diff --git a/doc/user_guide/en/wsjtx-main.adoc b/doc/user_guide/en/wsjtx-main.adoc
index 9bed15dc6..b6acd256f 100644
--- a/doc/user_guide/en/wsjtx-main.adoc
+++ b/doc/user_guide/en/wsjtx-main.adoc
@@ -1,5 +1,5 @@
 // This is a comment line, anything with // is ignored at process time.
-= _WSJT-X {VERSION_MAJOR}.{VERSION_MINOR}_ User Guide
+= _WSJT-X_ User Guide
 Joseph H Taylor, Jr, K1JT
 :revnumber: {VERSION}
 // For web-pages, adding :badges: is ok, but is a security issue for
diff --git a/lib/q65_sync.f90 b/lib/q65_sync.f90
index 3e45f9b56..842f14c94 100644
--- a/lib/q65_sync.f90
+++ b/lib/q65_sync.f90
@@ -135,7 +135,7 @@ subroutine q65_sync(nutc,iwave,nmax,mode_q65,codewords,ncw,nsps,nfqso,ntol,    &
            if(j.ge.1 .and. j.le.jz) then
               do i=-ia,ia
                  ii=i0+mode_q65*itone(k)+i
-                 ccf(i,lag)=ccf(i,lag) + s1(ii,j)
+                 if(ii.ge.1 .and. ii.le.iz) ccf(i,lag)=ccf(i,lag) + s1(ii,j)
               enddo
            endif
         enddo
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index f903bdede..8075f6b52 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -7340,9 +7340,9 @@ void MainWindow::transmit (double snr)
     if(m_TRperiod==60) nsps=7200;
     if(m_TRperiod==120) nsps=16000;
     if(m_TRperiod==300) nsps=41472;
-//    int mode65=pow(2.0,double(m_nSubMode));
-//    toneSpacing=mode65*12000.0/nsps;
-    toneSpacing=-4.0;
+    int mode65=pow(2.0,double(m_nSubMode));
+    toneSpacing=mode65*12000.0/nsps;
+//    toneSpacing=-4.0;
     Q_EMIT sendMessage (m_mode, NUM_Q65_SYMBOLS,
            double(nsps), ui->TxFreqSpinBox->value () - m_XIT,
            toneSpacing, m_soundOutput, m_config.audio_output_channel (),