Index: js8call-2.1.1/lib/ft8/filt8.f90
===================================================================
--- js8call-2.1.1.orig/lib/ft8/filt8.f90
+++ js8call-2.1.1/lib/ft8/filt8.f90
@@ -9,7 +9,7 @@ subroutine filt8(f0,nslots,width,wave)
   equivalence (x,cx)
 
   x=wave
-  call four2a(x,NFFT,1,-1,0)              !r2c
+  call four2a(cx,NFFT,1,-1,0)              !r2c
   df=12000.0/NFFT
   fa=f0 - 0.5*6.25
   fb=f0 + 7.5*6.25 + (nslots-1)*60.0
@@ -35,7 +35,7 @@ subroutine filt8(f0,nslots,width,wave)
 !###
   if(nslots.ne.99) return
   x=wave
-  call four2a(x,NFFT,1,-1,0)              !r2c
+  call four2a(cx,NFFT,1,-1,0)              !r2c
   do i=0,NH
      s1(i)=real(cx(i))**2 + aimag(cx(i))**2
   enddo
Index: js8call-2.1.1/lib/ft8/foxfilt.f90
===================================================================
--- js8call-2.1.1.orig/lib/ft8/foxfilt.f90
+++ js8call-2.1.1/lib/ft8/foxfilt.f90
@@ -10,7 +10,7 @@ subroutine foxfilt(nslots,nfreq,width,wa
 
   x(1:NWAVE)=wave
   x(NWAVE+1:)=0.
-  call four2a(x,NFFT,1,-1,0)              !r2c
+  call four2a(cx,NFFT,1,-1,0)              !r2c
   df=48000.0/NFFT
   fa=nfreq - 0.5*6.25
   fb=nfreq + 7.5*6.25 + (nslots-1)*(width+OFFSET)
Index: js8call-2.1.1/lib/lpf1.f90
===================================================================
--- js8call-2.1.1.orig/lib/lpf1.f90
+++ js8call-2.1.1/lib/lpf1.f90
@@ -11,7 +11,7 @@ subroutine lpf1(dd,jz,dat,jz2)
   fac=1.0/float(NFFT1)
   x(1:jz)=fac*dd(1:jz)
   x(jz+1:NFFT1)=0.0
-  call four2a(x,NFFT1,1,-1,0)                    !Forwarxd FFT, r2c
+  call four2a(cx,NFFT1,1,-1,0)                    !Forwarxd FFT, r2c
   cx(NFFT2/2:)=0.0
 
 !  df=11025.0/NFFT1