diff --git a/q65w/libm65/filbig.f90 b/q65w/libm65/filbig.f90
index ada8ccc0c..82c27ee83 100644
--- a/q65w/libm65/filbig.f90
+++ b/q65w/libm65/filbig.f90
@@ -7,7 +7,7 @@ subroutine filbig(dd,nmax,f0,newdat,nfsample,xpol,c4a,c4b,n4)
   parameter (MAXFFT1=5376000,MAXFFT2=77175)
   real*4  dd(4,nmax)                         !Input data
   complex ca(MAXFFT1),cb(MAXFFT1)            !FFTs of input
-  complex c4a(MAXFFT2),c4b(MAXFFT2)          !Output data
+  complex c4a(MAXFFT2)                       !Output data
   real*8 df
   real halfpulse(8)                 !Impulse response of filter (one sided)
   complex cfilt(MAXFFT2)                     !Filter (complex; imag = 0)
@@ -15,7 +15,7 @@ subroutine filbig(dd,nmax,f0,newdat,nfsample,xpol,c4a,c4b,n4)
   integer*8 plan1,plan2,plan3,plan4,plan5
   logical first,xpol
   include 'fftw3.f'
-  common/cacb/ca,cb
+  common/cacb/ca
   equivalence (rfilt,cfilt)
   data first/.true./,npatience/1/
   data halfpulse/114.97547150,36.57879257,-20.93789101,                &
@@ -76,18 +76,15 @@ subroutine filbig(dd,nmax,f0,newdat,nfsample,xpol,c4a,c4b,n4)
      nz=min(nmax,nfft1)
      do i=1,nz
         ca(i)=cmplx(dd(1,i),dd(2,i))
-        if(xpol) cb(i)=cmplx(dd(3,i),dd(4,i))
      enddo
 
      if(nmax.lt.nfft1) then
         do i=nmax+1,nfft1
            ca(i)=0.
-           if(xpol) cb(i)=0.
         enddo
      endif
      call timer('FFTbig  ',0)
      call sfftw_execute(plan1)
-     if(xpol) call sfftw_execute(plan2)
      call timer('FFTbig  ',1)
      newdat=0
   endif
@@ -101,23 +98,19 @@ subroutine filbig(dd,nmax,f0,newdat,nfsample,xpol,c4a,c4b,n4)
      j=i0+i-1                              !and apply the filter function
      if(j.ge.1 .and. j.le.nfft1) then
         c4a(i)=rfilt(i)*ca(j)
-        if(xpol) c4b(i)=rfilt(i)*cb(j)
      else
         c4a(i)=0.
-        if(xpol) c4b(i)=0.
      endif
   enddo
   do i=nh+1,nfft2
      j=i0+i-1-nfft2
      if(j.lt.1) j=j+nfft1                  !nfft1 was nfft2
      c4a(i)=rfilt(i)*ca(j)
-     if(xpol) c4b(i)=rfilt(i)*cb(j)
   enddo
 
 ! Do the short reverse transform, to go back to time domain.
   call timer('FFTsmall',0)
   call sfftw_execute(plan3)
-  if(xpol) call sfftw_execute(plan4)
   call timer('FFTsmall',1)
   n4=min(nmax/64,nfft2)
   go to 999
diff --git a/q65w/libm65/q65b.f90 b/q65w/libm65/q65b.f90
index 13023047e..5175abd1f 100644
--- a/q65w/libm65/q65b.f90
+++ b/q65w/libm65/q65b.f90
@@ -21,7 +21,7 @@ subroutine q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol,xpol, &
 !  type(hdr) h                            !Header for the .wav file
   integer*2 iwave(60*12000)
   complex ca(MAXFFT1),cb(MAXFFT1)          !FFTs of raw x,y data
-  complex cx(0:MAXFFT2-1),cy(0:MAXFFT2-1),cz(0:MAXFFT2)
+  complex cx(0:MAXFFT2-1),cz(0:MAXFFT2)
   logical xpol,ldecoded
   integer ipk1(1)
   real*8 fcenter,freq0,freq1
@@ -35,7 +35,7 @@ subroutine q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol,xpol, &
   character*1 cp,cmode*2
   character*60 result
   common/decodes/ndecodes,ncand,result(50)
-  common/cacb/ca,cb
+  common/cacb/ca
   common/early/nhsym1,nhsym2,ldecoded(32768)
   data nutc00/-1/,msg00/'                            '/
   save
@@ -59,7 +59,6 @@ subroutine q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol,xpol, &
   if(ldecoded(ipk)) go to 900
   snr1=sync(ipk)%ccfmax
   ipol=1
-  if(xpol) ipol=sync(ipk)%ipol
 
   nfft1=MAXFFT1
   nfft2=MAXFFT2
@@ -81,12 +80,8 @@ subroutine q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol,xpol, &
   fac=1.0/nfft2
   cx(0:nfft2-1)=ca(k0:k0+nfft2-1)
   cx=fac*cx
-  if(xpol) then
-     cy(0:nfft2-1)=cb(k0:k0+nfft2-1)
-     cy=fac*cy
-  endif
 
-! Here cx and cy (if xpol) are frequency-domain data around the selected
+! Here cx is frequency-domain data around the selected
 ! QSO frequency, taken from the full-length FFT computed in filbig().
 ! Values for fsample, nfft1, nfft2, df, and the downsampled data rate
 ! are as follows:
@@ -98,12 +93,7 @@ subroutine q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol,xpol, &
 !   95238  5120000  0.018601172  322560   5999.994
 
   poldeg=0.
-  if(xpol) then
-     poldeg=sync(ipk)%pol
-     cz(0:MAXFFT2-1)=cos(poldeg/RAD)*cx + sin(poldeg/RAD)*cy
-  else
-     cz(0:MAXFFT2-1)=cx
-  endif
+  cz(0:MAXFFT2-1)=cx
 
   cz(MAXFFT2)=0.
 ! Roll off below 500 Hz and above 2500 Hz.
@@ -151,20 +141,14 @@ subroutine q65b(nutc,nqd,nxant,fcenter,nfcal,nfsample,ikhz,mousedf,ntol,xpol, &
      nq65df=nint(1000*(0.001*k0*df+nkhz_center-48.0+1.000-1.27046-ikhz))-nfcal
      nq65df=nq65df + nfreq0 - 1000
      npol=nint(poldeg)
-     if(nxant.ne.0) then
-        npol=npol-45
-        if(npol.lt.0) npol=npol+180
-     endif
-     call txpol(xpol,msg0(1:22),mygrid,npol,nxant,ntxpol,cp)
      ikhz1=ikhz
      ndf=nq65df
      if(ndf.gt.500) ikhz1=ikhz + (nq65df+500)/1000
      if(ndf.lt.-500) ikhz1=ikhz + (nq65df-500)/1000
      ndf=nq65df - 1000*(ikhz1-ikhz)
      if(nqd.eq.1 .and. abs(nq65df-mousedf).lt.ntol) then
-        write(line,1020) ikhz1,ndf,npol,nutc,xdt0,nsnr0,msg0(1:27),cq0,  &
-             ntxpol,cp
-1020    format('!',i3.3,i5,i4,i6.4,f5.1,i5,' : ',a27,a3,i4,1x,a1)
+        write(line,1020) ikhz1,ndf,npol,nutc,xdt0,nsnr0,msg0(1:27),cq0
+1020    format('!',i3.3,i5,i4,i6.4,f5.1,i5,' : ',a27,a3)
         write(*,1100) trim(line)
 1100    format(a)
      endif