diff --git a/lib/ft8/foxgen.f90 b/lib/ft8/foxgen.f90
index 18450395e..3251c8e94 100644
--- a/lib/ft8/foxgen.f90
+++ b/lib/ft8/foxgen.f90
@@ -1,4 +1,4 @@
-subroutine foxgen(bSuperFox)
+subroutine foxgen(bSuperFox,cmnd)
 
   ! Called from MainWindow::foxTxSequencer() to generate the Tx waveform in
   ! FT8 Fox mode.  The Tx message can contain up to 5 "slots", each carrying
@@ -18,6 +18,7 @@ subroutine foxgen(bSuperFox)
   parameter (NWAVE=(160+2)*134400*4) !the biggest waveform we generate (FST4-1800 at 48kHz)
   parameter (NFFT=614400,NH=NFFT/2)
   logical*1 bSuperFox
+  character*120 cmnd
   character*40 cmsg
   character*37 msg,msgsent
   integer itone(79)
@@ -31,7 +32,7 @@ subroutine foxgen(bSuperFox)
   equivalence (x,cx),(y,cy)
 
   if(bSuperFox) then
-     call foxgen2(nslots,cmsg)
+     call foxgen2(nslots,cmsg,cmnd)
      return
   endif
   
diff --git a/lib/superfox/foxgen2.f90 b/lib/superfox/foxgen2.f90
index 1fc06580e..68bb28357 100644
--- a/lib/superfox/foxgen2.f90
+++ b/lib/superfox/foxgen2.f90
@@ -1,24 +1,25 @@
-subroutine foxgen2(nslots,cmsg)
+subroutine foxgen2(nslots,cmsg,line)
 
 ! Called from foxgen() when it's time to encode a SuperFox message and
 ! generate the waveform to be transmitted.  We need to parse the old-style
 ! Fox messages and extract the necessary pieces.
 
   use packjt77
+  character*120 line
   character*40 cmsg(5)                !Old-style Fox messages are here
   character*37 msg
-  character*22 sfmsg
-  character*12 mycall
+  character*26 sfmsg
+  character*13 mycall
   character*4 mygrid
   character*6 hiscall_1,hiscall_2
-  character*4 rpt_1,rpt_2
+  character*4 rpt1,rpt2
   character*13 w(19)
   integer nw(19)
   integer ntype        !Message type: 0 Free Text
                        !              1 CQ MyCall MyGrid
                        !              2 Call_1 MyCall RR73
-                       !              3 Call_1 MyCall rpt_1
-                       !              4 Call_1 RR73; Call_2 <MyCall> rpt_2
+                       !              3 Call_1 MyCall rpt1
+                       !              4 Call_1 RR73; Call_2 <MyCall> rpt2
   
   if(nslots.lt.1 .or. nslots.gt.5) return
   k=0
@@ -27,8 +28,8 @@ subroutine foxgen2(nslots,cmsg)
      hiscall_2=''
      mycall=''
      mygrid=''
-     rpt_1=''
-     rpt_2=''
+     rpt1=''
+     rpt2=''
      msg=cmsg(i)(1:37)
      call split77(msg,nwords,nw,w)
      ntype=0
@@ -40,37 +41,38 @@ subroutine foxgen2(nslots,cmsg)
         ntype=4
         hiscall_1=w(1)(1:6)
         hiscall_2=w(3)(1:6)
-        rpt_1='RR73'
-        rpt_2=w(5)(1:4)
+        rpt1='RR73'
+        rpt2=w(5)(1:4)
         mycall=w(4)(2:nw(4)-1)
      else if(index(msg,' RR73').gt.0) then
         ntype=2
         hiscall_1=w(1)(1:6)
         mycall=w(2)(1:12)
-        rpt_1='RR73'
+        rpt1='RR73'
      else if(nwords.eq.3 .and. nw(3).eq.3 .and. &
           (w(3)(1:1).eq.'-' .or. w(3)(1:1).eq.'+')) then
         ntype=3
         hiscall_1=w(1)(1:6)
         mycall=w(2)(1:12)
-        rpt_1=w(3)(1:4)
+        rpt1=w(3)(1:4)
      endif
-!     write(*,3001) ntype,cmsg(i),hiscall_1,rpt_1,hiscall_2,rpt_2,  &
+!     write(*,3001) ntype,cmsg(i),hiscall_1,rpt1,hiscall_2,rpt2,  &
 !          mycall(1:6),mygrid
 !3001 format(i1,2x,a37,1x,a6,1x,a4,1x,a6,1x,a4,1x,a6,1x,a4)
 
      k=k+1
-     if(ntype.le.3) call sfox_assemble(ntype,k,msg(1:22),mycall,mygrid)
+     if(ntype.le.3) call sfox_assemble(ntype,k,msg(1:26),mycall,mygrid,line)
      if(ntype.eq.4) then
         sfmsg=w(1)(1:nw(1))//' '//mycall(1:len(trim(mycall))+1)//'RR73'
-        call sfox_assemble(2,k,sfmsg,mycall,mygrid)
+        call sfox_assemble(2,k,sfmsg,mycall,mygrid,line)
         sfmsg=w(3)(1:nw(3))//' '//mycall(1:len(trim(mycall))+1)//w(5)(1:3)
         k=k+1
-        call sfox_assemble(3,k,sfmsg,mycall,mygrid)
+        call sfox_assemble(3,k,sfmsg,mycall,mygrid,line)
      endif
 
   enddo
-  call sfox_assemble(ntype,11,msg(1:22),mycall,mygrid)      !k=11 to finish up
+
+  call sfox_assemble(ntype,11,msg(1:26),mycall,mygrid,line)   !k=11 to finish up
 
   return
 end subroutine foxgen2
diff --git a/lib/superfox/sfox_assemble.f90 b/lib/superfox/sfox_assemble.f90
index 0ecbb3de4..acaea3247 100644
--- a/lib/superfox/sfox_assemble.f90
+++ b/lib/superfox/sfox_assemble.f90
@@ -1,70 +1,91 @@
-subroutine sfox_assemble(ntype,k,msg,mycall0,mygrid0)
+subroutine sfox_assemble(ntype,k,msg,mycall0,mygrid0,line)
 
 ! In subsequent calls, assemble all necessary information for a SuperFox
 ! transmission.
 
-  character*22 msg
-  character*22 msg0,msg1,msg2(10),msg3(5)
-  character*12 mycall0,mycall
+  character*120 line
+  character*26 msg
+  character*26 msg0,msg1,msg2(5),msg3(5)
+  character*4 rpt2(5)
+  character*6 hiscall(10)
+  character*13 mycall0,mycall
   character*4 mygrid0,mygrid
   integer ntype             !Message type: 0 Free Text
                             !              1 CQ MyCall MyGrid    
                             !              2 Call_1 MyCall RR73
                             !              3 Call_1 MyCall rpt
   integer nmsg(0:3)         !Number of messages of type ntype
-  data nmsg/0,0,0,0/,nbits/0/,ntx/0/
+  data nmsg/0,0,0,0/,nbits/0/,ntx/0/,nb_mycall/0/
   save
 
   if(mycall0(1:1).ne.' ') mycall=mycall0
   if(mygrid0(1:1).ne.' ') mygrid=mygrid0
+  if(ntype.ge.1) nb_mycall=28           !### Allow for nonstandard MyCall ###
+  if(sum(nmsg).eq.0) then
+     hiscall='      '
+     rpt2='    '
+  endif
+
   if(k.le.10) then
      if(ntype.eq.0) then
-        if(nbits.le.191) then           !Enough room for a free text message?
+        if(nbits+nb_mycall.le.191) then  !Enough room for a free text message?
            nmsg(ntype)=nmsg(ntype)+1
            nbits=nbits+142
            msg0=msg
         endif
      else if(ntype.eq.1) then
-        if(nbits.le.290) then
+        if(nbits+nb_mycall.le.318) then  !Enough room for a CQ ?
            nmsg(ntype)=nmsg(ntype)+1
-           nbits=nbits+43
+           nbits=nbits+15
            msg1=msg
         endif
      else if(ntype.eq.2) then
-        if(nbits.le.305) then
+        if(nbits+nb_mycall.le.305) then  !Enough room for a RR73 message?
            nmsg(ntype)=nmsg(ntype)+1
            nbits=nbits+28
            j=nmsg(ntype)
            msg2(j)=msg
+           i1=index(msg,' ')
+           hiscall(j+5)=msg(1:i1-1)
         endif
-     else
-        if(nbits.le.300) then
+     else if(ntype.eq.3) then
+        if(nbits+nb_mycall.le.300) then  !Enough room for a message with report?
            nmsg(ntype)=nmsg(ntype)+1
            nbits=nbits+33
            j=nmsg(ntype)
            msg3(j)=msg
+           i1=index(msg,' ')
+           hiscall(j)=msg(1:i1-1)
+           i1=max(index(msg,'-'),index(msg,'+'))
+           rpt2(j)=msg(i1:i1+3)
         endif
      endif
      return
   endif
 
   if(k.ge.11) then
-! All necessary pieces are in place. Now encode the SuperFox message and
-! generate the waveform to be transmitted.
-     ntx=ntx+1                                 !Transmission number
-     write(*,3002) ntx,ntype,nmsg(0:3),nbits
-3002 format(i3,i5,2x,4i3,i6)
-     if(nmsg(0).ge.1) write(*,3010) ntx,msg0
-3010 format(i3,2x,a22)
-     if(nmsg(1).ge.1) write(*,3010) ntx,msg1
-     do i=1,nmsg(2)
-        write(*,3010) ntx,msg2(i)
-     enddo
-     do i=1,nmsg(3)
-        write(*,3010) ntx,msg3(i)
-     enddo
+! All pieces are now available. Put them into a command line for external
+! program sfox_tx.
+     ntx=ntx+1                                      !Transmission number
+     nbits=nbits+nb_mycall                          !Add bits for MyCall
+
+     if(nmsg(1).ge.1) then
+        line=msg1
+     else
+        line=trim(mycall)
+        do i=1,nmsg(3)
+           line=trim(line)//'  '//trim(hiscall(i))//' '//rpt2(i)
+        enddo
+        do i=1,nmsg(2)
+           line=trim(line)//'  '//trim(hiscall(i))
+        enddo
+     endif
+
      nmsg=0
      nbits=0
+     nb_mycall=0
+     hiscall='      '
+     rpt2='    '
   endif
 
   return
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index c96205f3c..1f440ee73 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -176,7 +176,7 @@ extern "C" {
   void calibrate_(char const * data_dir, int* iz, double* a, double* b, double* rms,
                   double* sigmaa, double* sigmab, int* irc, fortran_charlen_t);
 
-  void foxgen_(bool* bSuperFox);
+  void foxgen_(bool* bSuperFox, char* cmnd, fortran_charlen_t);
 
   void plotsave_(float swide[], int* m_w , int* m_h1, int* irow);
 
@@ -4824,7 +4824,12 @@ void MainWindow::guiUpdate()
               QString foxCall=m_config.my_callsign() + "         ";
               ::memcpy(foxcom_.mycall, foxCall.toLatin1(), sizeof foxcom_.mycall); //Copy Fox callsign into foxcom_
               bool bSuperFox=m_config.superFox();
-              foxgen_(&bSuperFox);
+              char cmnd[120];
+              foxgen_(&bSuperFox, cmnd, 120);
+              if(bSuperFox) {
+                QString t=QString::fromLatin1(cmnd).trimmed();
+                sfox_tx(t);
+              }
             }
           }
         }
@@ -10299,7 +10304,13 @@ Transmit:
   QString foxCall=m_config.my_callsign() + "         ";
   ::memcpy(foxcom_.mycall, foxCall.toLatin1(),sizeof foxcom_.mycall);   //Copy Fox callsign into foxcom_
   bool bSuperFox=m_config.superFox();
-  foxgen_(&bSuperFox);
+  qDebug() << "bb" << foxcom_.nslots << foxcom_.mycall << foxcom_.cmsg;
+  char cmnd[120];
+  foxgen_(&bSuperFox, cmnd, 120);
+  if(bSuperFox) {
+    QString t=QString::fromLatin1(cmnd).trimmed();
+    sfox_tx(t);
+  }
   m_tFoxTxSinceCQ++;
 
   for(QString hc: m_foxQSO.keys()) {               //Check for strikeout or timeout
@@ -10874,3 +10885,12 @@ void MainWindow::on_jt65Button_clicked()
 {
   on_actionJT65_triggered();
 }
+
+void MainWindow::sfox_tx(QString t)
+{
+  qint64 ms0 = QDateTime::currentMSecsSinceEpoch();
+  p2.start("sfox_tx", QStringList {t});
+  p2.waitForFinished();
+  QString t2=p2.readAllStandardOutput();
+  qDebug() << "aa" << QDateTime::currentMSecsSinceEpoch() - ms0 << t2;
+}
diff --git a/widgets/mainwindow.h b/widgets/mainwindow.h
index 383a61105..374874ba2 100644
--- a/widgets/mainwindow.h
+++ b/widgets/mainwindow.h
@@ -379,6 +379,7 @@ private:
   bool elide_tx1_not_allowed () const;
   void readWidebandDecodes();
   void configActiveStations();
+  void sfox_tx(QString t);
 
   QProcessEnvironment const& m_env;
   NetworkAccessManager m_network_manager;
@@ -622,6 +623,8 @@ private:
   NonInheritingProcess p1;
   NonInheritingProcess p3;
 
+  QProcess p2;
+
   WSPRNet *wsprNet;
 
   QTimer m_guiTimer;