diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f36a21c2..a40ca3eee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -804,7 +804,7 @@ endif (APPLE)
 #
 # Fortran setup
 #
-set (General_FFLAGS "-Wall -Wno-conversion -fbounds-check -fno-second-underscore")
+set (General_FFLAGS "-Wall -Wno-conversion -fno-second-underscore")
 
 # FFLAGS depend on the compiler
 get_filename_component (Fortran_COMPILER_NAME ${CMAKE_Fortran_COMPILER} NAME)
@@ -1135,7 +1135,7 @@ else ()
     )
   if (WIN32)
     set_target_properties (wsjtx PROPERTIES
-      LINK_FLAGS -Wl,--stack,8388608
+      LINK_FLAGS -Wl,--stack,16777216
       )
   endif ()
 endif ()
diff --git a/lib/fast_decode.f90 b/lib/fast_decode.f90
index 716e3040f..5628f3606 100644
--- a/lib/fast_decode.f90
+++ b/lib/fast_decode.f90
@@ -1,5 +1,5 @@
-subroutine fast_decode(id2,narg,ntrperiod,bShMsgs,line,     &
-     mycall_12,hiscall_12)
+subroutine fast_decode(id2,narg,ntrperiod,bShMsgs,line,mycall_12,   &
+     hiscall_12)
 
   parameter (NMAX=30*12000)
   integer*2 id2(NMAX)
@@ -40,7 +40,6 @@ subroutine fast_decode(id2,narg,ntrperiod,bShMsgs,line,     &
   nrxfreq=narg(10)
   ntol=narg(11)
   nhashcalls=narg(12)
-!  print*,'A',nutc
 
   line(1:100)(1:1)=char(0)
   if(t0.gt.float(ntrperiod)) go to 900
@@ -61,12 +60,9 @@ subroutine fast_decode(id2,narg,ntrperiod,bShMsgs,line,     &
      ib=nint(t1*12000.0)
      if(ib.gt.ntrperiod*12000) ib=ntrperiod*12000
      nz=ib-ia+1
-!     line(1)=char(0)
 
      if(newdat.eq.1) then
 ! Full sequence of new data
-!        write(*,3001) newdat,npick,nutca
-!3001    format(2i3,3i8)
         call msk144_decode(id2a(ia),nz,nutca,0,mycall,hiscall,   &
              bShMsgs,ntol,t0,line)
         go to 100
@@ -74,7 +70,6 @@ subroutine fast_decode(id2,narg,ntrperiod,bShMsgs,line,     &
 
      if(npick.eq.1) then
 ! Pick-decode from upper panel
-!        write(*,3001) newdat,npick,nutc
         call msk144_decode(id2(ia),nz,nutc,0,mycall,hiscall,   &
              bShMsgs,ntol,t0,line)
         go to 100
@@ -95,6 +90,8 @@ subroutine fast_decode(id2,narg,ntrperiod,bShMsgs,line,     &
      cdat2=cdat
      ndat=ndat0
      call wav11(id2,ndat,dat)
+     nzz=11025*ntrperiod
+     if(npts.lt.nzz) dat(npts+1:nzz)=0.0
      ndat=min(ndat,30*11025)
      call ana932(dat,ndat,cdat,npts)          !Make downsampled analytic signal
   endif
diff --git a/lib/wav11.f90 b/lib/wav11.f90
index 6fde8c404..3bba0bf8a 100644
--- a/lib/wav11.f90
+++ b/lib/wav11.f90
@@ -14,7 +14,7 @@ subroutine wav11(d2,npts,dd)
   jz=min(NZ12,npts)
   x(1:jz)=d2(1:jz)
   x(jz+1:)=0.0
-  call four2a(x,nfft1,1,-1,0)                    !Forwarxd FFT, r2c
+  call four2a(x,nfft1,1,-1,0)                    !Forward FFT, r2c
   df=12000.0/NFFT1
   ia=5000.0/df
   cx(ia:)=0.0
@@ -22,7 +22,6 @@ subroutine wav11(d2,npts,dd)
   npts=jz*11025.0/12000.0
   fac=1.e-6
   dd(1:npts)=fac*x(1:npts)
-  if(npts.lt.NZ11) dd(npts+1:NZ11)=0.0
 
   return
 end subroutine wav11
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 3df9fb0db..7ae0bb717 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -110,7 +110,7 @@ extern "C" {
 
   void fast_decode_(short id2[], int narg[], int* ntrperiod, bool* bShMsgs,
                     char msg[], char mycall[], char hiscall[],
-                    int len1, int len2, int len3, int len4);
+                    int len1, int len2, int len3);
   void degrade_snr_(short d2[], int* n, float* db, float* bandwidth);
   void wav12_(short d2[], short d1[], int* nbytes, short* nbitsam2);
   void refspectrum_(short int d2[], bool* brefspec, bool* buseref,
@@ -2182,7 +2182,7 @@ void MainWindow::decode()                                       //decode()
     isec=isec - isec%m_TRperiod;
     dec_data.params.nutc=10000*ihr + 100*imin + isec;
   }
-  if(m_nPick==1 and m_diskData)
+//  if(m_nPick==1 and m_diskData)  ???
 
   if(m_nPick==2) dec_data.params.nutc=m_nutc0;
   dec_data.params.nfqso=m_wideGraph->rxFreq();
@@ -2291,7 +2291,7 @@ void MainWindow::decode()                                       //decode()
     memcpy(d2b,dec_data.d2,2*360000);
     watcher3.setFuture (QtConcurrent::run (std::bind (fast_decode_,&d2b[0],
         &narg[0],&m_TRperiod,&m_bShMsgs,&m_msg[0][0],
-        dec_data.params.mycall,dec_data.params.hiscall,80,512,12,12)));
+        dec_data.params.mycall,dec_data.params.hiscall,8000,12,12)));
   } else {
     memcpy(to, from, qMin(mem_jt9->size(), size));
     QFile {m_config.temp_dir ().absoluteFilePath (".lock")}.remove (); // Allow jt9 to start