diff --git a/getfile.cpp b/getfile.cpp
index 27daef0d6..adb4c4e75 100644
--- a/getfile.cpp
+++ b/getfile.cpp
@@ -121,6 +121,7 @@ float gran()
   return v2*fac;
 }
 
+/*
 int ptt(int nport, int ntx, int *iptt)
 {
 #ifdef WIN32
@@ -159,14 +160,49 @@ int ptt(int nport, int ntx, int *iptt)
     *iptt=0;
     open=0;
   }
-  /*
-  if(i3==0) return -(SETRTS);
-  if(i4==0) return -(CLRRTS);
-  if(i5==0) return -(SETDTR);
-  if(i6==0) return -(CLRDTR);
-  if(i9==0) return -(CLRBREAK);
-  if(i00==0) return -10;
-  */
+  return 0;
+#endif
+}
+*/
+
+int ptt(int nport, int ntx, int* iptt, int* nopen)
+{
+#ifdef WIN32
+  static HANDLE hFile;
+  char s[10];
+  int i3=1,i4=1,i5=1,i6=1,i9=1,i00=1;
+
+  if(nport==0) {
+    *iptt=ntx;
+    return(0);
+  }
+
+  if(ntx && (!(*nopen))) {
+    sprintf(s,"\\\\.\\COM%d",nport);
+    hFile=CreateFile(TEXT(s),GENERIC_WRITE,0,NULL,OPEN_EXISTING,
+                     FILE_ATTRIBUTE_NORMAL,NULL);
+    if(hFile==INVALID_HANDLE_VALUE) {
+      QString t;
+      t.sprintf("Cannot open COM port %d for PTT\n",nport);
+      return 1;
+    }
+    *nopen=1;
+  }
+
+  if(ntx && *nopen) {
+    i3=EscapeCommFunction(hFile,SETRTS);
+    i5=EscapeCommFunction(hFile,SETDTR);
+    *iptt=1;
+  }
+
+  else {
+    i4=EscapeCommFunction(hFile,CLRRTS);
+    i6=EscapeCommFunction(hFile,CLRDTR);
+    i9=EscapeCommFunction(hFile,CLRBREAK);
+    i00=CloseHandle(hFile);
+    *iptt=0;
+    *nopen=0;
+  }
   return 0;
 #endif
 }
diff --git a/getfile.h b/getfile.h
index 515e02afd..2d4ffed07 100644
--- a/getfile.h
+++ b/getfile.h
@@ -7,6 +7,8 @@
 
 void getfile(QString fname, int ntrperiod);
 float gran();
-int ptt(int* nport, int* ntx, int* iptt);
+//int ptt(int* nport, int* ntx, int* iptt);
+int ptt(int nport, int ntx, int* iptt, int* nopen);
+
 
 #endif // GETFILE_H
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 8bf6622b6..c25bba916 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -100,6 +100,7 @@ MainWindow::MainWindow(QWidget *parent) :
   QTimer *guiTimer = new QTimer(this);
   connect(guiTimer, SIGNAL(timeout()), this, SLOT(guiUpdate()));
   guiTimer->start(100);                            //Don't change the 100 ms!
+
   m_auto=false;
   m_waterfallAvg = 1;
   m_txFirst=false;
@@ -130,6 +131,8 @@ MainWindow::MainWindow(QWidget *parent) :
   m_TRperiod=60;
   m_inGain=0;
   m_dataAvailable=false;
+  m_iptt=0;
+  m_COMportOpen=0;
   decodeBusy(false);
 
   ui->xThermo->setFillBrush(Qt::green);
@@ -1228,23 +1231,24 @@ void MainWindow::guiUpdate()
     if(f.exists() and fmod(tsec,m_TRperiod)<1.0 + 85.0*m_nsps/12000.0)
       bTxTime=true;
 
-    if(bTxTime and iptt==0 and !btxMute) {
+    if(bTxTime and iptt==0 and !btxMute) { 
+/*
+      //Raise PTT
+      if(m_pttMethodIndex==0) {
+        m_cmnd=rig_command() + " T 1";
+        p3.start(m_cmnd);
+        p3.waitForFinished();
+      }
+      if(m_pttMethodIndex==1 or m_pttMethodIndex==2) {
+          ptt(m_pttPort,1,&m_iptt,&m_COMportOpen);
+//        ptt(m_pttPort,1,&m_iptt);
+      }
+      qDebug() << "ptt1Timer A";
+      ptt1Timer->start(200);                       //Sequencer delay
+*/
 
       int itx=1;
-      int ierr = ptt(m_pttPort,itx,&iptt);       // Raise PTT
-
- /*
-      //Raise PTT
-        if(m_pttMethodIndex==0) {
-          m_cmnd=rig_command() + " T 1";
-          p3.start(m_cmnd);
-          p3.waitForFinished();
-        }
-        if(m_pttMethodIndex==1 or m_pttMethodIndex==2) {
-//          ptt(m_pttPort,1,&m_iptt,&m_COMportOpen);
-          ptt(m_pttPort,1,&m_iptt);
-        }
-*/
+      ptt(m_pttPort,itx,&iptt,&m_COMportOpen);       // Raise PTT
       if(!soundOutThread.isRunning()) {
         QString t=ui->tx6->text();
         double snr=t.mid(1,5).toDouble();
@@ -1252,6 +1256,7 @@ void MainWindow::guiUpdate()
         soundOutThread.setTxSNR(snr);
         soundOutThread.start(QThread::HighPriority);
       }
+
     }
     if(!bTxTime || btxMute) {
       btxok=false;
@@ -1332,10 +1337,8 @@ void MainWindow::guiUpdate()
     nc0++;
   }
   if(nc0 == 0) {
-    int itx=0;
-    int ierr=ptt(m_pttPort,itx,&iptt);       // Lower PTT
 
-/*
+    /*
     //Lower PTT
       if(m_pttMethodIndex==0) {
         m_cmnd=rig_command() + " T 0";
@@ -1343,10 +1346,13 @@ void MainWindow::guiUpdate()
         p3.waitForFinished();
       }
       if(m_pttMethodIndex==1 or m_pttMethodIndex==2) {
-//        ptt(m_pttPort,0,&m_iptt,&m_COMportOpen);
-        ptt(m_pttPort,0,&m_iptt);
+        ptt(m_pttPort,0,&m_iptt,&m_COMportOpen);
+//        ptt(m_pttPort,0,&m_iptt);
       }
-*/
+      */
+
+    int itx=0;
+    ptt(m_pttPort,itx,&iptt,&m_COMportOpen);       // Lower PTT
 
     if(!btxMute) soundOutThread.quitExecution=true;
     m_transmitting=false;
@@ -1405,19 +1411,6 @@ void MainWindow::guiUpdate()
     m_hsym0=khsym;
     m_sec0=nsec;
 
-/*
-    if(m_myCall=="K1JT") {
-      char s[20];
-      double t1=1.0;
-//Better: use signals from sound threads?
-      if(soundInThread.isRunning()) t1=soundInThread.samFacIn();
-      double t2=1.0;
-      if(soundOutThread.isRunning()) t2=soundOutThread.samFacOut();
-      sprintf(s,"%6.4f  %6.4f",t1,t2);
-      lab5->setText(s);
-    }
-*/
-
   }
   iptt0=iptt;
   btxok0=btxok;
diff --git a/mainwindow.h b/mainwindow.h
index 7d8ef2dc1..e0f20a652 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -113,7 +113,6 @@ private slots:
   void dialFreqChanged2(double f);
   void on_actionErase_ALL_TXT_triggered();
   void on_actionErase_wsjtx_log_adi_triggered();
-
   void showMacros(const QPoint& pos);
   void onPopup1();
   void onPopup2();
@@ -127,7 +126,6 @@ private slots:
   void onPopup10();
   void on_actionConvert_JT9_x_to_RTTY_triggered(bool checked);
   void on_actionLog_JT9_without_submode_triggered(bool checked);
-
   void on_actionLog_dB_reports_to_Comments_triggered(bool checked);
 
 private: