diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index ef531fa42..e537c53a5 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -428,7 +428,7 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
   ui->dxGridEntry->setValidator (new MaidenheadLocatorValidator {this});
   ui->dxCallEntry->setValidator (new CallsignValidator {this});
   ui->sbTR->values ({5, 10, 15, 30, 60, 120, 300, 900, 1800});
-  ui->sbTR_FST4W->values ({15, 30, 60, 120, 300, 900, 1800});
+  ui->sbTR_FST4W->values ({120, 300, 900, 1800});
   ui->decodedTextBrowser->set_configuration (&m_config, true);
   ui->decodedTextBrowser2->set_configuration (&m_config);
 
diff --git a/widgets/plotter.cpp b/widgets/plotter.cpp
index fb65bd775..c21d7e5f0 100644
--- a/widgets/plotter.cpp
+++ b/widgets/plotter.cpp
@@ -56,6 +56,7 @@ CPlotter::CPlotter(QWidget *parent) :                  //CPlotter Constructor
   setAutoFillBackground(false);
   setAttribute(Qt::WA_OpaquePaintEvent, false);
   setAttribute(Qt::WA_NoSystemBackground, true);
+  setMouseTracking(true);
   m_bReplot=false;
 
   // contextual pop up menu
@@ -697,6 +698,13 @@ void CPlotter::setRxFreq (int x)                               //setRxFreq
 
 int CPlotter::rxFreq() {return m_rxFreq;}                      //rxFreq
 
+void CPlotter::mouseMoveEvent (QMouseEvent * event)
+{
+  int x=event->x();
+  QToolTip::showText(event->globalPos(),QString::number(int(FreqfromX(x))));
+  QWidget::mouseMoveEvent(event);
+}
+
 void CPlotter::mouseReleaseEvent (QMouseEvent * event)
 {
   if (Qt::LeftButton == event->button () and m_mode!="FST4W") {
diff --git a/widgets/plotter.h b/widgets/plotter.h
index b3eb85855..b4b4cf42b 100644
--- a/widgets/plotter.h
+++ b/widgets/plotter.h
@@ -13,6 +13,7 @@
 #include <QImage>
 #include <QVector>
 #include <QColor>
+#include <QToolTip>
 
 #define VERT_DIVS 7	//specify grid screen divisions
 #define HORZ_DIVS 20
@@ -91,6 +92,7 @@ protected:
   //re-implemented widget event handlers
   void paintEvent(QPaintEvent *event) override;
   void resizeEvent(QResizeEvent* event) override;
+  void mouseMoveEvent(QMouseEvent * event) override;
   void mouseReleaseEvent (QMouseEvent * event) override;
   void mouseDoubleClickEvent (QMouseEvent * event) override;