diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2efeea807..b1bb81118 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -602,7 +602,7 @@ set (wsjt_FSRCS
   lib/fsk4hf/osd204.f90
   lib/fsk4hf/genwsprcpm.f90
   lib/fsk4hf/encode204.f90
-#  lib/ft8/decode174_91.f90
+  lib/fsk4hf/decode174_74.f90
   lib/fsk4hf/ldpcsim174_91.f90
   lib/fsk4hf/ldpcsim174_74.f90
   lib/fsk4hf/ldpcsim174_101.f90
diff --git a/lib/fsk4hf/ldpcsim174_74.f90 b/lib/fsk4hf/ldpcsim174_74.f90
index 27e59838c..1db5f066e 100644
--- a/lib/fsk4hf/ldpcsim174_74.f90
+++ b/lib/fsk4hf/ldpcsim174_74.f90
@@ -98,10 +98,6 @@ program ldpcsim174_74
          rx2av=sum(rxdata*rxdata)/N
          rxsig=sqrt(rx2av-rxav*rxav)
          rxdata=rxdata/rxsig
-! To match the metric to the channel, s should be set to the noise standard deviation.
-! For now, set s to the value that optimizes decode probability near threshold.
-! The s parameter can be tuned to trade a few tenth's dB of threshold for an order of
-! magnitude in UER
          if( s .lt. 0 ) then
             ss=sigma
          else
@@ -114,7 +110,8 @@ program ldpcsim174_74
          call bpdecode174_74(llr,apmask,max_iterations,message,cw,nharderror,niterations)
          dmin=0.0
          if( (nharderror .lt. 0) .and. (ndeep .ge. 0) ) then
-            call osd174_74(llr, Keff, apmask, ndeep, message, cw, nharderror, dmin)
+!            call osd174_74(llr, Keff, apmask, ndeep, message, cw, nharderror, dmin)
+call decode174_74(llr,Keff,ndeep,apmask,max_iterations,message,cw,nharderror,niterations,ncheck,dmin,isuper)
          endif
 
          if(nharderror.ge.0) then
diff --git a/lib/fsk4hf/osd174_74.f90 b/lib/fsk4hf/osd174_74.f90
index 8417e7864..e954f4eff 100644
--- a/lib/fsk4hf/osd174_74.f90
+++ b/lib/fsk4hf/osd174_74.f90
@@ -22,7 +22,7 @@ subroutine osd174_74(llr,k,apmask,ndeep,message74,cw,nhardmin,dmin)
    integer indices(N),nxor(N)
    integer*1 cw(N),ce(N),c0(N),hdec(N)
    integer*1, allocatable :: decoded(:)
-   integer*1 message50(50),message74(74)
+   integer*1 message74(74)
    integer indx(N)
    real llr(N),rx(N),absrx(N)
 
diff --git a/lib/fsk4hf/wspr4d.f90 b/lib/fsk4hf/wspr4d.f90
index 131fff0c3..78d66b7fa 100644
--- a/lib/fsk4hf/wspr4d.f90
+++ b/lib/fsk4hf/wspr4d.f90
@@ -119,13 +119,13 @@ program wspr4d
          enddo
 
          if(smax .lt. 100.0 ) cycle
+
          idecoded=0
-         do ijitter=0,4
+         do ijitter=0,2
             if(idecoded.eq.1) exit
-            if(ijitter.eq.1) ioffset=20
-            if(ijitter.eq.2) ioffset=-20
-            if(ijitter.eq.3) ioffset=40
-            if(ijitter.eq.4) ioffset=-40
+            if(ijitter.eq.0) ioffset=0
+            if(ijitter.eq.1) ioffset=50
+            if(ijitter.eq.2) ioffset=-50
             is0=isbest+ioffset
             if(is0.lt.0) cycle
             cframe=c2(is0:is0+103*416-1)
@@ -168,7 +168,13 @@ program wspr4d
                dmin=0.0
                call bpdecode174_74(llr,apmask,max_iterations,message,cw,nhardbp,niterations)
                Keff=64
-               if(nhardbp.lt.0) call osd174_74(llr,Keff,apmask,5,message,cw,nhardosd,dmin)
+!               if(nhardbp.lt.0) call osd174_74(llr,Keff,apmask,5,message,cw,nhardosd,dmin)
+               maxsuperits=2
+               ndeep=4 
+               if(nhardbp.lt.0) then
+                  call decode174_74(llr,Keff,ndeep,apmask,maxsuperits,message,cw,nhardosd,iter,ncheck,dmin,isuper)
+               endif
+
                if(nhardbp.ge.0 .or. nhardosd.ge.0) then
                   write(c77,'(50i1)') message
                   c77(51:77)='000000000000000000000110000'