From 311dcdf7b90cd1ff95177910dddce8e7296046eb Mon Sep 17 00:00:00 2001
From: Steven Franke <s.j.franke@icloud.com>
Date: Wed, 1 Jun 2016 11:20:33 +0000
Subject: [PATCH] Put back the original jtmsk_decode.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6714 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 lib/jtmsk_decode.f90 | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/lib/jtmsk_decode.f90 b/lib/jtmsk_decode.f90
index 335e3aca1..344d08b11 100644
--- a/lib/jtmsk_decode.f90
+++ b/lib/jtmsk_decode.f90
@@ -1,10 +1,10 @@
 subroutine jtmsk_decode(id2,narg,line)
 
-! Calls the experimental decoder for JTMSK 72ms ldpc messages
+! Decoder for JTMSK mode
 
   parameter (NMAX=30*12000)
   parameter (NFFTMAX=512*1024)
-  parameter (NSPM=864)               !Samples per JTMSK long message
+  parameter (NSPM=1404)                !Samples per JTMSK long message
   integer*2 id2(0:NMAX)                !Raw i*2 data, up to T/R = 30 s
   integer hist(0:32868)
   real d(0:NMAX)                       !Raw r*4 data
@@ -54,58 +54,58 @@ subroutine jtmsk_decode(id2,narg,line)
 !### Would it be better to set median rms to 1.0 ?
 !  d(0:npts-1)=d(0:npts-1)/rms          !Normalize so that rms=1.0
   call mskdt(d,npts,ty,yellow,nyel)
-!  do i=1,nyel
-!    print*,i,ty(i),yellow(i)
-!  enddo
-
   nyel=min(nyel,5)
 
   n=log(float(npts))/log(2.0) + 1.0
   nfft=min(2**n,1024*1024)
   call analytic(d,npts,nfft,c)         !Convert to analytic signal and filter
 
-  nafter=NSPM
+  nbefore=NSPM
+  nafter=4*NSPM
 ! Process ping list (sorted by S/N) from top down.
-!  do n=1,nyel
   do n=1,nyel
-     ia=ty(n)*12000.0 - NSPM/2
+     ia=ty(n)*12000.0 - nbefore
      if(ia.lt.1) ia=1
-     ib=ia + 2*nafter-1
+     ib=ia + nafter
      if(ib.gt.NFFTMAX) ib=NFFTMAX
      iz=ib-ia+1
      cdat2(1:iz)=c(ia:ib)               !Select nlen complex samples
-!     write(*,*) ty(1),ia,ib,iz
      ja=ia/NSPM + 1
      jb=ib/NSPM
      t0=ia/12000.0
-!     do itry=1,21
-     do itry=1,1
+
+     do itry=1,21
         idf1=(itry/2) * 50
         if(mod(itry,2).eq.1) idf1=-idf1
         if(abs(idf1).gt.ntol) exit
         fpk=idf1 + nrxfreq
         call tweak1(cdat2,iz,1500.0-fpk,cdat)
-        call syncmsk144(cdat,iz,jpk,ipk,idf,rmax,snr,metric,msg,freq)
+        call syncmsk(cdat,iz,jpk,ipk,idf,rmax,snr,metric,msg)
         if(metric.eq.-9999) cycle             !No output if no significant sync
         if(msg(1:1).eq.' ') call jtmsk_short(cdat,iz,narg,tbest,idfpk,msg)
         if(msg(1:1).eq.'<' .and. naggressive.eq.0 .and.      &
              narg(13)/8.ne.narg(12)) msg='                      '
         if(msg(1:1).ne.' ') then
-!           if(msg.ne.msg0) then
+           if(msg.ne.msg0) then
               nline=nline+1
               nsnr0=-99
-!           endif
+           endif
+           freq=fpk+idf
            t0=(ia+jpk)/12000.0
            y=10.0**(0.1*(yellow(n)-1.5))
            nsnr=max(-5,nint(db(y)))
-!           if(nsnr.gt.nsnr0 .and. nline.gt.0) then
+           if(nsnr.gt.nsnr0 .and. nline.gt.0) then
+              call rectify_msk(cdat2(jpk:jpk+NSPM-1),msg,narg(13),freq2)
+              freq=freq2
+              if(msg(1:1).eq.'<') freq=freq2+idfpk
+!### Check freq values !!!
               write(line(nline),1020) nutc,nsnr,t0,nint(freq),msg
 1020          format(i6.6,i4,f5.1,i5,' & ',a22)
               nsnr0=nsnr
-!              go to 900
-!           endif
+              go to 900
+           endif
            msg0=msg
-!           if(nline.ge.maxlines) go to 900
+           if(nline.ge.maxlines) go to 900
         endif
      enddo
 !     print*,'c',nutc,n,nint(yellow(n)-4.0),freq,freq2