diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0db7a569e..ccb2f6d5c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -512,6 +512,7 @@ set (wsjt_FSRCS
   lib/msk144signalquality.f90
   lib/msk144sim.f90
   lib/mskrtd.f90
+  lib/nuttal_window.f90
   lib/ft4/ft4sim.f90
   lib/ft4/ft4sim_mult.f90
   lib/ft4/ft4_decode.f90
diff --git a/lib/ft4/ft4_decode.f90 b/lib/ft4/ft4_decode.f90
index 8d40aa8cd..3a8c12f14 100644
--- a/lib/ft4/ft4_decode.f90
+++ b/lib/ft4/ft4_decode.f90
@@ -1,5 +1,5 @@
 subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
-   iwave,ndecodes,mycall,hiscall,nrx,line,data_dir)
+   iwave,ndecodes,mycall,hiscall,cqstr,nrx,line,data_dir)
 
    use packjt77
    include 'ft4_params.f90'
@@ -14,9 +14,9 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
    character*12 mycall,hiscall
    character*12 mycall0,hiscall0
    character*6 hhmmss
+   character*4 cqstr,cqstr0
 
    complex cd2(0:NMAX/NDOWN-1)                  !Complex waveform
-!   complex cds(0:NMAX/NDOWN-1)                  !Complex waveform
    complex cb(0:NMAX/NDOWN-1)
    complex cd(0:NN*NSS-1)                       !Complex waveform
    complex ctwk(4*NSS),ctwk2(4*NSS)
@@ -32,6 +32,7 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
    real savg(NH1),sbase(NH1)
 
    integer apbits(2*ND)
+   integer apmy_ru(28),aphis_fd(28)
    integer nrxx(100)
    integer icos4a(0:3),icos4b(0:3),icos4c(0:3),icos4d(0:3)
    integer*2 iwave(NMAX)                 !Generated full-length waveform
@@ -41,7 +42,7 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
    integer ip(1)
    integer nappasses(0:5)    ! # of decoding passes for QSO States 0-5
    integer naptypes(0:5,4)   ! nQSOProgress, decoding pass
-   integer mcq(29),mcqru(29),mcqfd(29),mcqtest(29)
+   integer mcq(29)
    integer mrrr(19),m73(19),mrr73(19)
 
    logical nohiscall,unpk77_success
@@ -56,9 +57,6 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
    data msg0/' '/
    data first/.true./
    data     mcq/0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0/
-   data   mcqru/0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1,1,0,0,1,1,0,0/
-   data   mcqfd/0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0,1,0/
-   data mcqtest/0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,1,0,1,0,1,1,1,1,1,1,0,0,1,0/
    data    mrrr/0,1,1,1,1,1,1,0,1,0,0,1,0,0,1,0,0,0,1/
    data     m73/0,1,1,1,1,1,1,0,1,0,0,1,0,1,0,0,0,0,1/
    data   mrr73/0,1,1,1,1,1,1,0,0,1,1,1,0,1,0,1,0,0,1/
@@ -66,7 +64,7 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
       1,0,0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,0,1,1,1,1,0,0,1,0,1, &
       0,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0,1,0,1/
    save fs,dt,tt,txt,twopi,h,one,first,nrxx,linex,apbits,nappasses,naptypes, &
-      mycall0,hiscall0,msg0
+      mycall0,hiscall0,msg0,cqstr0
    
    call clockit('ft4_deco',0)
    hhmmss=cdatetime0(8:13)
@@ -85,10 +83,6 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
          enddo
       enddo
 
-      mcq=2*mod(mcq+rvec(1:29),2)-1
-      mcqfd=2*mod(mcqfd+rvec(1:29),2)-1
-      mcqru=2*mod(mcqru+rvec(1:29),2)-1
-      mcqtest=2*mod(mcqtest+rvec(1:29),2)-1
       mrrr=2*mod(mrrr+rvec(59:77),2)-1
       m73=2*mod(m73+rvec(59:77),2)-1
       mrr73=2*mod(mrr73+rvec(59:77),2)-1
@@ -107,9 +101,6 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
 !   4        MyCall DxCall RRR           (77 ap bits)
 !   5        MyCall DxCall 73            (77 ap bits)
 !   6        MyCall DxCall RR73          (77 ap bits)
-!********
-! For this contest-oriented mode, OK to only look for RR73??
-! Currently, 2 AP passes in all Txn states except for Tx5.
 !********
       naptypes(0,1:4)=(/1,2,0,0/) ! Tx6 selected (CQ)
       naptypes(1,1:4)=(/2,3,0,0/) ! Tx1
@@ -120,9 +111,26 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
 
       mycall0=''
       hiscall0=''
+      cqstr0=''
       first=.false.
    endif
 
+   if(cqstr.ne.cqstr0) then
+      i0=index(cqstr,' ')
+      if(i0.le.1) then 
+         message='CQ A1AA AA01'
+      else
+         message='CQ '//cqstr(1:i0-1)//' A1AA AA01'
+      endif
+      i3=-1
+      n3=-1
+      call pack77(message,i3,n3,c77)
+      call unpack77(c77,1,msgsent,unpk77_success)
+      read(c77,'(29i1)') mcq
+      mcq=2*mod(mcq+rvec(1:29),2)-1
+      cqstr0=cqstr
+   endif
+
    l1=index(mycall,char(0))
    if(l1.ne.0) mycall(l1:)=" "
    l1=index(hiscall,char(0))
@@ -131,6 +139,8 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
       apbits=0
       apbits(1)=99
       apbits(30)=99
+      apmy_ru=0
+      aphis_fd=0
 
       if(len(trim(mycall)) .lt. 3) go to 10 
 
@@ -147,6 +157,8 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
       call unpack77(c77,1,msgsent,unpk77_success)
       if(i3.ne.1 .or. (message.ne.msgsent) .or. .not.unpk77_success) go to 10 
       read(c77,'(77i1)') message77
+      apmy_ru=2*mod(message77(1:28)+rvec(2:29),2)-1
+      aphis_fd=2*mod(message77(30:57)+rvec(29:56),2)-1
       message77=mod(message77+rvec,2)
       call encode174_91(message77,cw)
       apbits=2*cw-1
@@ -366,15 +378,10 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
             if(iaptype.ge.2 .and. apbits(1).gt.1) cycle  ! No, or nonstandard, mycall
             if(iaptype.ge.3 .and. apbits(30).gt.1) cycle ! No, or nonstandard, dxcall
 
-            if(iaptype.eq.1) then  ! CQ or CQ TEST
+            if(iaptype.eq.1) then  ! CQ or CQ TEST or CQ FD or CQ RU or CQ SCC
                apmask=0
                apmask(1:29)=1
-               if(ncontest.eq.0) llrd(1:29)=apmag*mcq(1:29)
-               if(ncontest.eq.1) llrd(1:29)=apmag*mcqtest(1:29)
-               if(ncontest.eq.2) llrd(1:29)=apmag*mcqtest(1:29)
-               if(ncontest.eq.3) llrd(1:29)=apmag*mcqfd(1:29)
-               if(ncontest.eq.4) llrd(1:29)=apmag*mcqru(1:29)
-               if(ncontest.eq.6) llrd(1:29)=apmag*mcq(1:29)
+               llrd(1:29)=apmag*mcq(1:29)
             endif
 
             if(iaptype.eq.2) then ! MyCall,???,???
@@ -390,43 +397,31 @@ subroutine ft4_decode(cdatetime0,tbuf,nfa,nfb,nQSOProgress,ncontest,nfqso, &
                   llrd(1:28)=apmag*apbits(1:28)
                else if(ncontest.eq.4) then
                   apmask(2:29)=1
-                  llrd(2:29)=apmag*apbits(1:28)
-               else if(ncontest.eq.6) then ! ??? RR73; MyCall <???> ???
-                  apmask(29:56)=1
-                  llrd(29:56)=apmag*apbits(1:28)
+                  llrd(2:29)=apmag*apmy_ru(1:28)
                endif
             endif
 
             if(iaptype.eq.3) then ! MyCall,DxCall,???
                apmask=0
-               if(ncontest.eq.0.or.ncontest.eq.1.or.ncontest.eq.2.or.ncontest.eq.6) then
+               if(ncontest.eq.0.or.ncontest.eq.1.or.ncontest.eq.2) then
                   apmask(1:58)=1
                   llrd(1:58)=apmag*apbits(1:58)
                else if(ncontest.eq.3) then ! Field Day
                   apmask(1:56)=1
                   llrd(1:28)=apmag*apbits(1:28)
-                  llrd(29:56)=apmag*apbits(30:57)
+                  llrd(29:56)=apmag*aphis_fd(1:28)
                else if(ncontest.eq.4) then ! RTTY RU
                   apmask(2:57)=1
-                  llrd(2:29)=apmag*apbits(1:28)
+                  llrd(2:29)=apmag*apmy_ru(1:28)
                   llrd(30:57)=apmag*apbits(30:57)
                endif
             endif
 
-            if(iaptype.eq.5.and.ncontest.eq.6) cycle !Hound
             if(iaptype.eq.4 .or. iaptype.eq.5 .or. iaptype.eq.6) then
                apmask=0
-               if(ncontest.le.4 .or. (ncontest.eq.6.and.iaptype.eq.6)) then
-!                  apmask(1:77)=1   ! mycall, hiscall, RRR|73|RR73
+               if(ncontest.le.4) then
                   apmask(1:91)=1   ! mycall, hiscall, RRR|73|RR73
-                  llrd(1:58)=apmag*apbits(1:58)
-                  if(iaptype.eq.4) llrd(59:77)=apmag*mrrr
-                  if(iaptype.eq.5) llrd(59:77)=apmag*m73
-!                  if(iaptype.eq.6) llrd(59:77)=apmag*mrr73
                   if(iaptype.eq.6) llrd(1:91)=apmag*apbits(1:91)
-               else if(ncontest.eq.6.and.iaptype.eq.4) then ! Hound listens for MyCall RR73;...
-                  apmask(1:28)=1
-                  llrd(1:28)=apmag*apbits(1:28)
                endif
             endif
 
diff --git a/lib/ft4/ft4d.f90 b/lib/ft4/ft4d.f90
index b92ff8711..7c17481b1 100644
--- a/lib/ft4/ft4d.f90
+++ b/lib/ft4/ft4d.f90
@@ -8,6 +8,7 @@ program ft4d
    character*12 hiscall
    character*80 infile
    character*61 line
+   character*4  cqstr
    real*8 fMHz
    integer ihdr(11)
    integer*2 iwave(180000)                !15*12000
@@ -44,11 +45,12 @@ program ft4d
    endif
    nfa=0
    nfb=4224
-   ncontest=4
    ndecodes=0
    nfqso=1500
    mycall="K9AN"
    hiscall="K1JT"
+   ncontest=4
+   cqstr="RU  "
 
    do ifile=iarg,nargs
       call getarg(ifile,infile)
@@ -66,7 +68,7 @@ program ft4d
          i0=(n-1)*istep + 1
          tbuf=(i0-1)/12000.0
          call ft4_decode(cdatetime,tbuf,nfa,nfb,nQSOProgress,ncontest,    &
-              nfqso,iwave(i0),ndecodes,mycall,hiscall,nrx,line,data_dir)
+              nfqso,iwave(i0),ndecodes,mycall,hiscall,cqstr,nrx,line,data_dir)
          do idecode=1,ndecodes
             call get_ft4msg(idecode,nrx,line)
             write(*,'(a61)') line
diff --git a/lib/ft4/getcandidates4.f90 b/lib/ft4/getcandidates4.f90
index 424a7d297..9b5200845 100644
--- a/lib/ft4/getcandidates4.f90
+++ b/lib/ft4/getcandidates4.f90
@@ -20,8 +20,8 @@ subroutine getcandidates4(id,fa,fb,syncmin,nfqso,maxcand,savg,candidate,   &
   if(first) then
     first=.false.
     pi=4.0*atan(1.)
-    window=0.5*(1-cos(pi*(/(i,i=1,NFFT1)/)/(NFFT1/2.0)))
-    window=window**2
+    window=0.
+    call nuttal_window(window,NFFT1)
   endif
 
 ! Compute symbol spectra, stepping by NSTEP steps.  
@@ -69,19 +69,5 @@ subroutine getcandidates4(id,fa,fb,syncmin,nfqso,maxcand,savg,candidate,   &
     endif
   enddo
 
-!  do i=1,maxcand
-!     ipk=maxloc(savsm(nfa:nfb))
-!     ip=nfa-1+ipk(1)
-!     xmax=savsm(ip)
-!     savsm(max(1,ip-8):min(NH1,ip+8))=0.0
-!     if(xmax.ge.syncmin) then
-!        ncand=ncand+1
-!        candidate(1,ncand)=ip*df+f_offset 
-!        candidate(2,ncand)=-99.9
-!        candidate(3,ncand)=xmax
-!     else
-!        exit
-!     endif
-!  enddo
 return
 end subroutine getcandidates4
diff --git a/lib/nuttal_window.f90 b/lib/nuttal_window.f90
new file mode 100644
index 000000000..aa813b15d
--- /dev/null
+++ b/lib/nuttal_window.f90
@@ -0,0 +1,15 @@
+subroutine nuttal_window(win,n)
+  real win(n)
+
+  pi=4.0*atan(1.0)
+  a0=0.3635819
+  a1=-0.4891775;
+  a2=0.1365995;
+  a3=-0.0106411;
+  do i=1,n
+     win(i)=a0+a1*cos(2*pi*(i-1)/(n))+ &
+          a2*cos(4*pi*(i-1)/(n))+ &
+          a3*cos(6*pi*(i-1)/(n))
+  enddo
+  return
+end subroutine nuttal_window
diff --git a/lib/symspec.f90 b/lib/symspec.f90
index 78215e209..b9f5e2088 100644
--- a/lib/symspec.f90
+++ b/lib/symspec.f90
@@ -50,18 +50,8 @@ subroutine symspec(shared_data,k,ntrperiod,nsps,ingain,bLowSidelobes,    &
   if(nfft3.ne.nfft3z) then
 ! Compute new window
      pi=4.0*atan(1.0)
-! Coefficients taken from equation 37 of NUSC report:
-! "Some windows with very good sidelobe behavior: application to 
-! discrete Hilbert Transform, by Albert Nuttall"
-     a0=0.3635819
-     a1=-0.4891775;
-     a2=0.1365995;
-     a3=-0.0106411;
-     do i=1,nfft3
-        w3(i)=a0+a1*cos(2*pi*(i-1)/(nfft3))+ &
-             a2*cos(4*pi*(i-1)/(nfft3))+ &
-             a3*cos(6*pi*(i-1)/(nfft3))
-     enddo
+     w3=0
+     call nuttal_window(w3,nfft3)
      nfft3z=nfft3
   endif
 
diff --git a/lib/wsprd/Makefile b/lib/wsprd/Makefile
index 920407349..c8e15723f 100644
--- a/lib/wsprd/Makefile
+++ b/lib/wsprd/Makefile
@@ -1,11 +1,10 @@
 CC = gcc
-#CC = clang-3.5
 FC = gfortran
 
-CFLAGS= -I/usr/include -Wall -Wno-missing-braces -O3 -ffast-math
+CFLAGS= -I/usr/include -Wall -Wno-missing-braces -Wno-unused-result -O3 -ffast-math
 LDFLAGS = -L/usr/lib
-FFLAGS =  -O2 -Wall -Wno-conversion
-LIBS = -lfftw3f -lm
+FFLAGS = -O2 -Wall -Wno-conversion
+LIBS = -lfftw3f -lm -lgfortran
 
 # Default rules
 %.o: %.c $(DEPS)
@@ -14,21 +13,27 @@ LIBS = -lfftw3f -lm
 	${FC} ${FFLAGS} -c $<
 %.o: %.F
 	${FC} ${FFLAGS} -c $<
-%.o: %.f90
+%.o: %.f90 
 	${FC} ${FFLAGS} -c $<
 %.o: %.F90
 	${FC} ${FFLAGS} -c $<
 
-all:    wsprd wsprsim wsprd_exp
+all:    wsprd wsprsim
 
 DEPS =  wsprsim_utils.h wsprd_utils.h fano.h jelinek.h nhash.h
-OBJS1 = wsprd.o wsprsim_utils.o wsprd_utils.o tab.o fano.o jelinek.o nhash.o
+
+indexx.o: ../indexx.f90
+	${FC} -o indexx.o ${FFLAGS} -c ../indexx.f90 
+
+OBJS1 = wsprd.o wsprsim_utils.o wsprd_utils.o tab.o fano.o jelinek.o nhash.o indexx.o osdwspr.o
+
 wsprd: $(OBJS1)
 	$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS) $(LIBS)
 
 OBJS2 = wsprsim.o wsprsim_utils.o wsprd_utils.o tab.o fano.o nhash.o 
+
 wsprsim: $(OBJS2) 
 	$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS) $(LIBS)
 
 clean:
-	rm *.o wsprd wsprsim
+	$(RM) *.o wsprd wsprsim
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index be579deef..2f4c47db3 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -171,8 +171,8 @@ extern "C" {
 
   void ft4_decode_(char* cdatetime, float* tbuf, int* nfa, int* nfb, int* nQSOProgress,
                    int* nContest, int* nfqso, short int id[], int* ndecodes, char* mycall,
-                   char* hiscall, int* nrx, char* line, char* ddir, int len1, int len2,
-                   int len3, int len4, int len5);
+                   char* hiscall, char* cqstr, int* nrx, char* line, char* ddir, int len1,
+                   int len2, int len3, int len4, int len5, int len6);
 
   void get_ft4msg_(int* idecode, int* nrx, char* line, int len);
 
@@ -8714,8 +8714,17 @@ void MainWindow::ft4Data(int k)
   dataDir = m_config.writeable_data_dir ().absolutePath ();
   char ddir[512];
   strncpy(ddir,dataDir.toLatin1(), sizeof (ddir) - 1);
+  char cqstr[4];
+  strncpy(cqstr,"    ",4);
+  if(SpecOp::NA_VHF == m_config.special_op_id()) strncpy(cqstr,"TEST",4);
+  if(SpecOp::EU_VHF == m_config.special_op_id()) strncpy(cqstr,"TEST",4);
+  if(SpecOp::FIELD_DAY == m_config.special_op_id()) strncpy(cqstr,"FD",2);
+  if(SpecOp::RTTY == m_config.special_op_id()) {
+        if(m_config.RTTY_Exchange()!="SCC") strncpy(cqstr,"RU",2);
+        if(m_config.RTTY_Exchange()=="SCC") strncpy(cqstr,"SCC",3);
+  }
   ft4_decode_(cdatetime,&tbuf,&nfa,&nfb,&nQSOProgress,&nContest,&nfqso,id,&ndecodes,&mycall[0],&hiscall[0],
-              &nrx,&line[0],&ddir[0],17,12,12,61,512);
+              &cqstr[0],&nrx,&line[0],&ddir[0],17,12,12,4,61,512);
   line[60]=0;
   for (int idecode=1; idecode<=ndecodes; idecode++) {
     get_ft4msg_(&idecode,&nrx,&line[0],61);