diff --git a/libm65/map65a.f90 b/libm65/map65a.f90
index 8cc0c2349..d7292f898 100644
--- a/libm65/map65a.f90
+++ b/libm65/map65a.f90
@@ -223,8 +223,9 @@ subroutine map65a(dd,ss,savg,newdat,nutc,fcenter,ntol,idphi,nfa,nfb,        &
                  call timer('decode1a',1)
                  if(nqd.eq.2) then
                     call timer('qra64   ',0)
-                    call qra64b(nutc,nqd,ikhz,mousedf,ntol,xpol,mycall,   &
-                         hiscall,hisgrid,mode64,nwrite_qra64)
+                    call qra64b(nutc,nqd,fcenter,nfcal,ikhz,              &
+                         mousedf,ntol,xpol,mycall,hiscall,hisgrid,        &
+                         mode64,nwrite_qra64)
                     call timer('qra64   ',1)
                     cycle
                  endif
diff --git a/libm65/qra64b.f90 b/libm65/qra64b.f90
index adb15a132..cb0148043 100644
--- a/libm65/qra64b.f90
+++ b/libm65/qra64b.f90
@@ -1,11 +1,12 @@
-subroutine qra64b(nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,hiscall_12,   &
-     hisgrid_6,mode64,nwrite_qra64)
+subroutine qra64b(nutc,nqd,fcenter,nfcal,ikhz,mousedf,ntol,xpol,    &
+     mycall_12,hiscall_12,hisgrid_6,mode64,nwrite_qra64)
 
   parameter (NFFT1=5376000)              !56*96000
   parameter (NFFT2=336000)               !56*6000 (downsampled by 1/16)
   complex ca(NFFT1),cb(NFFT1)            !FFTs of raw x,y data
   complex cx(0:NFFT2-1),cy(0:NFFT2-1)
   logical xpol
+  real*8 fcenter
   character*12 mycall_12,hiscall_12
   character*6 hisgrid_6
   common/cacb/ca,cb
@@ -13,7 +14,9 @@ subroutine qra64b(nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,hiscall_12,   &
 
   open(17,file='red.dat',status='unknown')
   df=96000.0/NFFT1
-  k0=(ikhz-75.170)*1000.0/df
+  ikhz0=nint(1000.0*(fcenter-int(fcenter)))
+  k0=((ikhz-ikhz0+48.0+1.27)*1000.0+nfcal)/df
+
   nh=nfft2/2
   if(k0.lt.nh .or. k0.gt.NFFT1-nh) go to 900
   
@@ -25,16 +28,16 @@ subroutine qra64b(nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,hiscall_12,   &
   cy(nh+1:NFFT2-1)=cb(k0-nh+1:k0-1)
   cy=fac*cy
 
-!  write(60) cx,cy,nutc,nqd,ikhz,mousedf,ntol,xplo,mycall_12,           &
+!  write(60) cx,cy,nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,           &
 !       hiscall_12,hisgrid_6
 
-  if(nzap.gt.0) call qra64zap(cx,cy,nzap)
+  if(nzap.gt.0) call qra64zap(cx,cy,xpol,nzap)
 
 ! Transform back to time domain with sample rate 6000 Hz.
   call four2a(cx,NFFT2,1,-1,1)
   call four2a(cy,NFFT2,1,-1,1)
 
-  call qra64c(cx,cy,nutc,nqd,ikhz,mousedf,ntol,xplo,mycall_12,    &
+  call qra64c(cx,cy,nutc,nqd,ikhz,mousedf,ntol,xpol,mycall_12,    &
        hiscall_12,hisgrid_6,mode64,nwrite_qra64)
   close(17)
   
diff --git a/libm65/qra64c.f90 b/libm65/qra64c.f90
index db1329cf9..b1dfd37d6 100644
--- a/libm65/qra64c.f90
+++ b/libm65/qra64c.f90
@@ -67,7 +67,9 @@ subroutine qra64c(cx,cy,nutc,nqd,ikhz,nfqso,ntol,xpol,mycall_12,     &
   naptype=maxaptype
   npts2=NFFT2
 
-  do ip=0,3
+  ipz=0
+  if(xpol) ipz=3
+  do ip=0,ipz
      if(ip.eq.0) c00(0:NFFT2-1)=conjg(cx)
      if(ip.eq.1) c00(0:NFFT2-1)=0.707*conjg(cx+cy)
      if(ip.eq.2) c00(0:NFFT2-1)=conjg(cy)
@@ -170,7 +172,6 @@ subroutine qra64c(cx,cy,nutc,nqd,ikhz,nfqso,ntol,xpol,mycall_12,     &
      if(nSubmode.eq.4) nsnr=nint(10.0*log10(sy)-24.0)   !E
   endif
 
-!###
 !  If Tx station's grid is in decoded message, compute optimum TxPol
   i1=index(decoded,' ')
   i2=index(decoded(i1+1:),' ') + i1
@@ -193,13 +194,6 @@ subroutine qra64c(cx,cy,nutc,nqd,ikhz,nfqso,ntol,xpol,mycall_12,     &
         endif
      endif
   endif
-!###
-
-!###
-!     write(62,3010) ikHz,nfreq,npol,nutc,dtx,nsnr,cmode(1:1),decoded,   &
-!          irc,sync,sync2
-!3010 format(i3,i5,i4,i6.4,f5.1,i5,1x,a1,1x,a22,i3,2f7.1)
-!###
   
   if(irc.ge.0) then
      write(*,1010) ikHz,nfreq,npol,nutc,dtx,nsnr,cmode(1:1),decoded,   &
diff --git a/libm65/qra64zap.f90 b/libm65/qra64zap.f90
index 63b3fecd5..6129ea238 100644
--- a/libm65/qra64zap.f90
+++ b/libm65/qra64zap.f90
@@ -1,10 +1,11 @@
-subroutine qra64zap(cx,cy,nzap)
+subroutine qra64zap(cx,cy,xpol,nzap)
 
   parameter (NFFT1=5376000)              !56*96000
   parameter (NFFT2=336000)               !56*6000 (downsampled by 1/16)
   complex cx(0:NFFT2-1),cy(0:NFFT2-1)
   real s(-1312:1312)
   integer iloc(1)
+  logical xpol
 
   slimit=3.0
   sbottom=1.5
@@ -19,8 +20,8 @@ subroutine qra64zap(cx,cy,nzap)
      if(j.gt.nblks/2) j=j-nblks
      do n=1,nadd
         k=k+1
-        s(j)=s(j) + real(cx(k))**2 + aimag(cx(k))**2 +                 &
-             real(cy(k))**2 + aimag(cy(k))**2
+        s(j)=s(j) + real(cx(k))**2 + aimag(cx(k))**2
+        if(xpol) s(j)=s(j) + real(cy(k))**2 + aimag(cy(k))**2
      enddo
   enddo
   call pctile(s,nblks,45,base)
diff --git a/libm65/sync64.f90 b/libm65/sync64.f90
index 6bcee4dc7..23c945e21 100644
--- a/libm65/sync64.f90
+++ b/libm65/sync64.f90
@@ -115,6 +115,12 @@ subroutine sync64(c0,nf1,nf2,nfqso,ntol,mode64,emedelay,dtx,f0,jpk,sync,  &
         dtx=jpk/6000.0 - 1.0
         ipk=ip
         f0=ip*df3 - 3000.0
+!        rewind 61
+!        do i=iaa,ibb
+!           write(61,3301) i*df3-3000.0,s0(i),s1(i),s2(i),s3(i)
+!3301       format(5f12.3)
+!        enddo
+!        flush(61)
      endif
      call timer('sync64_2',1)
   enddo