/m_nsps;
-  m_binsPerPixel = (m_nSpan/fftBinWidth)/w + 0.5;
   if(m_binsPerPixel < 1) m_binsPerPixel=1;
-  double FreqPerDiv=50.0;
   double df = m_binsPerPixel*fftBinWidth;
-//  qDebug() << "A" << fftBinWidth << m_binsPerPixel << df;
-  m_hdivs = w*df/FreqPerDiv + 0.9999;
   m_fSpan = w*df;
+//  m_freqPerDiv=50*m_binsPerPixel;
+//  m_freqPerDiv=nHzDiv[m_binsPerPixel];
+  int n=m_fSpan/10;
+  m_freqPerDiv=10;
+  if(n>25) m_freqPerDiv=50;
+  if(n>70) m_freqPerDiv=100;
+  if(n>250) m_freqPerDiv=500;
+  m_hdivs = w*df/m_freqPerDiv + 0.9999;
+  qDebug() << "B" << m_binsPerPixel << df << m_freqPerDiv << pixperdiv
+           << m_hdivs << m_fSpan;
   m_ScalePixmap.fill(Qt::white);
   painter0.drawRect(0, 0, w, 30);
 
   //draw tick marks on wideband (upper) scale
-  pixperdiv = FreqPerDiv/df;
+//  pixperdiv = m_binsPerPixel*m_freqPerDiv/df;
+  pixperdiv = m_freqPerDiv/df;
   for( int i=1; i<m_hdivs; i++) {     //major ticks
     x = (int)( (float)i*pixperdiv );
     painter0.drawLine(x,18,x,30);
@@ -274,14 +283,13 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
   painter3.setFont(Font);
   painter3.setPen(Qt::black);
 
-  FreqPerDiv=100;
   df = 12000.0/m_nsps;
-  m_hdivs = 4400*df/FreqPerDiv + 0.9999;
-  int nlabs=df*w/FreqPerDiv + 1.0;
+  m_hdivs = 4400*df/m_freqPerDiv + 0.9999;
+  int nlabs=df*w/m_freqPerDiv + 1.0;
   m_ZoomScalePixmap.fill(Qt::white);
   painter3.drawRect(0, 0, w, 30);
 
-  pixperdiv = FreqPerDiv/df;
+  pixperdiv = m_freqPerDiv/df;
   for( int i=0; i<10*nlabs; i++) {
     x = i*pixperdiv/10;
     y=24;
@@ -297,36 +305,17 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
     painter3.drawText(rect1, Qt::AlignHCenter|Qt::AlignVCenter,
                       m_HDivText[i]);
   }
-
-  df=m_fSample/32768.0;
-  x = (m_DF + m_mode65*66*11025.0/4096.0 - m_ZoomStartFreq)/df;
-  QPen pen2(Qt::red, 3);            //Mark top JT65B tone with red tick
-  painter3.setPen(pen2);
-  painter3.drawLine(x,15,x,30);
-  x = (m_DF - m_ZoomStartFreq)/df;
-  QPen pen1(Qt::green, 3);                //Mark DF with a green tick
-  painter3.setPen(pen1);
-  painter3.drawLine(x,15,x,30);
-  for(int i=2; i<5; i++) {                //Mark the shorthand freqs
-    x = (m_DF + m_mode65*10*i*11025.0/4096.0 - m_ZoomStartFreq)/df;
-    painter3.drawLine(x,20,x,30);
-  }
-  int x1=(m_DF - m_tol - m_ZoomStartFreq)/df;
-  int x2=(m_DF + m_tol - m_ZoomStartFreq)/df;
-  pen1.setWidth(6);
-  painter3.drawLine(x1,28,x2,28);
 }
 
 void CPlotter::MakeFrequencyStrs()                       //MakeFrequencyStrs
 {
   float freq;
   int i,j;
-  int FreqPerDiv=50;
 
   for(int i=0; i<=m_hdivs; i++) {
-    freq = m_StartFreq + i*FreqPerDiv;
+    freq = m_StartFreq + i*m_freqPerDiv;
     m_HDivText[i].setNum((int)freq);
-    //      StartFreq += FreqPerDiv;
+    //      StartFreq += m_freqPerDiv;
   }
 }
 
@@ -402,7 +391,12 @@ void CPlotter::setTol(int n)                                 //setTol()
   DrawOverlay();
 }
 
-void CPlotter::setBinsPerPixel(int n) {m_binsPerPixel = n;}  //set nbpp
+void CPlotter::setBinsPerPixel(int n)                       // set nbpp
+{
+  m_binsPerPixel = n;
+  DrawOverlay();                         //Redraw scales and ticks
+  update();                              //trigger a new paintEvent}
+}
 
 int CPlotter::binsPerPixel(){return m_binsPerPixel;}         //get nbpp
 
@@ -582,18 +576,6 @@ void CPlotter::setPalette(QString palette)                      //setPalette()
 
 }
 
-void CPlotter::setFsample(int n)
-{
-  m_fSample=n;
-}
-
-void CPlotter::setMode65(int n)
-{
-  m_mode65=n;
-  DrawOverlay();                         //Redraw scales and ticks
-  update();                              //trigger a new paintEvent
-}
-
 void CPlotter::set2Dspec(bool b)
 {
 //  m_2Dspec=b;
@@ -606,3 +588,10 @@ double CPlotter::fGreen()
 {
   return m_fGreen;
 }
+
+void CPlotter::setNsps(int n)                                  //setNSpan()
+{
+  m_nsps=n;
+  DrawOverlay();                         //Redraw scales and ticks
+  update();                              //trigger a new paintEvent}
+}
diff --git a/plotter.h b/plotter.h
index 70e105b8f..4218e706b 100644
--- a/plotter.h
+++ b/plotter.h
@@ -35,7 +35,6 @@ public:
   qint32  m_DF;
   qint32  m_tol;
   qint32  m_fCal;
-  qint32  m_nsps;
 
   void draw(float sw[], int i0, float splot[]);		//Update the waterfalls
   void SetRunningState(bool running);
@@ -63,8 +62,8 @@ public:
   int  autoZero();
   void setPalette(QString palette);
   void setFsample(int n);
-  void setMode65(int n);
   void set2Dspec(bool b);
+  void setNsps(int n);
   double fGreen();
 
 signals:
@@ -113,9 +112,10 @@ private:
   qint32  m_z2;
   qint32  m_nkhz;
   qint32  m_fSample;
-  qint32  m_mode65;
   qint32  m_i0;
   qint32  m_xClick;
+  qint32  m_freqPerDiv;
+  qint32  m_nsps;
 
 private slots:
   void mousePressEvent(QMouseEvent *event);
diff --git a/widegraph.cpp b/widegraph.cpp
index 6296fdc7c..46111f915 100644
--- a/widegraph.cpp
+++ b/widegraph.cpp
@@ -87,7 +87,7 @@ void WideGraph::dataSink2(float s[], int nkhz, int ihsym, int ndiskdata,
   }
 
   //Average spectra over specified number, m_waterfallAvg
-//  qDebug() << "A" << ihsym << NSMAX << df << nbpp;
+//  qDebug() << "C" << ihsym << NSMAX << df << nbpp;
   if (n==0) {
     for (int i=0; i<NSMAX; i++)
       splot[i]=s[i];
@@ -108,7 +108,7 @@ void WideGraph::dataSink2(float s[], int nkhz, int ihsym, int ndiskdata,
 //        1000.0/df + 0.5;
 
     int i0=0;                            //###
-    nbpp=1;                          //###
+//    nbpp=1;                          //###
 
     int i=i0;
     for (int j=0; j<2048; j++) {
@@ -149,13 +149,7 @@ void WideGraph::dataSink2(float s[], int nkhz, int ihsym, int ndiskdata,
 
 void WideGraph::on_freqSpanSpinBox_valueChanged(int n)
 {
-  ui->widePlot->setNSpan(n);
-  int w = ui->widePlot->plotWidth();
-  int nbpp = n * 32768.0/(w*96.0) + 0.5;
-  if(nbpp < 1) nbpp=1;
-  if(w > 0) {
-    ui->widePlot->setBinsPerPixel(nbpp);
-  }
+  ui->widePlot->setBinsPerPixel(n);
 }
 
 void WideGraph::on_waterfallAvgSpinBox_valueChanged(int n)
@@ -254,17 +248,6 @@ void WideGraph::setPalette(QString palette)
 {
   ui->widePlot->setPalette(palette);
 }
-void WideGraph::setFsample(int n)
-{
-  m_fSample=n;
-  ui->widePlot->setFsample(n);
-}
-
-void WideGraph::setMode65(int n)
-{
-  m_mode65=n;
-  ui->widePlot->setMode65(n);
-}
 
 void WideGraph::on_fCenterLineEdit_editingFinished()
 {
@@ -284,5 +267,5 @@ void WideGraph::setPeriod(int ntrperiod, int nsps)
 {
   m_TRperiod=ntrperiod;
   m_nsps=nsps;
-  ui->widePlot->m_nsps=nsps;
+  ui->widePlot->setNsps(nsps);
 }
diff --git a/widegraph.h b/widegraph.h
index 733047d31..6ae145af1 100644
--- a/widegraph.h
+++ b/widegraph.h
@@ -30,7 +30,6 @@ public:
   void   setFcal(int n);
   void   setPalette(QString palette);
   void   setFsample(int n);
-  void   setMode65(int n);
   void   setPeriod(int ntrperiod, int nsps);
   double fGreen();
 
@@ -60,7 +59,6 @@ private:
   qint32 m_waterfallAvg;
   qint32 m_fCal;
   qint32 m_fSample;
-  qint32 m_mode65;
   qint32 m_TRperiod;
   qint32 m_nsps;